KOI7

KOI7 is a 7-bit character encoding, designed to cover Russian, which uses the Cyrillic alphabet.

In Russian, KOI7 stands for Kod Obmena Informatsiey, 7 bit (Код Обмена Информацией, 7 бит) which means "Code for Information Exchange, 7 bit".

Shift Out (SO) and Shift In (SI) control characters are used in KOI7, where SO starts printing Russian letters, and SI starts printing Latin letters again, or for lowercase and uppercase switching.

Codepage layout

KOI7
	—0	—1	—2	—3	—4	—5	—6	—7	—8	—9	—A	—B	—C	—D	—E	—F
0_	NUL 0000 0	SOH 0001 1	STX 0002 2	ETX 0003 3	EOT 0004 4	ENQ 0005 5	ACK 0006 6	BEL 0007 7	BS 0008 8	HT 0009 9	LF 000A 10	VT 000B 11	FF 000C 12	CR 000D 13	SO 000E 14	SI 000F 15
1_	DLE 0010 16	DC1 0011 17	DC2 0012 18	DC3 0013 19	DC4 0014 20	NAK 0015 21	SYN 0016 22	ETB 0017 23	CAN 0018 24	EM 0019 25	SUB 001A 26	ESC 001B 27	FS 001C 28	GS 001D 29	RS 001E 30	US 001F 31
2_	SP 0020 32	! 0021 33	" 0022 34	# 0023 35	$ 0024 36	% 0025 37	& 0026 38	' 0027 39	( 0028 40	) 0029 41	* 002A 42	+ 002B 43	, 002C 44	- 002D 45	. 002E 46	/ 002F 47
3_	0 0030 48	1 0031 49	2 0032 50	3 0033 51	4 0034 52	5 0035 53	6 0036 54	7 0037 55	8 0038 56	9 0039 57	: 003A 58	; 003B 59	< 003C 60	= 003D 61	> 003E 62	? 003F 63
4_	@ 0040 64	A 0041 65	B 0042 66	C 0043 67	D 0044 68	E 0045 69	F 0046 70	G 0047 71	H 0048 72	I 0049 73	J 004A 74	K 004B 75	L 004C 76	M 004D 77	N 004E 78	O 004F 79
5_	P 0050 80	Q 0051 81	R 0052 82	S 0053 83	T 0054 84	U 0055 85	V 0056 86	W 0057 87	X 0058 88	Y 0059 89	Z 005A 90	[ 005B 91	\ 005C 92	] 005D 93	^ 005E 94	_ 005F 95
6_	Ю 042E 96	А 0410 97	Б 0411 98	Ц 0426 99	Д 0414 100	Е 0415 101	Ф 0424 102	Г 0413 103	Х 0425 104	И 0418 105	Й 0419 106	К 041A 107	Л 041B 108	М 041C 109	Н 041D 110	О 041E 111
7_	П 041F 112	Я 042F 113	Р 0420 114	С 0421 115	Т 0422 116	У 0423 117	Ж 0416 118	В 0412 119	Ь 042C 120	Ы 042B 121	З 0417 122	Ш 0428 123	Э 042D 124	Щ 0429 125	Ч 0427 126	DEL 007F 127

The dollar sign character ("$" hex 24), however, was often replaced with the universal currency sign "¤" in Soviet computers. A popular legend has it that this was to demonstrate independence of the American-dominated computer industry — which was ironic, since a significant number of Soviet computers were actually implementations of various American designs.

