{"id":302306,"date":"2024-01-03T21:02:22","date_gmt":"2024-01-03T14:02:22","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=302306"},"modified":"2024-01-03T21:02:22","modified_gmt":"2024-01-03T14:02:22","slug":"bang-ascii","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/bang-ascii\/","title":{"rendered":"B\u1ea3ng m\u00e3 ASCII l\u00e0 g\u00ec? T\u1ed5ng h\u1ee3p m\u00e3 ASCII chi ti\u1ebft"},"content":{"rendered":"

Th\u1eddi \u0111\u1ea1i c\u00f4ng ngh\u1ec7 ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd, thu\u1eadt ng\u1eef \u201c<\/span>b\u1ea3ng ASCII<\/b>\u201d c\u0169ng b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi t\u00ecm hi\u1ec3u h\u01a1n. V\u00e0 ch\u1eafc h\u1eb3n b\u1ea1n c\u0169ng \u0111\u00e3 m\u1ed9t hai l\u1ea7n b\u1eaft g\u1eb7p t\u1eeb n\u00e0y khi tra c\u1ee9u d\u1eef li\u1ec7u v\u1ec1 ng\u00e0nh c\u00f4ng ngh\u1ec7 th\u00f4ng tin. B\u00e0i vi\u1ebft n\u00e0y c\u1ee7a Ho\u00e0ng H\u00e0 Mobile s\u1ebd cung c\u1ea5p c\u00e1c ki\u1ebfn th\u1ee9c quan tr\u1ecdng \u0111\u1ec3 b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 m\u00e3 ASCII nh\u00e9.<\/span><\/p>\n

B\u1ea3ng ASCII l\u00e0 g\u00ec?<\/b><\/h2>\n

T\u00ean \u0111\u00fang c\u1ee7a t\u1eeb ASCII l\u00e0 American Standard Code for Information Interchange. \u0110\u00e2y l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u1ea1i s\u1ed1 m\u00e3 h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c m\u00e1y t\u00ednh v\u00e0 truy\u1ec1n th\u00f4ng. Trong \u0111\u00f3, b\u1ea3ng m\u00e3 bao g\u1ed3m 128 k\u00fd t\u1ef1 c\u01a1 b\u1ea3n c\u00f3 ch\u1ee9a c\u00e1c ch\u1eef c\u00e1i, s\u1ed1, d\u1ea5u ch\u1ea5m c\u00e2u, k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t v\u00e0 c\u00e1c k\u00fd t\u1ef1 \u0111i\u1ec1u khi\u1ec3n. M\u1ed7i k\u00fd t\u1ef1 \u0111\u01b0\u1ee3c g\u00e1n m\u1ed9t gi\u00e1 tr\u1ecb s\u1ed1 nguy\u00ean duy nh\u1ea5t t\u1eeb 0 \u0111\u1ebfn 127, v\u00e0 h\u1ec7 th\u1ed1ng n\u00e0y t\u1ea1o ra m\u1ed9t c\u00e1ch th\u1ed1ng nh\u1ea5t \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u00f4ng tin v\u0103n b\u1ea3n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb v\u00e0 m\u00e1y t\u00ednh kh\u00e1c nhau.<\/span><\/p>\n

\"bang-ascii-1\"<\/picture><\/p>\n

V\u1edbi s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a m\u00e1y t\u00ednh v\u00e0 truy\u1ec1n th\u00f4ng, ASCII \u0111\u00e3 tr\u1edf th\u00e0nh ng\u00f4n ng\u1eef chung \u0111\u1ec3 truy\u1ec1n t\u1ea3i th\u00f4ng tin gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng kh\u00e1c nhau. N\u00f3 c\u00f2n l\u00e0 c\u01a1 s\u1edf cho nhi\u1ec1u b\u1ea3ng m\u00e3 m\u1edf r\u1ed9ng kh\u00e1c nhau nh\u01b0 Unicode, gi\u00fap h\u1ed7 tr\u1ee3 m\u1ed9t ph\u1ea1m vi r\u1ed9ng l\u1edbn h\u01a1n c\u00e1c k\u00fd t\u1ef1 v\u00e0 ng\u00f4n ng\u1eef tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/span><\/p>\n

M\u1eb7c d\u00f9, b\u1ea3ng code ASCII \u0111\u00e3 c\u00f3 nh\u1eefng gi\u1edbi h\u1ea1n v\u1edbi vi\u1ec7c h\u1ed7 tr\u1ee3 ng\u00f4n ng\u1eef v\u00e0 k\u00fd t\u1ef1 qu\u1ed1c gia \u0111\u1eb7c bi\u1ec7t, nh\u01b0ng n\u00f3 v\u1eabn l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong l\u1ecbch s\u1eed v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e3 h\u00f3a k\u00fd t\u1ef1 hi\u1ec7n \u0111\u1ea1i.<\/span><\/p>\n

L\u1ecbch s\u1eed h\u00ecnh th\u00e0nh c\u1ee7a b\u1ea3ng ASCII<\/b><\/h2>\n

\u0110\u01b0\u1ee3c bi\u1ebft, <\/span>b\u1ea3ng m\u00e3 ASCII<\/b> \u0111\u01b0\u1ee3c Vi\u1ec7n Ti\u00eau chu\u1ea9n Qu\u1ed1c gia Hoa K\u1ef3 (American National Standards Institute) c\u00f4ng b\u1ed1 l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 1963. V\u00e0 cho \u0111\u1ebfn nay b\u1ea3ng m\u00e3 n\u00e0y v\u1eabn \u0111\u01b0\u1ee3c xem l\u00e0 b\u1ea3ng t\u01b0 li\u1ec7u ti\u00eau chu\u1ea9n c\u00f3 t\u00ednh \u1ee9ng d\u1ee5ng th\u00e0nh c\u00f4ng nh\u1ea5t. \u0110\u1eb7c bi\u1ec7t, d\u01b0\u1edbi \u0111\u00e2y Ho\u00e0ng H\u00e0 Mobile s\u1ebd t\u1ed5ng h\u1ee3p cho b\u1ea1n v\u00e0i c\u1ed9t m\u1ed1c \u0111\u00e1ng nh\u1edb trong qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh n\u00ean b\u1ea3ng m\u00e3 n\u00e0y nh\u00e9.<\/span><\/p>\n

Xu\u1ea5t ph\u00e1t \u0111i\u1ec3m c\u1ee7a ASCII l\u00e0 trong b\u1ed1i c\u1ea3nh th\u1eddi k\u1ef3 chi\u1ebfn tranh th\u1ebf gi\u1edbi th\u1ee9 hai. Ngay l\u00fac n\u00e0y s\u1ef1 c\u1ea7n thi\u1ebft ph\u1ea3i c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng chu\u1ea9n h\u00f3a \u0111\u1ec3 truy\u1ec1n t\u1ea3i th\u00f4ng tin gi\u1eefa c\u00e1c m\u00e1y t\u00ednh v\u00e0 thi\u1ebft b\u1ecb truy\u1ec1n th\u00f4ng r\u1ea5t l\u1edbn.<\/span><\/p>\n

\"bang-ascii-2\"<\/picture><\/p>\n

Nh\u1eadn th\u1ea5y nhu c\u1ea7u c\u1ea5p thi\u1ebft n\u00e0y, m\u1ed9t nh\u00f3m c\u00e1c chuy\u00ean gia t\u1eeb American Standards Association, ASA \u0111\u00e3 c\u00f9ng nhau ph\u00e1t tri\u1ec3n n\u00ean m\u1ed9t h\u1ec7 th\u1ed1ng truy\u1ec1n t\u1ea3i th\u00f4ng tin. Phi\u00ean b\u1ea3n \u0111\u1ea7u ti\u00ean c\u1ee7a ASCII 7-bit l\u00e0 d\u1ea1ng ti\u00eau chu\u1ea9n nh\u1ea5t, n\u00f3 c\u0169ng c\u00f3 128 k\u00fd t\u1ef1, bao g\u1ed3m 33 k\u00fd t\u1ef1 \u0111i\u1ec1u khi\u1ec3n (control characters) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m so\u00e1t thi\u1ebft b\u1ecb in v\u00e0 truy\u1ec1n th\u00f4ng.<\/span><\/p>\n

\u0110\u1ebfn nh\u1eefng n\u0103m 1980, phi\u00ean b\u1ea3n m\u1edf r\u1ed9ng c\u1ee7a ASCII 8-bit c\u00f3 th\u00eam 128 k\u00fd t\u1ef1 n\u1eefa, t\u1ea1o th\u00e0nh t\u1ed5ng c\u1ed9ng 256 k\u00fd t\u1ef1. Tuy nhi\u00ean, ph\u1ea7n n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ed3ng nh\u1ea5t v\u00e0 kh\u00f4ng c\u00f3 chu\u1ea9n c\u1ee5 th\u1ec3. V\u00e0 trong su\u1ed1t qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n n\u00e0y, ASCII \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t chu\u1ea9n qu\u1ed1c t\u1ebf. N\u00f3 \u0111\u00e3 l\u00e0m c\u01a1 s\u1edf cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c b\u1ea3ng m\u00e3 m\u00e3 h\u00f3a k\u00fd t\u1ef1 m\u1edf r\u1ed9ng nh\u01b0 Unicode. V\u1edbi kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 m\u1ed9t lo\u1ea1t c\u00e1c ng\u00f4n ng\u1eef v\u00e0 k\u00fd t\u1ef1 tr\u00ean th\u1ebf gi\u1edbi.<\/span><\/p>\n

B\u1ea3ng m\u00e3 ASCII c\u00f3 vai tr\u00f2 nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h2>\n

D\u1ef1a v\u00e0o qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh \u1edf tr\u00ean, ch\u00fang ta c\u0169ng \u0111\u00e3 th\u1ea5y \u0111\u01b0\u1ee3c b\u1ea3ng code ASCII \u0111\u00f3ng m\u1ed9t vai tr\u00f2 r\u1ea5t l\u1edbn trong l\u1ecbch s\u1eed truy\u1ec1n th\u00f4ng th\u00f4ng tin. N\u00f3 \u0111\u01b0\u1ee3c xem l\u00e0 \u201cc\u1ed9i ngu\u1ed3n\u201d c\u1ee7a code, \u0111\u1ec3 t\u1eeb \u0111\u00f3 ch\u00fang ta c\u00f3 th\u1ec3 v\u1eadn d\u1ee5ng v\u00e0 ph\u00e1t tri\u1ec3n n\u00ean m\u1ed9t n\u1ec1n v\u0103n minh c\u00f4ng ngh\u1ec7 t\u1ed1t h\u01a1n n\u1eefa. C\u1ee5 th\u1ec3 v\u1ec1 c\u00f4ng d\u1ee5ng c\u1ee7a <\/span>b\u1ea3ng ASCII<\/b> s\u1ebd \u0111\u01b0\u1ee3c Ho\u00e0ng H\u00e0 Mobile chia s\u1ebb ngay sau \u0111\u00e2y.<\/span><\/p>\n

Bi\u1ec3u di\u1ec5n k\u00fd t\u1ef1 v\u0103n b\u1ea3n<\/b><\/h3>\n

ASCII cung c\u1ea5p m\u1ed9t chu\u1ea9n h\u00f3a qu\u1ed1c t\u1ebf \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1c k\u00fd t\u1ef1 v\u0103n b\u1ea3n c\u01a1 b\u1ea3n. D\u1ef1a v\u00e0o \u0111\u00e2y s\u1ebd g\u00f3p ph\u1ea7n l\u00e0m \u0111\u1ea3m b\u1ea3o s\u1ef1 \u0111\u1ed3ng nh\u1ea5t trong vi\u1ec7c tr\u00ecnh b\u00e0y c\u1ee7a c\u00e1c k\u00fd t\u1ef1 tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng v\u00e0 h\u1ec7 th\u1ed1ng kh\u00e1c nhau. \u0110\u1ed3ng th\u1eddi, ASCII c\u00f2n t\u1ea1o ra m\u1ed9t li\u00ean k\u1ebft gi\u1eefa c\u00e1c k\u00fd t\u1ef1 v\u00e0 m\u00e3 s\u1ed1 nguy\u00ean t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ch\u00fang. Ch\u00ednh v\u00ec v\u1eady m\u00e0 h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh m\u1edbi d\u1ec5 d\u00e0ng hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u m\u00e0 l\u1eadp tr\u00ecnh vi\u00ean mu\u1ed1n th\u1ec3 hi\u1ec7n.<\/span><\/p>\n

\"bang-ascii-3\"<\/picture><\/p>\n

\u0110\u1eb7c bi\u1ec7t trong l\u1eadp tr\u00ecnh m\u00e1y t\u00ednh, ASCII \u0111\u01b0\u1ee3c xem l\u00e0 c\u01a1 b\u1ea3n chu\u1ea9n quy \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u. C\u00e1c h\u00e0m v\u00e0 ph\u01b0\u01a1ng th\u1ee9c th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u00e3 ASCII \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c nh\u01b0 so s\u00e1nh, t\u00ecm ki\u1ebfm v\u00e0 s\u1eafp x\u1ebfp chu\u1ed7i. Ch\u01b0a k\u1ec3 \u0111\u1ebfn, ASCII c\u0169ng \u0111\u00e3 t\u1ea1o ra m\u1ed9t c\u01a1 s\u1edf di \u0111\u1ed9ng, d\u1ec5 m\u1edf r\u1ed9ng cho vi\u1ec7c th\u00eam v\u00e0o c\u00e1c k\u00fd t\u1ef1 v\u00e0 ng\u00f4n ng\u1eef m\u1edbi. Nh\u1edd v\u00e0o \u0111\u00f3 \u0111\u00e3 l\u00e0m cho n\u00f3 ph\u1ed5 bi\u1ebfn tr\u00ean to\u00e0n th\u1ebf gi\u1edbi v\u00e0 d\u1ec5 d\u00e0ng t\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh, c\u0169ng nh\u01b0 ng\u00f4n ng\u1eef kh\u00e1c nhau.<\/span><\/p>\n

\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb<\/b><\/h3>\n

C\u00e1c k\u00fd t\u1ef1 \u0111i\u1ec1u khi\u1ec3n trong <\/span>b\u1ea3ng ASCII<\/b> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m so\u00e1t v\u00e0 qu\u1ea3n l\u00fd lu\u1ed3ng d\u1eef li\u1ec7u gi\u1eefa m\u00e1y t\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi. Ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y in, terminal, ho\u1eb7c thi\u1ebft b\u1ecb truy\u1ec1n th\u00f4ng. Theo \u0111\u00f3, c\u00e1c l\u1ec7nh \u0111i\u1ec1u khi\u1ec3n n\u00e0y gi\u00fap \u0111\u1ecbnh h\u00ecnh c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i v\u00e0 x\u1eed l\u00fd.<\/span><\/p>\n

\"bang-ascii-4\"<\/picture><\/p>\n

B\u00ean c\u1ea1nh \u0111\u00f3, nh\u1edd v\u00e0o c\u00e1c giao th\u1ee9c \u0111\u1eb7c bi\u1ec7t nh\u01b0 RS-232, c\u00e1c thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd k\u1ebft n\u1ed1i m\u1ed9t c\u00e1ch ch\u1eb7t ch\u1ebd v\u1edbi nhau. C\u00e1c l\u1ec7nh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i, ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 truy\u1ec1n v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c li\u00ean quan \u0111\u1ebfn truy\u1ec1n th\u00f4ng d\u1eef li\u1ec7u.<\/span><\/p>\n

\u0110\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng terminal, c\u00e1c k\u00fd t\u1ef1 \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c nh\u01b0 x\u00f3a m\u00e0n h\u00ecnh, di chuy\u1ec3n con tr\u1ecf, v\u00e0 \u0111\u1eb7t thu\u1ed9c t\u00ednh hi\u1ec3n th\u1ecb. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u1ea1o ra c\u00e1c giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c hi\u1ec7u qu\u1ea3 h\u01a1n bao gi\u1edd h\u1ebft.<\/span><\/p>\n

C\u01a1 s\u1edf cho c\u00e1c b\u1ea3ng m\u00e3 m\u1edf r\u1ed9ng<\/b><\/h3>\n

Nh\u01b0 th\u00f4ng tin \u1edf ph\u1ea7n kh\u00e1i ni\u1ec7m, Ho\u00e0ng H\u00e0 Mobile c\u0169ng c\u00f3 chia s\u1ebb v\u1ec1 t\u1ea7m quan tr\u1ecdng c\u1ee7a ASCII l\u00e0 m\u1ed9t chu\u1ea9n h\u00f3a \u201cc\u1ed9i ngu\u1ed3n\u201d. Hay n\u00f3i theo c\u00e1ch kh\u00e1c, ASCII cung c\u1ea5p m\u1ed9t ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng ngh\u1ec7 c\u00f3 th\u1ec3 \u0111\u1ecdc v\u00e0 x\u1eed l\u00fd \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u. N\u00f3 c\u0169ng t\u1ef1 nh\u01b0 c\u00e1ch c\u00f3 b\u1ea3ng ch\u1eef c\u00e1i \u0111\u1ec3 con ng\u01b0\u1eddi m\u1edbi giao ti\u1ebfp v\u1edbi nhau th\u00e0nh c\u00f4ng.<\/span><\/p>\n

\"bang-ascii-5\"<\/picture><\/p>\n

\u0110\u1ed3ng th\u1eddi, c\u0169ng b\u1edfi v\u00ec ASCII ch\u1ec9 s\u1eed d\u1ee5ng 7 bit trong m\u1ed7i byte \u0111\u1ec3 bi\u1ec3u di\u1ec5n k\u00fd t\u1ef1, \u0111i\u1ec1u n\u00e0y t\u1ea1o ra 1 bit r\u1ed7ng \u0111\u1ec3 m\u1edf r\u1ed9ng. N\u00f3 \u0111\u00e3 m\u1edf \u0111\u01b0\u1eddng cho vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c b\u1ea3ng m\u00e3 m\u1edf r\u1ed9ng nh\u01b0 ISO-8859 v\u00e0 Unicode, n\u01a1i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng 8 bit \u0111\u1ec3 bi\u1ec3u di\u1ec5n nhi\u1ec1u k\u00fd t\u1ef1 h\u01a1n.<\/span><\/p>\n

B\u1ea3ng m\u00e3 ASCII \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong l\u0129nh v\u1ef1c n\u00e0o?<\/b><\/h2>\n

V\u1edbi t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a c\u00f4ng ngh\u1ec7, <\/span>b\u1ea3ng ASCII <\/b>ng\u00e0y c\u00e0ng c\u00f3 \u1ee9ng d\u1ee5ng cao. N\u00f3 kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh hay c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n kh\u00e1c. Th\u1eadm ch\u00ed, nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f2n d\u00f9ng ASCII \u0111\u00e3 t\u0103ng s\u1ef1 giao ti\u1ebfp gi\u1eefa thi\u1ebft b\u1ecb v\u1edbi ng\u01b0\u1eddi d\u00f9ng, t\u1eeb d\u00f2ng l\u1ec7nh \u0111\u1ebfn c\u1eeda s\u1ed5 v\u0103n b\u1ea3n tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/span><\/p>\n

\"bang-ascii-6\"<\/picture><\/p>\n

Song song \u0111\u00f3, trong l\u1eadp tr\u00ecnh m\u1ea1ng ASCII th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bi\u1ec3u di\u1ec5n y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i trong c\u00e1c giao th\u1ee9c nh\u01b0 HTTP v\u00e0 SMTP. N\u00f3 gi\u00fap cho c\u00e1c thi\u1ebft b\u1ecb hi\u1ec3u \u0111\u01b0\u1ee3c chu\u1ea9n k\u1ebft n\u1ed1i v\u00e0 \u0111\u00e1p \u1ee9ng l\u1ea1i kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1i \u01b0u nh\u1ea5t.<\/span><\/p>\n

\u0110\u1eb7c bi\u1ec7t nh\u1ea5t, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ed9t k\u1ef7 nguy\u00ean ROBOT \u0111\u01b0\u1ee3c xem l\u00e0 d\u1ef1a v\u00e0o s\u1ef1 \u0111\u00f3ng g\u00f3p c\u1ee7a <\/span>b\u1ea3ng m\u00e3 ASCII<\/b>. Theo \u0111\u00f3, ASCII s\u1ebd \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a robot, n\u01a1i n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1eedi l\u1ec7nh v\u00e0 ki\u1ec3m so\u00e1t gi\u1eefa m\u00e1y t\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb li\u00ean quan.<\/span><\/p>\n

T\u1ed5ng h\u1ee3p m\u00e3 Ascii ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay<\/b><\/h2>\n

\u0110\u1ebfn hi\u1ec7n t\u1ea1i, m\u00e3 ASCII \u0111\u00e3 c\u00f3 r\u1ea5t nhi\u1ec1u bi\u1ebfn th\u1ec3 kh\u00e1c nhau v\u00e0 trong b\u00e0i vi\u1ebft n\u00e0y Ho\u00e0ng H\u00e0 Mobile ch\u1ec9 t\u1ed5ng h\u1ee3p cho b\u1ea1n nh\u1eefng b\u1ea3ng m\u00e3 \u0111\u01b0\u1ee3c xem l\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t. D\u1ef1a v\u00e0o nh\u1eefng b\u1ea3ng m\u00e3 n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng v\u00e0o qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp, c\u0169ng nh\u01b0 l\u00e0m vi\u1ec7c c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch chu\u1ea9n nh\u1ea5t.<\/span><\/p>\n