Character encodings

Character sets

Early telecommunications	ASCII ISO/IEC 646 ISO/IEC 6937 T.61 BCD Baudot code Morse code (Telegraph code) Special telegraphy codes: Non-Latin, Chinese, Cyrillic

ISO/IEC 8859	-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16

Bibliographic use	ANSEL ISO 5426 / 5426-2 / 5427 / 5428 / 6438 / 6861 / 6862 / 10585 / 10586 / 10754 / 11822 MARC-8

National standards	ArmSCII CNS 11643 GOST 10859 GB 18030 HKSCS ISCII JIS X 0201 JIS X 0208 JIS X 0212 JIS X 0213 KPS 9566 KS X 1001 PASCII SI 960 TIS-620 TSCII VISCII YUSCII

EUC	CN JP KR TW

ISO/IEC 2022	CN JP KR CCCII

MacOS codepages ("scripts")	Arabic CentralEurRoman ChineseSimp / EUC-CN ChineseTrad / Big5 Croatian Cyrillic Devanagari Dingbats Farsi Greek Gujarati Gurmukhi Hebrew Icelandic Japanese / ShiftJIS Korean / EUC-KR Roman Romanian Symbol Thai / TIS-620 Turkish Ukrainian

DOS codepages	111 112 113 151 161 162 163 164 165 220 300 301 367 371 437 449 620 667 668 708 709 710 711 720 737 770 771 772 773 774 775 776 777 778 790 806 808 813 819 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 872 874 876 877 878 881 882 883 884 885 891 895 896 897 898 899 900 901 902 903 904 906 907 909 910 911 912 913 914 915 916 919 920 921 922 923 925 926 927 928 932 934 936 938 941 942 943 944 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 971 991 1004 1006 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1023 1029 1034 1036 1038 1039 1040 1041 1042 1043 1044 1046 1086 1088 1089 1090 1092 1093 1098 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1111 1114 1115 1116 1117 1118 1119 1124 1125 1126 1127 1129 1131 1133 1139 1161 1162 1163 1167 1168 1169 1174 1270 1275 1276 1277 1280 1281 1282 1283 1284 1285 1286 1287 1288 1350 1351 1361 1362 1363 1373 Kamenický Mazovia MIK Iran System

Windows codepages	874 / TIS-620 932 / Shift JIS 936 / GBK 949 / EUC-KR 950 / Big5 1200 / UTF-16 (Little Endian) 1201 / UTF-16 (Big Endian) 1250 1251 1252 1253 1254 1255 1256 1257 1258 54936 / GB18030

EBCDIC codepages	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37/1140 38 39 40 251 252 254 256 257 258 259 260 264 273/1141 274 275 276 277/1142 278/1143 280/1144 281 282 283 284/1145 285/1146 286 287 288 289 290 293 297/1147 298 310 320 321 322 330 351 361 363 382 383 384 385 386 387 388 389 390 391 392 393 394 395 410 420/16804 421 423 424/12712 425 435 500/1148 803 829 833 834 835 836 837 838/1160 839 870/1153 871/1149 875/9067 880 881 882 883 884 885 886 887 888 889 890 892 893 905 918 924 930/1390 931 933/1364 935/1388 937/1371 939/1399 1001 1002 1003 1005 1007 1024 1025/1154 1026/1155 1027 1028 1030 1031 1032 1033 1037 1047/924 1068 1069 1070 1071 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1087 1091 1097 1110 1112/1156 1113 1122/1157 1123/1158 1130/1164 1132 1136 1137 1150 1151 1152 1159 1165 1166 1278 1303 1364 JEF KEIS

Platform specific	ATASCII CDC display code DEC-MCS DEC Radix-50 ELWRO-Junior Fieldata GSM 03.38 HP roman8 PETSCII TI calculator character sets WISCII ZX80 character set ZX Spectrum character set

Unicode / ISO/IEC 10646	UTF-8 UTF-16/UCS-2 UTF-32/UCS-4 UTF-7 UTF-1 UTF-EBCDIC GB 18030 SCSU BOCU-1

Miscellaneous codepages	APL Cork HZ JOHAB KOI8 TRON

Related topics	control character (C0 C1) CCSID Character encodings in HTML charset detection Han unification ISO 6429/IEC 6429/ANSI X3.64 mojibake

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KOI7

Codepage layout

See also