M\u00e3 ASCII kh\u00f4ng in \u0111\u01b0\u1ee3c<\/b><\/h3>\n

\u0110\u00fang nh\u01b0 t\u00ean g\u1ecdi, c\u00e1c k\u00fd t\u1ef1 trong m\u00e3 ASCII kh\u00f4ng in \u0111\u01b0\u1ee3c s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea5p quy\u1ec1n in ra d\u00f9 cho \u1edf b\u1ea5t k\u1ef3 h\u00ecnh th\u1ee9c n\u00e0o, k\u1ec3 c\u1ea3 h\u00ecnh d\u1ea1ng h\u00ecnh v\u1ebd tr\u1ef1c ti\u1ebfp tr\u00ean gi\u1ea5y ho\u1eb7c m\u00e0n h\u00ecnh. Nh\u1eefng k\u00fd t\u1ef1 n\u00e0y ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng \u0111i\u1ec1u khi\u1ec3n nh\u01b0 xu\u1ed1ng d\u00f2ng (LF), v\u1ec1 \u0111\u1ea7u d\u00f2ng (CR), x\u00f3a m\u00e0n h\u00ecnh, v\u00e0 \u0111i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb. Ch\u00fang th\u01b0\u1eddng kh\u00f4ng c\u00f3 bi\u1ec3u t\u01b0\u1ee3ng ho\u1eb7c bi\u1ec3u \u0111\u1ed3 \u0111\u1ea1i di\u1ec7n tr\u1ef1c ti\u1ebfp tr\u00ean m\u00e0n h\u00ecnh, v\u00ec v\u1eady vi\u1ec7c in \u1ea5n ch\u00fang kh\u00f4ng mang l\u1ea1i \u0111\u1ea7u ra c\u00f3 \u00fd ngh\u0129a cho ng\u01b0\u1eddi \u0111\u1ecdc.<\/span><\/p>\n

\"bang-ascii-7\"<\/picture><\/p>\n

M\u1eb7c d\u00f9 kh\u00f4ng in \u0111\u01b0\u1ee3c, nh\u01b0ng nh\u1eefng k\u00fd t\u1ef1 n\u00e0y \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 ki\u1ec3m so\u00e1t lu\u1ed3ng d\u1eef li\u1ec7u, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong vi\u1ec7c giao ti\u1ebfp gi\u1eefa m\u00e1y t\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi l\u1eadp tr\u00ecnh, ch\u00fang c\u0169ng l\u00e0 c\u00e1c ph\u1ea7n quan tr\u1ecdng c\u1ee7a m\u00e3 ngu\u1ed3n, gi\u00fap ki\u1ec3m so\u00e1t v\u00e0 \u0111\u1ecbnh h\u00ecnh c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 hi\u1ec3n th\u1ecb.<\/span><\/p>\n

H\u1ec7 th\u1eadp ph\u00e2n t\u1eeb 0 \u0111\u1ebfn 10<\/strong><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u1ec7 th\u1eadp ph\u00e2n<\/b><\/td>\nH\u1ec7 nh\u1ecb ph\u00e2n<\/b><\/td>\nH\u1ec7 th\u1eadp l\u1ee5c ph\u00e2n<\/b><\/td>\nHTML<\/b><\/td>\nVi\u1ebft t\u1eaft<\/b><\/td>\nTruy nh\u1eadp b\u00e0n ph\u00edm<\/b><\/td>\nT\u00ean\/ \u00dd ngh\u0129a<\/b><\/td>\n<\/tr>\n
0<\/span><\/td>\n000 0000<\/span><\/td>\n0<\/span><\/td>\n<\/td>\nNUL<\/span><\/td>\n^@<\/span><\/td>\nK\u00fd t\u1ef1 r\u1ed7ng<\/span><\/td>\n<\/tr>\n
1<\/span><\/td>\n000 0001<\/span><\/td>\n1<\/span><\/td>\n&#1;<\/span><\/td>\nSOH<\/span><\/td>\n^A<\/span><\/td>\nB\u1eaft \u0111\u1ea7u Header<\/span><\/td>\n<\/tr>\n
2<\/span><\/td>\n000 0010<\/span><\/td>\n2<\/span><\/td>\n&#2;<\/span><\/td>\nSTX<\/span><\/td>\n^B<\/span><\/td>\nB\u1eaft \u0111\u1ea7u v\u0103n b\u1ea3n<\/span><\/td>\n<\/tr>\n
3<\/span><\/td>\n000 0011<\/span><\/td>\n3<\/span><\/td>\n&#3;<\/span><\/td>\nETX<\/span><\/td>\n^C<\/span><\/td>\nK\u1ebft th\u00fac v\u0103n b\u1ea3n<\/span><\/td>\n<\/tr>\n
4<\/span><\/td>\n000 0100<\/span><\/td>\n4<\/span><\/td>\n&#4;<\/span><\/td>\nEOT<\/span><\/td>\n^D<\/span><\/td>\nK\u1ebft th\u00fac truy\u1ec1n<\/span><\/td>\n<\/tr>\n
5<\/span><\/td>\n000 0101<\/span><\/td>\n5<\/span><\/td>\n&#5;<\/span><\/td>\nENQ<\/span><\/td>\n^E<\/span><\/td>\nTruy v\u1ea5n<\/span><\/td>\n<\/tr>\n
6<\/span><\/td>\n000 0110<\/span><\/td>\n6<\/span><\/td>\n&#6;<\/span><\/td>\nACK<\/span><\/td>\n^F<\/span><\/td>\nS\u1ef1 c\u00f4ng nh\u1eadn<\/span><\/td>\n<\/tr>\n
7<\/span><\/td>\n000 0111<\/span><\/td>\n7<\/span><\/td>\n&#7;<\/span><\/td>\nBEL<\/span><\/td>\n^G<\/span><\/td>\nTi\u1ebfng k\u00eau<\/span><\/td>\n<\/tr>\n
8<\/span><\/td>\n000 1000<\/span><\/td>\n8<\/span><\/td>\n&#8;<\/span><\/td>\nBS<\/span><\/td>\n^H<\/span><\/td>\nXo\u00e1 ng\u01b0\u1ee3c<\/span><\/td>\n<\/tr>\n
9<\/span><\/td>\n000 1001<\/span><\/td>\n9<\/span><\/td>\n<\/td>\nHT<\/span><\/td>\n^I<\/span><\/td>\nTh\u1ebb ngang<\/span><\/td>\n<\/tr>\n
10<\/span><\/td>\n000 1010<\/span><\/td>\n0A<\/span><\/td>\n<\/td>\nLF<\/span><\/td>\n^J<\/span><\/td>\nXu\u1ed1ng d\u00f2ng m\u1edbi<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

H\u1ec7 th\u1eadp ph\u00e2n t\u1eeb 11 \u0111\u1ebfn 31, 127<\/strong><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u1ec7 th\u1eadp ph\u00e2n<\/b><\/td>\nH\u1ec7 nh\u1ecb ph\u00e2n<\/b><\/td>\nH\u1ec7 th\u1eadp l\u1ee5c ph\u00e2n<\/b><\/td>\nHTML<\/b><\/td>\nVi\u1ebft t\u1eaft<\/b><\/td>\nTruy nh\u1eadp b\u00e0n ph\u00edm<\/b><\/td>\nT\u00ean\/ \u00dd ngh\u0129a<\/b><\/td>\n<\/tr>\n
11<\/span><\/td>\n000 1011<\/span><\/td>\n0B<\/span><\/td>\n&#11;<\/span><\/td>\nVT<\/span><\/td>\n^K<\/span><\/td>\nTh\u1ebb d\u1ecdc<\/span><\/td>\n<\/tr>\n
12<\/span><\/td>\n000 1100<\/span><\/td>\n0C<\/span><\/td>\n&#12;<\/span><\/td>\nFF<\/span><\/td>\n^L<\/span><\/td>\nC\u1ea5p gi\u1ea5y<\/span><\/td>\n<\/tr>\n
13<\/span><\/td>\n000 1101<\/span><\/td>\n0D<\/span><\/td>\n<\/td>\nCR<\/span><\/td>\n^M<\/span><\/td>\nChuy\u1ec3n d\u00f2ng\/ Xu\u1ed1ng d\u00f2ng<\/span><\/td>\n<\/tr>\n
14<\/span><\/td>\n000 1110<\/span><\/td>\n0E<\/span><\/td>\n&#14;<\/span><\/td>\nSO<\/span><\/td>\n^N<\/span><\/td>\nNgo\u00e0i m\u00e3<\/span><\/td>\n<\/tr>\n
15<\/span><\/td>\n000 1111<\/span><\/td>\n0F<\/span><\/td>\n&#15;<\/span><\/td>\nSI<\/span><\/td>\n^O<\/span><\/td>\nM\u00e3 h\u00f3a\/Trong m\u00e3<\/span><\/td>\n<\/tr>\n
16<\/span><\/td>\n001 0000<\/span><\/td>\n10<\/span><\/td>\n&#16;<\/span><\/td>\nDLE<\/span><\/td>\n^P<\/span><\/td>\nTho\u00e1t li\u00ean k\u1ebft d\u1eef li\u1ec7u<\/span><\/td>\n<\/tr>\n
17<\/span><\/td>\n001 0001<\/span><\/td>\n11<\/span><\/td>\n&#17;<\/span><\/td>\nDC1<\/span><\/td>\n^Q<\/span><\/td>\n\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb 1<\/span><\/td>\n<\/tr>\n
18<\/span><\/td>\n001 0010<\/span><\/td>\n12<\/span><\/td>\n&#18;<\/span><\/td>\nDC2<\/span><\/td>\n^R<\/span><\/td>\n\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb 2<\/span><\/td>\n<\/tr>\n
19<\/span><\/td>\n001 0011<\/span><\/td>\n13<\/span><\/td>\n&#19;<\/span><\/td>\nDC3<\/span><\/td>\n^S<\/span><\/td>\n\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb 3<\/span><\/td>\n<\/tr>\n
20<\/span><\/td>\n001 0100<\/span><\/td>\n14<\/span><\/td>\n&#20;<\/span><\/td>\nDC4<\/span><\/td>\n^T<\/span><\/td>\n\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb 4<\/span><\/td>\n<\/tr>\n
21<\/span><\/td>\n001 0101<\/span><\/td>\n15<\/span><\/td>\n&#21;<\/span><\/td>\nNAK<\/span><\/td>\n^U<\/span><\/td>\nTh\u00f4ng b\u00e1o c\u00f3 l\u1ed7i b\u00ean g\u1eedi<\/span><\/td>\n<\/tr>\n
22<\/span><\/td>\n001 0110<\/span><\/td>\n16<\/span><\/td>\n&#22;<\/span><\/td>\nSYN<\/span><\/td>\n^V<\/span><\/td>\nTh\u00f4ng b\u00e1o \u0111\u00e3 \u0111\u1ed3ng b\u1ed9<\/span><\/td>\n<\/tr>\n
23<\/span><\/td>\n001 0111<\/span><\/td>\n17<\/span><\/td>\n&#23;<\/span><\/td>\nETB<\/span><\/td>\n^W<\/span><\/td>\nK\u1ebft th\u00fac truy\u1ec1n tin<\/span><\/td>\n<\/tr>\n
24<\/span><\/td>\n001 1000<\/span><\/td>\n18<\/span><\/td>\n&#24;<\/span><\/td>\nCAN<\/span><\/td>\n^X<\/span><\/td>\nH\u1ee7y<\/span><\/td>\n<\/tr>\n
25<\/span><\/td>\n001 1001<\/span><\/td>\n19<\/span><\/td>\n&#25;<\/span><\/td>\nEM<\/span><\/td>\n^Y<\/span><\/td>\nEnd of Medium<\/span><\/td>\n<\/tr>\n
26<\/span><\/td>\n001 1010<\/span><\/td>\n1A<\/span><\/td>\n&#26;<\/span><\/td>\nSUB<\/span><\/td>\n^Z<\/span><\/td>\nThay th\u1ebf<\/span><\/td>\n<\/tr>\n
27<\/span><\/td>\n001 1011<\/span><\/td>\n1B<\/span><\/td>\n&#27;<\/span><\/td>\nESC<\/span><\/td>\n^[ hay ESC<\/span><\/td>\nTho\u00e1t<\/span><\/td>\n<\/tr>\n
28<\/span><\/td>\n001 1100<\/span><\/td>\n1C<\/span><\/td>\n&#28;<\/span><\/td>\nFS<\/span><\/td>\n^\\<\/span><\/td>\nPh\u00e2n t\u00e1ch t\u1eadp tin<\/span><\/td>\n<\/tr>\n
29<\/span><\/td>\n001 1101<\/span><\/td>\n1D<\/span><\/td>\n&#29;<\/span><\/td>\nGS<\/span><\/td>\n^]<\/span><\/td>\nPh\u00e2n t\u00e1ch nh\u00f3m<\/span><\/td>\n<\/tr>\n
30<\/span><\/td>\n001 1110<\/span><\/td>\n1E<\/span><\/td>\n&#30;<\/span><\/td>\nRS<\/span><\/td>\n^^<\/span><\/td>\nPh\u00e2n t\u00e1ch b\u1ea3n ghi<\/span><\/td>\n<\/tr>\n
31<\/span><\/td>\n001 1111<\/span><\/td>\n1F<\/span><\/td>\n&#31;<\/span><\/td>\nUS<\/span><\/td>\n^_<\/span><\/td>\nPh\u00e2n t\u00e1ch \u0111\u01a1n v\u1ecb<\/span><\/td>\n<\/tr>\n
127<\/span><\/td>\n111 1111<\/span><\/td>\n7F<\/span><\/td>\n<\/span><\/td>\nDEL<\/span><\/td>\nDEL<\/span><\/td>\nX\u00f3a<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u00e3 ASCII in \u0111\u01b0\u1ee3c<\/b><\/h3>\n

Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi <\/span>b\u1ea3ng ASCII <\/b>kh\u00f4ng in \u0111\u01b0\u1ee3c, m\u00e3 ASCII in \u0111\u01b0\u1ee3c s\u1ebd cho ph\u00e9p nh\u1eefng k\u00fd t\u1ef1 c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb v\u00e0 in ra m\u00e0n h\u00ecnh ho\u1eb7c gi\u1ea5y. C\u00e1c k\u00fd t\u1ef1 trong ph\u1ea1m vi n\u00e0y th\u01b0\u1eddng c\u00f3 h\u00ecnh d\u1ea1ng v\u00e0 bi\u1ec3u t\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng. V\u00e0 trong <\/span>b\u1ea3ng m\u00e3 ASCII<\/b> in \u0111\u01b0\u1ee3c, m\u1ed9t s\u1ed1 k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t nh\u01b0 k\u00fd t\u1ef1 c\u00e1ch (space) c\u00f3 t\u00e1c d\u1ee5ng t\u1ea1o kho\u1ea3ng tr\u1eafng gi\u1eefa c\u00e1c t\u1eeb v\u00e0 c\u00e2u, c\u00f2n c\u00e1c ch\u1eef c\u00e1i v\u00e0 s\u1ed1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u00f4ng tin v\u1ec1 ng\u00f4n ng\u1eef v\u00e0 s\u1ed1 li\u1ec7u. C\u00e1c d\u1ea5u ch\u1ea5m c\u00e2u nh\u01b0 d\u1ea5u ch\u1ea5m v\u00e0 d\u1ea5u ph\u1ea9y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c bi\u1ec3u di\u1ec5n c\u00fa ph\u00e1p v\u00e0 ng\u1eef c\u1ea3nh trong v\u0103n b\u1ea3n.<\/span><\/p>\n

\"bang-ascii-8\"<\/picture><\/p>\n

B\u1ea3ng m\u00e3 ASCII<\/b> in \u0111\u01b0\u1ee3c kh\u00f4ng ch\u1ec9 l\u00e0 c\u01a1 s\u1edf cho vi\u1ec7c hi\u1ec3n th\u1ecb v\u0103n b\u1ea3n m\u00e0 c\u00f2n l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong l\u1eadp tr\u00ecnh. V\u1edbi s\u1ef1 s\u1eed d\u1ee5ng \u0111a d\u1ea1ng trong vi\u1ec7c t\u1ea1o ra giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng, in \u1ea5n, v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng x\u1eed l\u00fd v\u0103n b\u1ea3n. T\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a ASCII in \u0111\u01b0\u1ee3c gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c trao \u0111\u1ed5i th\u00f4ng tin v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ef1 t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 thi\u1ebft b\u1ecb.<\/span><\/p>\n

H\u1ec7 th\u1eadp ph\u00e2n t\u1eeb 32 \u0111\u1ebfn 80<\/strong><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u1ec7 th\u1eadp ph\u00e2n<\/b><\/td>\nH\u1ec7 nh\u1ecb ph\u00e2n<\/b><\/td>\nH\u1ec7 th\u1eadp l\u1ee5c ph\u00e2n<\/b><\/td>\nHTML<\/b><\/td>\n\u0110\u1ed3 h\u1ecda<\/b><\/td>\n<\/tr>\n
32<\/span><\/td>\n010 0000<\/span><\/td>\n20<\/span><\/td>\n<\/td>\nKho\u1ea3ng tr\u1ed1ng (Space)<\/span><\/td>\n<\/tr>\n
33<\/span><\/td>\n010 0001<\/span><\/td>\n21<\/span><\/td>\n!<\/span><\/td>\n!<\/span><\/td>\n<\/tr>\n
34<\/span><\/td>\n010 0010<\/span><\/td>\n22<\/span><\/td>\n“<\/span><\/td>\n“<\/span><\/td>\n<\/tr>\n
35<\/span><\/td>\n010 0011<\/span><\/td>\n23<\/span><\/td>\n#<\/span><\/td>\n#<\/span><\/td>\n<\/tr>\n
36<\/span><\/td>\n010 0100<\/span><\/td>\n24<\/span><\/td>\n$<\/span><\/td>\n$<\/span><\/td>\n<\/tr>\n
37<\/span><\/td>\n010 0101<\/span><\/td>\n25<\/span><\/td>\n%<\/span><\/td>\n%<\/span><\/td>\n<\/tr>\n
38<\/span><\/td>\n010 0110<\/span><\/td>\n26<\/span><\/td>\n&<\/span><\/td>\n&<\/span><\/td>\n<\/tr>\n
39<\/span><\/td>\n010 0111<\/span><\/td>\n27<\/span><\/td>\n‘<\/span><\/td>\n‘<\/span><\/td>\n<\/tr>\n
40<\/span><\/td>\n010 1000<\/span><\/td>\n28<\/span><\/td>\n(<\/span><\/td>\n(<\/span><\/td>\n<\/tr>\n
41<\/span><\/td>\n010 1001<\/span><\/td>\n29<\/span><\/td>\n)<\/span><\/td>\n)<\/span><\/td>\n<\/tr>\n
42<\/span><\/td>\n010 1010<\/span><\/td>\n2A<\/span><\/td>\n*<\/span><\/td>\n*<\/span><\/td>\n<\/tr>\n
43<\/span><\/td>\n010 1011<\/span><\/td>\n2B<\/span><\/td>\n+<\/span><\/td>\n+<\/span><\/td>\n<\/tr>\n
44<\/span><\/td>\n010 1100<\/span><\/td>\n2C<\/span><\/td>\n,<\/span><\/td>\n,<\/span><\/td>\n<\/tr>\n
45<\/span><\/td>\n010 1101<\/span><\/td>\n2D<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n<\/tr>\n
46<\/span><\/td>\n010 1110<\/span><\/td>\n2E<\/span><\/td>\n.<\/span><\/td>\n.<\/span><\/td>\n<\/tr>\n
47<\/span><\/td>\n010 1111<\/span><\/td>\n2F<\/span><\/td>\n\/<\/span><\/td>\n\/<\/span><\/td>\n<\/tr>\n
48<\/span><\/td>\n011 0000<\/span><\/td>\n30<\/span><\/td>\n0<\/span><\/td>\n0<\/span><\/td>\n<\/tr>\n
49<\/span><\/td>\n011 0001<\/span><\/td>\n31<\/span><\/td>\n1<\/span><\/td>\n1<\/span><\/td>\n<\/tr>\n
50<\/span><\/td>\n011 0010<\/span><\/td>\n32<\/span><\/td>\n2<\/span><\/td>\n2<\/span><\/td>\n<\/tr>\n
51<\/span><\/td>\n011 0011<\/span><\/td>\n33<\/span><\/td>\n3<\/span><\/td>\n3<\/span><\/td>\n<\/tr>\n
52<\/span><\/td>\n011 0100<\/span><\/td>\n34<\/span><\/td>\n4<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n
53<\/span><\/td>\n011 0101<\/span><\/td>\n35<\/span><\/td>\n5<\/span><\/td>\n5<\/span><\/td>\n<\/tr>\n
54<\/span><\/td>\n011 0110<\/span><\/td>\n36<\/span><\/td>\n6<\/span><\/td>\n6<\/span><\/td>\n<\/tr>\n
55<\/span><\/td>\n011 0111<\/span><\/td>\n37<\/span><\/td>\n7<\/span><\/td>\n7<\/span><\/td>\n<\/tr>\n
56<\/span><\/td>\n011 1000<\/span><\/td>\n38<\/span><\/td>\n8<\/span><\/td>\n8<\/span><\/td>\n<\/tr>\n
57<\/span><\/td>\n011 1001<\/span><\/td>\n39<\/span><\/td>\n9<\/span><\/td>\n9<\/span><\/td>\n<\/tr>\n
58<\/span><\/td>\n011 1010<\/span><\/td>\n3A<\/span><\/td>\n:<\/span><\/td>\n:<\/span><\/td>\n<\/tr>\n
59<\/span><\/td>\n011 1011<\/span><\/td>\n3B<\/span><\/td>\n;<\/span><\/td>\n;<\/span><\/td>\n<\/tr>\n
60<\/span><\/td>\n011 1100<\/span><\/td>\n3C<\/span><\/td>\n<<\/span><\/td>\n<<\/span><\/td>\n<\/tr>\n
61<\/span><\/td>\n011 1101<\/span><\/td>\n3D<\/span><\/td>\n=<\/span><\/td>\n=<\/span><\/td>\n<\/tr>\n
62<\/span><\/td>\n011 1110<\/span><\/td>\n3E<\/span><\/td>\n><\/span><\/td>\n><\/span><\/td>\n<\/tr>\n
63<\/span><\/td>\n011 1111<\/span><\/td>\n3F<\/span><\/td>\n?<\/span><\/td>\n?<\/span><\/td>\n<\/tr>\n
64<\/span><\/td>\n100 0000<\/span><\/td>\n40<\/span><\/td>\n@<\/span><\/td>\n@<\/span><\/td>\n<\/tr>\n
65<\/span><\/td>\n100 0001<\/span><\/td>\n41<\/span><\/td>\nA<\/span><\/td>\nA<\/span><\/td>\n<\/tr>\n
66<\/span><\/td>\n100 0010<\/span><\/td>\n42<\/span><\/td>\nB<\/span><\/td>\nB<\/span><\/td>\n<\/tr>\n
67<\/span><\/td>\n100 0011<\/span><\/td>\n43<\/span><\/td>\nC<\/span><\/td>\nC<\/span><\/td>\n<\/tr>\n
68<\/span><\/td>\n100 0100<\/span><\/td>\n44<\/span><\/td>\nD<\/span><\/td>\nD<\/span><\/td>\n<\/tr>\n
69<\/span><\/td>\n100 0101<\/span><\/td>\n45<\/span><\/td>\nE<\/span><\/td>\nE<\/span><\/td>\n<\/tr>\n
70<\/span><\/td>\n100 0110<\/span><\/td>\n46<\/span><\/td>\nF<\/span><\/td>\nF<\/span><\/td>\n<\/tr>\n
71<\/span><\/td>\n100 0111<\/span><\/td>\n47<\/span><\/td>\nG<\/span><\/td>\nG<\/span><\/td>\n<\/tr>\n
72<\/span><\/td>\n100 1000<\/span><\/td>\n48<\/span><\/td>\nH<\/span><\/td>\nH<\/span><\/td>\n<\/tr>\n
73<\/span><\/td>\n100 1001<\/span><\/td>\n49<\/span><\/td>\nI<\/span><\/td>\nI<\/span><\/td>\n<\/tr>\n
74<\/span><\/td>\n100 1010<\/span><\/td>\n4A<\/span><\/td>\nJ<\/span><\/td>\nJ<\/span><\/td>\n<\/tr>\n
75<\/span><\/td>\n100 1011<\/span><\/td>\n4B<\/span><\/td>\nK<\/span><\/td>\nK<\/span><\/td>\n<\/tr>\n
76<\/span><\/td>\n100 1100<\/span><\/td>\n4C<\/span><\/td>\nL<\/span><\/td>\nL<\/span><\/td>\n<\/tr>\n
77<\/span><\/td>\n100 1101<\/span><\/td>\n4D<\/span><\/td>\nM<\/span><\/td>\nM<\/span><\/td>\n<\/tr>\n
78<\/span><\/td>\n100 1110<\/span><\/td>\n4E<\/span><\/td>\nN<\/span><\/td>\nN<\/span><\/td>\n<\/tr>\n
79<\/span><\/td>\n100 1111<\/span><\/td>\n4F<\/span><\/td>\nO<\/span><\/td>\nO<\/span><\/td>\n<\/tr>\n
80<\/span><\/td>\n101 0000<\/span><\/td>\n50<\/span><\/td>\nP<\/span><\/td>\nP<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

H\u1ec7 th\u1eadp ph\u00e2n t\u1eeb 81 \u0111\u1ebfn 126<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u1ec7 th\u1eadp ph\u00e2n<\/b><\/td>\nH\u1ec7 nh\u1ecb ph\u00e2n<\/b><\/td>\nH\u1ec7 th\u1eadp l\u1ee5c ph\u00e2n<\/b><\/td>\nHTML<\/b><\/td>\n\u0110\u1ed3 h\u1ecda<\/b><\/td>\n<\/tr>\n
81<\/span><\/td>\n101 0001<\/span><\/td>\n51<\/span><\/td>\nQ<\/span><\/td>\nQ<\/span><\/td>\n<\/tr>\n
82<\/span><\/td>\n101 0010<\/span><\/td>\n52<\/span><\/td>\nR<\/span><\/td>\nR<\/span><\/td>\n<\/tr>\n
83<\/span><\/td>\n101 0011<\/span><\/td>\n53<\/span><\/td>\nS<\/span><\/td>\nS<\/span><\/td>\n<\/tr>\n
84<\/span><\/td>\n101 0100<\/span><\/td>\n54<\/span><\/td>\nT<\/span><\/td>\nT<\/span><\/td>\n<\/tr>\n
85<\/span><\/td>\n101 0101<\/span><\/td>\n55<\/span><\/td>\nU<\/span><\/td>\nU<\/span><\/td>\n<\/tr>\n
86<\/span><\/td>\n101 0110<\/span><\/td>\n56<\/span><\/td>\nV<\/span><\/td>\nV<\/span><\/td>\n<\/tr>\n
87<\/span><\/td>\n101 0111<\/span><\/td>\n57<\/span><\/td>\nW<\/span><\/td>\nW<\/span><\/td>\n<\/tr>\n
88<\/span><\/td>\n101 1000<\/span><\/td>\n58<\/span><\/td>\nX<\/span><\/td>\nX<\/span><\/td>\n<\/tr>\n
89<\/span><\/td>\n101 1001<\/span><\/td>\n59<\/span><\/td>\nY<\/span><\/td>\nY<\/span><\/td>\n<\/tr>\n
90<\/span><\/td>\n101 1010<\/span><\/td>\n5A<\/span><\/td>\nZ<\/span><\/td>\nZ<\/span><\/td>\n<\/tr>\n
91<\/span><\/td>\n101 1011<\/span><\/td>\n5B<\/span><\/td>\n[<\/span><\/td>\n[<\/span><\/td>\n<\/tr>\n
92<\/span><\/td>\n101 1100<\/span><\/td>\n5C<\/span><\/td>\n\\<\/span><\/td>\n\\<\/span><\/td>\n<\/tr>\n
93<\/span><\/td>\n101 1101<\/span><\/td>\n5D<\/span><\/td>\n]<\/span><\/td>\n]<\/span><\/td>\n<\/tr>\n
94<\/span><\/td>\n101 1110<\/span><\/td>\n5E<\/span><\/td>\n^<\/span><\/td>\n^<\/span><\/td>\n<\/tr>\n
95<\/span><\/td>\n101 1111<\/span><\/td>\n5F<\/span><\/td>\n_<\/span><\/td>\n_<\/span><\/td>\n<\/tr>\n
96<\/span><\/td>\n110 0000<\/span><\/td>\n60<\/span><\/td>\n`<\/span><\/td>\n`<\/span><\/td>\n<\/tr>\n
97<\/span><\/td>\n110 0001<\/span><\/td>\n61<\/span><\/td>\na<\/span><\/td>\na<\/span><\/td>\n<\/tr>\n
98<\/span><\/td>\n110 0010<\/span><\/td>\n62<\/span><\/td>\nb<\/span><\/td>\nb<\/span><\/td>\n<\/tr>\n
99<\/span><\/td>\n110 0011<\/span><\/td>\n63<\/span><\/td>\nc<\/span><\/td>\nc<\/span><\/td>\n<\/tr>\n
100<\/span><\/td>\n110 0100<\/span><\/td>\n64<\/span><\/td>\nd<\/span><\/td>\nd<\/span><\/td>\n<\/tr>\n
101<\/span><\/td>\n110 0101<\/span><\/td>\n65<\/span><\/td>\ne<\/span><\/td>\ne<\/span><\/td>\n<\/tr>\n
102<\/span><\/td>\n110 0110<\/span><\/td>\n66<\/span><\/td>\nf<\/span><\/td>\nf<\/span><\/td>\n<\/tr>\n
103<\/span><\/td>\n110 0111<\/span><\/td>\n67<\/span><\/td>\ng<\/span><\/td>\ng<\/span><\/td>\n<\/tr>\n
104<\/span><\/td>\n110 1000<\/span><\/td>\n68<\/span><\/td>\nh<\/span><\/td>\nh<\/span><\/td>\n<\/tr>\n
105<\/span><\/td>\n110 1001<\/span><\/td>\n69<\/span><\/td>\ni<\/span><\/td>\ni<\/span><\/td>\n<\/tr>\n
106<\/span><\/td>\n110 1010<\/span><\/td>\n6A<\/span><\/td>\nj<\/span><\/td>\nj<\/span><\/td>\n<\/tr>\n
107<\/span><\/td>\n110 1011<\/span><\/td>\n6B<\/span><\/td>\nk<\/span><\/td>\nk<\/span><\/td>\n<\/tr>\n
108<\/span><\/td>\n110 1100<\/span><\/td>\n6C<\/span><\/td>\nl<\/span><\/td>\nl<\/span><\/td>\n<\/tr>\n
109<\/span><\/td>\n110 1101<\/span><\/td>\n6D<\/span><\/td>\nm<\/span><\/td>\nm<\/span><\/td>\n<\/tr>\n
110<\/span><\/td>\n110 1110<\/span><\/td>\n6E<\/span><\/td>\nn<\/span><\/td>\nn<\/span><\/td>\n<\/tr>\n
111<\/span><\/td>\n110 1111<\/span><\/td>\n6F<\/span><\/td>\no<\/span><\/td>\no<\/span><\/td>\n<\/tr>\n
112<\/span><\/td>\n111 0000<\/span><\/td>\n70<\/span><\/td>\np<\/span><\/td>\np<\/span><\/td>\n<\/tr>\n
113<\/span><\/td>\n111 0001<\/span><\/td>\n71<\/span><\/td>\nq<\/span><\/td>\nq<\/span><\/td>\n<\/tr>\n
114<\/span><\/td>\n111 0010<\/span><\/td>\n72<\/span><\/td>\nr<\/span><\/td>\nr<\/span><\/td>\n<\/tr>\n
115<\/span><\/td>\n111 0011<\/span><\/td>\n73<\/span><\/td>\ns<\/span><\/td>\ns<\/span><\/td>\n<\/tr>\n
116<\/span><\/td>\n111 0100<\/span><\/td>\n74<\/span><\/td>\nt<\/span><\/td>\nt<\/span><\/td>\n<\/tr>\n
117<\/span><\/td>\n111 0101<\/span><\/td>\n75<\/span><\/td>\nu<\/span><\/td>\nu<\/span><\/td>\n<\/tr>\n
118<\/span><\/td>\n111 0110<\/span><\/td>\n76<\/span><\/td>\nv<\/span><\/td>\nv<\/span><\/td>\n<\/tr>\n
119<\/span><\/td>\n111 0111<\/span><\/td>\n77<\/span><\/td>\nw<\/span><\/td>\nw<\/span><\/td>\n<\/tr>\n
120<\/span><\/td>\n111 1000<\/span><\/td>\n78<\/span><\/td>\nx<\/span><\/td>\nx<\/span><\/td>\n<\/tr>\n
121<\/span><\/td>\n111 1001<\/span><\/td>\n79<\/span><\/td>\ny<\/span><\/td>\ny<\/span><\/td>\n<\/tr>\n
122<\/span><\/td>\n111 1010<\/span><\/td>\n7A<\/span><\/td>\nz<\/span><\/td>\nz<\/span><\/td>\n<\/tr>\n
123<\/span><\/td>\n111 1011<\/span><\/td>\n7B<\/span><\/td>\n{<\/span><\/td>\n{<\/span><\/td>\n<\/tr>\n
124<\/span><\/td>\n111 1100<\/span><\/td>\n7C<\/span><\/td>\n|<\/span><\/td>\n|<\/span><\/td>\n<\/tr>\n
125<\/span><\/td>\n111 1101<\/span><\/td>\n7D<\/span><\/td>\n}<\/span><\/td>\n}<\/span><\/td>\n<\/tr>\n
126<\/span><\/td>\n111 1110<\/span><\/td>\n7E<\/span><\/td>\n~<\/span><\/td>\n~<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u00e3 ASCII m\u1edf r\u1ed9ng<\/b><\/h3>\n

C\u00e1c th\u00f4ng tin \u1edf tr\u00ean Ho\u00e0ng H\u00e0 Mobile \u0111\u00e3 nh\u1eafc \u0111\u1ebfn t\u1eeb kh\u00f3a \u201c<\/span>B\u1ea3ng ASCII m\u1edf r\u1ed9ng<\/b>\u201d kh\u00e1 nhi\u1ec1u. V\u00e0 ngay b\u00ean d\u01b0\u1edbi \u0111\u00e2y, ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n c\u00e1c k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t trong b\u1ea3ng m\u00e3 n\u00e0y l\u00e0 nh\u01b0 th\u1ebf n\u00e0o nh\u00e9. Theo \u0111\u00f3, m\u00e3 ASCII m\u1edf r\u1ed9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 m\u00e3 h\u00f3a nh\u01b0 ISO-8859, v\u1edbi c\u00e1c phi\u00ean b\u1ea3n nh\u01b0 ISO-8859-1 cho ch\u00e2u \u00c2u v\u00e0 ISO-8859-2 cho Trung \u00c2u.<\/span><\/p>\n

\"bang-ascii-9\"<\/picture><\/p>\n

M\u1ed9t \u01b0u \u0111i\u1ec3m quan tr\u1ecdng c\u1ee7a ASCII m\u1edf r\u1ed9ng l\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 nhi\u1ec1u ng\u00f4n ng\u1eef v\u00e0 k\u00fd t\u1ef1 trong m\u1ed9t b\u1ea3ng m\u00e3 duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u1ea1o ra m\u1ed9t chu\u1ea9n qu\u1ed1c t\u1ebf cho vi\u1ec7c trao \u0111\u1ed5i th\u00f4ng tin v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi ng\u01b0\u1eddi d\u00f9ng tr\u00ean to\u00e0n c\u1ea7u. M\u00e3 ASCII m\u1edf r\u1ed9ng c\u0169ng l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c h\u1ec7 th\u1ed1ng m\u00e3 h\u00f3a ti\u00ean ti\u1ebfn h\u01a1n.<\/span><\/p>\n

H\u1ec7 th\u1eadp ph\u00e2n t\u1eeb 128 \u0111\u1ebfn 200<\/strong><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u1ec7 th\u1eadp ph\u00e2n<\/b><\/td>\nH\u1ec7 nh\u1ecb ph\u00e2n<\/b><\/td>\nH\u1ec7 th\u1eadp l\u1ee5c ph\u00e2n<\/b><\/td>\nHTML<\/b><\/td>\nK\u00fd t\u1ef1<\/b><\/td>\n<\/tr>\n
128<\/span><\/td>\n10000000<\/span><\/td>\n0x80<\/span><\/td>\n\u20ac<\/span><\/td>\n\u20ac<\/span><\/td>\n<\/tr>\n
129<\/span><\/td>\n10000001<\/span><\/td>\n0x81<\/span><\/td>\n\u0081<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
130<\/span><\/td>\n10000010<\/span><\/td>\n0x82<\/span><\/td>\n\u201a<\/span><\/td>\n\u201a<\/span><\/td>\n<\/tr>\n
131<\/span><\/td>\n10000011<\/span><\/td>\n0x83<\/span><\/td>\n\u0192<\/span><\/td>\n\u0192<\/span><\/td>\n<\/tr>\n
132<\/span><\/td>\n10000100<\/span><\/td>\n0x84<\/span><\/td>\n\u201e<\/span><\/td>\n\u201e<\/span><\/td>\n<\/tr>\n
133<\/span><\/td>\n10000101<\/span><\/td>\n0x85<\/span><\/td>\n\u2026<\/span><\/td>\n\u2026<\/span><\/td>\n<\/tr>\n
134<\/span><\/td>\n10000110<\/span><\/td>\n0x86<\/span><\/td>\n\u2020<\/span><\/td>\n\u2020<\/span><\/td>\n<\/tr>\n
135<\/span><\/td>\n10000111<\/span><\/td>\n0x87<\/span><\/td>\n\u2021<\/span><\/td>\n\u2021<\/span><\/td>\n<\/tr>\n
136<\/span><\/td>\n10001000<\/span><\/td>\n0x88<\/span><\/td>\n\u02c6<\/span><\/td>\n\u02c6<\/span><\/td>\n<\/tr>\n
137<\/span><\/td>\n10001001<\/span><\/td>\n0x89<\/span><\/td>\n\u2030<\/span><\/td>\n\u2030<\/span><\/td>\n<\/tr>\n
138<\/span><\/td>\n10001010<\/span><\/td>\n0x8A<\/span><\/td>\n\u0160<\/span><\/td>\n\u0160<\/span><\/td>\n<\/tr>\n
139<\/span><\/td>\n10001011<\/span><\/td>\n0x8B<\/span><\/td>\n\u2039<\/span><\/td>\n\u2039<\/span><\/td>\n<\/tr>\n
140<\/span><\/td>\n10001100<\/span><\/td>\n0x8C<\/span><\/td>\n\u0152<\/span><\/td>\n\u0152<\/span><\/td>\n<\/tr>\n
141<\/span><\/td>\n10001101<\/span><\/td>\n0x8D<\/span><\/td>\n\u008d<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
142<\/span><\/td>\n10001110<\/span><\/td>\n0x8E<\/span><\/td>\n\u017d<\/span><\/td>\n\u00c4<\/span><\/td>\n<\/tr>\n
143<\/span><\/td>\n10001111<\/span><\/td>\n0x8F<\/span><\/td>\n\u008f<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
144<\/span><\/td>\n10010000<\/span><\/td>\n0x90<\/span><\/td>\n\u0090<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
145<\/span><\/td>\n10010001<\/span><\/td>\n0x91<\/span><\/td>\n\u2018<\/span><\/td>\n\u2018<\/span><\/td>\n<\/tr>\n
146<\/span><\/td>\n10010010<\/span><\/td>\n0x92<\/span><\/td>\n\u2019<\/span><\/td>\n\u2019<\/span><\/td>\n<\/tr>\n
147<\/span><\/td>\n10010011<\/span><\/td>\n0x93<\/span><\/td>\n\u201c<\/span><\/td>\n\u201c<\/span><\/td>\n<\/tr>\n
148<\/span><\/td>\n10010100<\/span><\/td>\n0x94<\/span><\/td>\n\u201d<\/span><\/td>\n\u201d<\/span><\/td>\n<\/tr>\n
149<\/span><\/td>\n10010101<\/span><\/td>\n0x95<\/span><\/td>\n\u2022<\/span><\/td>\n\u2022<\/span><\/td>\n<\/tr>\n
150<\/span><\/td>\n10010110<\/span><\/td>\n0x96<\/span><\/td>\n\u2013<\/span><\/td>\n\u2013<\/span><\/td>\n<\/tr>\n
151<\/span><\/td>\n10010111<\/span><\/td>\n0x97<\/span><\/td>\n\u2014<\/span><\/td>\n\u2014<\/span><\/td>\n<\/tr>\n
152<\/span><\/td>\n10011000<\/span><\/td>\n0x98<\/span><\/td>\n\u02dc<\/span><\/td>\n\u02dc<\/span><\/td>\n<\/tr>\n
153<\/span><\/td>\n10011001<\/span><\/td>\n0x99<\/span><\/td>\n\u2122<\/span><\/td>\n\u2122<\/span><\/td>\n<\/tr>\n
154<\/span><\/td>\n10011010<\/span><\/td>\n0x9A<\/span><\/td>\n\u0161<\/span><\/td>\n\u0161<\/span><\/td>\n<\/tr>\n
155<\/span><\/td>\n10011011<\/span><\/td>\n0x9B<\/span><\/td>\n\u203a<\/span><\/td>\n\u203a<\/span><\/td>\n<\/tr>\n
156<\/span><\/td>\n10011100<\/span><\/td>\n0x9C<\/span><\/td>\n\u0153<\/span><\/td>\n\u0153<\/span><\/td>\n<\/tr>\n
157<\/span><\/td>\n10011101<\/span><\/td>\n0x9D<\/span><\/td>\n\u009d<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
158<\/span><\/td>\n10011110<\/span><\/td>\n0x9E<\/span><\/td>\n\u017e<\/span><\/td>\n\u017e<\/span><\/td>\n<\/tr>\n
159<\/span><\/td>\n10011111<\/span><\/td>\n0x9F<\/span><\/td>\n\u0178<\/span><\/td>\n\u0178<\/span><\/td>\n<\/tr>\n
160<\/span><\/td>\n10100000<\/span><\/td>\n0xA0<\/span><\/td>\n\u00a0<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
161<\/span><\/td>\n10100001<\/span><\/td>\n0xA1<\/span><\/td>\n\u00a1<\/span><\/td>\n\u00a1<\/span><\/td>\n<\/tr>\n
162<\/span><\/td>\n10100010<\/span><\/td>\n0xA2<\/span><\/td>\n\u00a2<\/span><\/td>\n\u00a2<\/span><\/td>\n<\/tr>\n
163<\/span><\/td>\n10100011<\/span><\/td>\n0xA3<\/span><\/td>\n\u00a3<\/span><\/td>\n\u00a3<\/span><\/td>\n<\/tr>\n
164<\/span><\/td>\n10100100<\/span><\/td>\n0xA4<\/span><\/td>\n\u00a4<\/span><\/td>\n\u00a4<\/span><\/td>\n<\/tr>\n
165<\/span><\/td>\n10100101<\/span><\/td>\n0xA5<\/span><\/td>\n\u00a5<\/span><\/td>\n\u00a5<\/span><\/td>\n<\/tr>\n
166<\/span><\/td>\n10100110<\/span><\/td>\n0xA6<\/span><\/td>\n\u00a6<\/span><\/td>\n\u00a6<\/span><\/td>\n<\/tr>\n
167<\/span><\/td>\n10100111<\/span><\/td>\n0xA7<\/span><\/td>\n\u00a7<\/span><\/td>\n\u00a7<\/span><\/td>\n<\/tr>\n
168<\/span><\/td>\n10101000<\/span><\/td>\n0xA8<\/span><\/td>\n\u00a8<\/span><\/td>\n\u00a8<\/span><\/td>\n<\/tr>\n
169<\/span><\/td>\n10101001<\/span><\/td>\n0xA9<\/span><\/td>\n\u00a9<\/span><\/td>\n\u00a9<\/span><\/td>\n<\/tr>\n
170<\/span><\/td>\n10101010<\/span><\/td>\n0xAA<\/span><\/td>\n\u00aa<\/span><\/td>\n\u00aa<\/span><\/td>\n<\/tr>\n
171<\/span><\/td>\n10101011<\/span><\/td>\n0xAB<\/span><\/td>\n\u00ab<\/span><\/td>\n\u00ab<\/span><\/td>\n<\/tr>\n
172<\/span><\/td>\n10101100<\/span><\/td>\n0xAC<\/span><\/td>\n\u00ac<\/span><\/td>\n\u00ac<\/span><\/td>\n<\/tr>\n
173<\/span><\/td>\n10101101<\/span><\/td>\n0xAD<\/span><\/td>\n\u00ad<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
174<\/span><\/td>\n10101110<\/span><\/td>\n0xAE<\/span><\/td>\n\u00ae<\/span><\/td>\n\u00ae<\/span><\/td>\n<\/tr>\n
175<\/span><\/td>\n10101111<\/span><\/td>\n0xAF<\/span><\/td>\n\u00af<\/span><\/td>\n\u00af<\/span><\/td>\n<\/tr>\n
176<\/span><\/td>\n10110000<\/span><\/td>\n0xB0<\/span><\/td>\n\u00b0<\/span><\/td>\n\u00b0<\/span><\/td>\n<\/tr>\n
177<\/span><\/td>\n10110001<\/span><\/td>\n0xB1<\/span><\/td>\n\u00b1<\/span><\/td>\n\u00b1<\/span><\/td>\n<\/tr>\n
178<\/span><\/td>\n10110010<\/span><\/td>\n0xB2<\/span><\/td>\n\u00b2<\/span><\/td>\n\u00b2<\/span><\/td>\n<\/tr>\n
179<\/span><\/td>\n10110011<\/span><\/td>\n0xB3<\/span><\/td>\n\u00b3<\/span><\/td>\n\u00b3<\/span><\/td>\n<\/tr>\n
180<\/span><\/td>\n10110100<\/span><\/td>\n0xB4<\/span><\/td>\n\u00b4<\/span><\/td>\n\u00b4<\/span><\/td>\n<\/tr>\n
181<\/span><\/td>\n10110101<\/span><\/td>\n0xB5<\/span><\/td>\n\u00b5<\/span><\/td>\n\u00b5<\/span><\/td>\n<\/tr>\n
182<\/span><\/td>\n10110110<\/span><\/td>\n0xB6<\/span><\/td>\n\u00b6<\/span><\/td>\n\u00b6<\/span><\/td>\n<\/tr>\n
183<\/span><\/td>\n10110111<\/span><\/td>\n0xB7<\/span><\/td>\n\u00b7<\/span><\/td>\n\u00b7<\/span><\/td>\n<\/tr>\n
184<\/span><\/td>\n10111000<\/span><\/td>\n0xB8<\/span><\/td>\n\u00b8<\/span><\/td>\n\u00b8<\/span><\/td>\n<\/tr>\n
185<\/span><\/td>\n10111001<\/span><\/td>\n0xB9<\/span><\/td>\n\u00b9<\/span><\/td>\n\u00b9<\/span><\/td>\n<\/tr>\n
186<\/span><\/td>\n10111010<\/span><\/td>\n0xBA<\/span><\/td>\n\u00ba<\/span><\/td>\n\u00ba<\/span><\/td>\n<\/tr>\n
187<\/span><\/td>\n10111011<\/span><\/td>\n0xBB<\/span><\/td>\n\u00bb<\/span><\/td>\n\u00bb<\/span><\/td>\n<\/tr>\n
188<\/span><\/td>\n10111100<\/span><\/td>\n0xBC<\/span><\/td>\n\u00bc<\/span><\/td>\n\u00bc<\/span><\/td>\n<\/tr>\n
189<\/span><\/td>\n10111101<\/span><\/td>\n0xBD<\/span><\/td>\n\u00bd<\/span><\/td>\n\u00bd<\/span><\/td>\n<\/tr>\n
190<\/span><\/td>\n10111110<\/span><\/td>\n0xBE<\/span><\/td>\n\u00be<\/span><\/td>\n\u00be<\/span><\/td>\n<\/tr>\n
191<\/span><\/td>\n10111111<\/span><\/td>\n0xBF<\/span><\/td>\n\u00bf<\/span><\/td>\n\u00bf<\/span><\/td>\n<\/tr>\n
192<\/span><\/td>\n11000000<\/span><\/td>\n0xC0<\/span><\/td>\n\u00c0<\/span><\/td>\n\u00c0<\/span><\/td>\n<\/tr>\n
193<\/span><\/td>\n11000001<\/span><\/td>\n0xC1<\/span><\/td>\n\u00c1<\/span><\/td>\n\u00c1<\/span><\/td>\n<\/tr>\n
194<\/span><\/td>\n11000010<\/span><\/td>\n0xC2<\/span><\/td>\n\u00c2<\/span><\/td>\n\u00c2<\/span><\/td>\n<\/tr>\n
195<\/span><\/td>\n11000011<\/span><\/td>\n0xC3<\/span><\/td>\n\u00c3<\/span><\/td>\n\u00c3<\/span><\/td>\n<\/tr>\n
196<\/span><\/td>\n11000100<\/span><\/td>\n0xC4<\/span><\/td>\n\u00c4<\/span><\/td>\n\u00c4<\/span><\/td>\n<\/tr>\n
197<\/span><\/td>\n11000101<\/span><\/td>\n0xC5<\/span><\/td>\n\u00c5<\/span><\/td>\n\u00c5<\/span><\/td>\n<\/tr>\n
198<\/span><\/td>\n11000110<\/span><\/td>\n0xC6<\/span><\/td>\n\u00c6<\/span><\/td>\n\u00c6<\/span><\/td>\n<\/tr>\n
199<\/span><\/td>\n11000111<\/span><\/td>\n0xC7<\/span><\/td>\n\u00c7<\/span><\/td>\n\u00c7<\/span><\/td>\n<\/tr>\n
200<\/span><\/td>\n11001000<\/span><\/td>\n0xC8<\/span><\/td>\n\u00c8<\/span><\/td>\n\u00c8<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

H\u1ec7 th\u1eadp ph\u00e2n t\u1eeb 201 \u0111\u1ebfn 255<\/strong><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u1ec7 th\u1eadp ph\u00e2n<\/b><\/td>\nH\u1ec7 nh\u1ecb ph\u00e2n<\/b><\/td>\nH\u1ec7 th\u1eadp l\u1ee5c ph\u00e2n<\/b><\/td>\nHTML<\/b><\/td>\nK\u00fd t\u1ef1<\/b><\/td>\n<\/tr>\n
201<\/span><\/td>\n11001001<\/span><\/td>\n0xC9<\/span><\/td>\n\u00c9<\/span><\/td>\n\u00c9<\/span><\/td>\n<\/tr>\n
202<\/span><\/td>\n11001010<\/span><\/td>\n0xCA<\/span><\/td>\n\u00ca<\/span><\/td>\n\u00ca<\/span><\/td>\n<\/tr>\n
203<\/span><\/td>\n11001011<\/span><\/td>\n0xCB<\/span><\/td>\n\u00cb<\/span><\/td>\n\u00cb<\/span><\/td>\n<\/tr>\n
204<\/span><\/td>\n11001100<\/span><\/td>\n0xCC<\/span><\/td>\n\u00cc<\/span><\/td>\n\u00cc<\/span><\/td>\n<\/tr>\n
205<\/span><\/td>\n11001101<\/span><\/td>\n0xCD<\/span><\/td>\n\u00cd<\/span><\/td>\n\u00cd<\/span><\/td>\n<\/tr>\n
206<\/span><\/td>\n11001110<\/span><\/td>\n0xCE<\/span><\/td>\n\u00ce<\/span><\/td>\n\u00ce<\/span><\/td>\n<\/tr>\n
207<\/span><\/td>\n11001111<\/span><\/td>\n0xCF<\/span><\/td>\n\u00cf<\/span><\/td>\n\u00cf<\/span><\/td>\n<\/tr>\n
208<\/span><\/td>\n11010000<\/span><\/td>\n0xD0<\/span><\/td>\n\u00d0<\/span><\/td>\n\u00d0<\/span><\/td>\n<\/tr>\n
209<\/span><\/td>\n11010001<\/span><\/td>\n0xD1<\/span><\/td>\n\u00d1<\/span><\/td>\n\u00d1<\/span><\/td>\n<\/tr>\n
210<\/span><\/td>\n11010010<\/span><\/td>\n0xD2<\/span><\/td>\n\u00d2<\/span><\/td>\n\u00d2<\/span><\/td>\n<\/tr>\n
211<\/span><\/td>\n11010011<\/span><\/td>\n0xD3<\/span><\/td>\n\u00d3<\/span><\/td>\n\u00d3<\/span><\/td>\n<\/tr>\n
212<\/span><\/td>\n11010100<\/span><\/td>\n0xD4<\/span><\/td>\n\u00d4<\/span><\/td>\n\u00d4<\/span><\/td>\n<\/tr>\n
213<\/span><\/td>\n11010101<\/span><\/td>\n0xD5<\/span><\/td>\n\u00d5<\/span><\/td>\n\u00d5<\/span><\/td>\n<\/tr>\n
214<\/span><\/td>\n11010110<\/span><\/td>\n0xD6<\/span><\/td>\n\u00d6<\/span><\/td>\n\u00d6<\/span><\/td>\n<\/tr>\n
215<\/span><\/td>\n11010111<\/span><\/td>\n0xD7<\/span><\/td>\n\u00d7<\/span><\/td>\n\u00d7<\/span><\/td>\n<\/tr>\n
216<\/span><\/td>\n11011000<\/span><\/td>\n0xD8<\/span><\/td>\n\u00d8<\/span><\/td>\n\u00d8<\/span><\/td>\n<\/tr>\n
217<\/span><\/td>\n11011001<\/span><\/td>\n0xD9<\/span><\/td>\n\u00d9<\/span><\/td>\n\u00d9<\/span><\/td>\n<\/tr>\n
218<\/span><\/td>\n11011010<\/span><\/td>\n0xDA<\/span><\/td>\n\u00da<\/span><\/td>\n\u00da<\/span><\/td>\n<\/tr>\n
219<\/span><\/td>\n11011011<\/span><\/td>\n0xDB<\/span><\/td>\n\u00db<\/span><\/td>\n\u00db<\/span><\/td>\n<\/tr>\n
220<\/span><\/td>\n11011100<\/span><\/td>\n0xDC<\/span><\/td>\n\u00dc<\/span><\/td>\n\u00dc<\/span><\/td>\n<\/tr>\n
221<\/span><\/td>\n11011101<\/span><\/td>\n0xDD<\/span><\/td>\n\u00dd<\/span><\/td>\n\u00dd<\/span><\/td>\n<\/tr>\n
222<\/span><\/td>\n11011110<\/span><\/td>\n0xDE<\/span><\/td>\n\u00de<\/span><\/td>\n\u00de<\/span><\/td>\n<\/tr>\n
223<\/span><\/td>\n11011111<\/span><\/td>\n0xDF<\/span><\/td>\n\u00df<\/span><\/td>\n\u00df<\/span><\/td>\n<\/tr>\n
224<\/span><\/td>\n11100000<\/span><\/td>\n0xE0<\/span><\/td>\n\u00e0<\/span><\/td>\n\u00e0<\/span><\/td>\n<\/tr>\n
225<\/span><\/td>\n11100001<\/span><\/td>\n0xE1<\/span><\/td>\n\u00e1<\/span><\/td>\n\u00e1<\/span><\/td>\n<\/tr>\n
226<\/span><\/td>\n11100010<\/span><\/td>\n0xE2<\/span><\/td>\n\u00e2<\/span><\/td>\n\u00e2<\/span><\/td>\n<\/tr>\n
227<\/span><\/td>\n11100011<\/span><\/td>\n0xE3<\/span><\/td>\n\u00e3<\/span><\/td>\n\u00e3<\/span><\/td>\n<\/tr>\n
228<\/span><\/td>\n11100100<\/span><\/td>\n0xE4<\/span><\/td>\n\u00e4<\/span><\/td>\n\u00e4<\/span><\/td>\n<\/tr>\n
229<\/span><\/td>\n11100101<\/span><\/td>\n0xE5<\/span><\/td>\n\u00e5<\/span><\/td>\n\u00e5<\/span><\/td>\n<\/tr>\n
230<\/span><\/td>\n11100110<\/span><\/td>\n0xE6<\/span><\/td>\n\u00e6<\/span><\/td>\n\u00e6<\/span><\/td>\n<\/tr>\n
231<\/span><\/td>\n11100111<\/span><\/td>\n0xE7<\/span><\/td>\n\u00e7<\/span><\/td>\n\u00e7<\/span><\/td>\n<\/tr>\n
232<\/span><\/td>\n11101000<\/span><\/td>\n0xE8<\/span><\/td>\n\u00e8<\/span><\/td>\n\u00e8<\/span><\/td>\n<\/tr>\n
233<\/span><\/td>\n11101001<\/span><\/td>\n0xE9<\/span><\/td>\n\u00e9<\/span><\/td>\n\u00e9<\/span><\/td>\n<\/tr>\n
234<\/span><\/td>\n11101010<\/span><\/td>\n0xEA<\/span><\/td>\n\u00ea<\/span><\/td>\n\u00ea<\/span><\/td>\n<\/tr>\n
235<\/span><\/td>\n11101011<\/span><\/td>\n0xEB<\/span><\/td>\n\u00eb<\/span><\/td>\n\u00eb<\/span><\/td>\n<\/tr>\n
236<\/span><\/td>\n11101100<\/span><\/td>\n0xEC<\/span><\/td>\n\u00ec<\/span><\/td>\n\u00ec<\/span><\/td>\n<\/tr>\n
237<\/span><\/td>\n11101101<\/span><\/td>\n0xED<\/span><\/td>\n\u00ed<\/span><\/td>\n\u00ed<\/span><\/td>\n<\/tr>\n
238<\/span><\/td>\n11101110<\/span><\/td>\n0xEE<\/span><\/td>\n\u00ee<\/span><\/td>\n\u00ee<\/span><\/td>\n<\/tr>\n
239<\/span><\/td>\n11101111<\/span><\/td>\n0xEF<\/span><\/td>\n\u00ef<\/span><\/td>\n\u00ef<\/span><\/td>\n<\/tr>\n
240<\/span><\/td>\n11110000<\/span><\/td>\n0xF0<\/span><\/td>\n\u00f0<\/span><\/td>\n\u00f0<\/span><\/td>\n<\/tr>\n
241<\/span><\/td>\n11110001<\/span><\/td>\n0xF1<\/span><\/td>\n\u00f1<\/span><\/td>\n\u00f1<\/span><\/td>\n<\/tr>\n
242<\/span><\/td>\n11110010<\/span><\/td>\n0xF2<\/span><\/td>\n\u00f2<\/span><\/td>\n\u00f2<\/span><\/td>\n<\/tr>\n
243<\/span><\/td>\n11110011<\/span><\/td>\n0xF3<\/span><\/td>\n\u00f3<\/span><\/td>\n\u00f3<\/span><\/td>\n<\/tr>\n
244<\/span><\/td>\n11110100<\/span><\/td>\n0xF4<\/span><\/td>\n\u00f4<\/span><\/td>\n\u00f4<\/span><\/td>\n<\/tr>\n
245<\/span><\/td>\n11110101<\/span><\/td>\n0xF5<\/span><\/td>\n\u00f5<\/span><\/td>\n\u00f5<\/span><\/td>\n<\/tr>\n
246<\/span><\/td>\n11110110<\/span><\/td>\n0xF6<\/span><\/td>\n\u00f6<\/span><\/td>\n\u00f6<\/span><\/td>\n<\/tr>\n
247<\/span><\/td>\n11110111<\/span><\/td>\n0xF7<\/span><\/td>\n\u00f7<\/span><\/td>\n\u00f7<\/span><\/td>\n<\/tr>\n
248<\/span><\/td>\n11111000<\/span><\/td>\n0xF8<\/span><\/td>\n\u00f8<\/span><\/td>\n\u00f8<\/span><\/td>\n<\/tr>\n
249<\/span><\/td>\n11111001<\/span><\/td>\n0xF9<\/span><\/td>\n\u00f9<\/span><\/td>\n\u00f9<\/span><\/td>\n<\/tr>\n
250<\/span><\/td>\n11111010<\/span><\/td>\n0xFA<\/span><\/td>\n\u00fa<\/span><\/td>\n\u00fa<\/span><\/td>\n<\/tr>\n
251<\/span><\/td>\n11111011<\/span><\/td>\n0xFB<\/span><\/td>\n\u00fb<\/span><\/td>\n\u00fb<\/span><\/td>\n<\/tr>\n
252<\/span><\/td>\n11111100<\/span><\/td>\n0xFC<\/span><\/td>\n\u00fc<\/span><\/td>\n\u00fc<\/span><\/td>\n<\/tr>\n
253<\/span><\/td>\n11111101<\/span><\/td>\n0xFD<\/span><\/td>\n\u00fd<\/span><\/td>\n\u00fd<\/span><\/td>\n<\/tr>\n
254<\/span><\/td>\n11111110<\/span><\/td>\n0xFE<\/span><\/td>\n\u00fe<\/span><\/td>\n\u00fe<\/span><\/td>\n<\/tr>\n
255<\/span><\/td>\n11111111<\/span><\/td>\n0xFF<\/span><\/td>\n\u00ff<\/span><\/td>\n\u00ff<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

T\u00f3m l\u1ea1i, <\/span>b\u1ea3ng ASCII<\/b> l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111a d\u1ea1ng h\u00f3a c\u1ee7a th\u00f4ng tin v\u0103n b\u1ea3n. N\u00f3 t\u1ea1o ra m\u1ed9t n\u1ec1n t\u1ea3ng chu\u1ea9n qu\u1ed1c t\u1ebf cho truy\u1ec1n t\u1ea3i v\u00e0 bi\u1ec3u di\u1ec5n k\u00fd t\u1ef1 tr\u00ean m\u00e1y t\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb truy\u1ec1n th\u00f4ng. V\u00e0 ch\u1eafc ch\u1eafn trong t\u01b0\u01a1ng lai n\u00f3 s\u1ebd c\u00f2n ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd h\u01a1n n\u1eefa.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n