Knowledge (XXG)

VT52

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The electrode on one side was a thin straight bar oriented across the paper width. The electrode on the other side was a thin helical bar wrapped around a rotating drum. One rotation of the drum scanned an intersecting area of the electrodes across the width of the paper. While the copier did an admirable job of capturing the contents of the screen, the output of the copier had an unfortunate resemblance to wet
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The VT52 and VT55 included two characters sets, ASCII and "graphics mode" which switched out the lower case characters and some punctuation with new characters useful for the display of math. Unusual were glyphs for ¹⁄, ³⁄, ⁵⁄, ⁷⁄, which could be combined with subscript numbers to produce things like
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copier, which fit into the blank panel on the right side of the display. This device was able to print, scan-line by scan-line, an exact replica of the screen onto a damp roll of special paper. It did this by electroplating metal from an electrode into the paper. The paper ran between two electrodes.
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code was used to position the cursor anywhere on the screen, using two parameters representing the X and Y coordinates of the cursor position, with the upper left corner of the screen being position 1,1. These numbers were sent as ASCII characters of that value, adding 31. For instance, to position
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command. Only the last four bits of the number were used, providing support for 16 colors. The Atari ST only supported 4 of those in 80 column mode and all 16 in 40 column mode. A few new cursor commands were added as well, essentially filling out the set of the original VT52 by including commands
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The basic layout of the terminal, with the screen and main keyboard on the left and the blank area on the right, was intended to allow the system to be upgraded. The printer was one such upgrade, but over time DEC offered a number of other options. The large size of the cabinet was deliberate, to
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lines, and then triggered the display hardware to take over at the appropriate time. The display system returned control to the CPU when it completed drawing the line. The CPU was so basic that addition and subtraction could only be done by repeatedly incrementing or decrementing two registers.
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memory, using a separate instruction code that the processor interpreted. This unpublished language was to be used to easily develop additional models specific to single Digital marketing organizations. These terminals synthesized a "tock" sound on a speaker for feedback when a key was pressed
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The VT50 was soon replaced by the greatly upgraded VT52. The VT52 had considerably larger buffers, giving it the capacity to store not only a full 24 lines of text that better utilized the screen space, but also the text off the top and bottom of the screen. This allowed the terminal to scroll
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wiring. Data was read into a small buffer, which the display hardware periodically read to produce the display. Characters typed on the keyboard were likewise stored in a buffer and sent over the serial line as quickly as possible.
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The GEMDOS version of the VT52 command set adds a number of new commands. These mostly concerned color support, with the color selection being sent as a single character using the same number-to-character encoding as the
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VT52 codes remained proprietary to DEC, although a number of other companies provided emulations in their terminals. Later VT series terminals supported a subset of these commands. One interesting case is the
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The VT50 was the first terminal Digital produced in this cabinet. It provided only 12 lines of text with blank lines between them to use the entire vertical area of the display. Like its predecessor, the
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DEC corporate chronological product and financial summary, brief description and cropped image of VT52 on page 51, brief descriptions of VT55 and image with electrolytic copier visible on pages 51 and 59
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characters as well as 32 graphics characters, bi-directional scrolling, and an expanded control character system. DEC produced a series of upgraded VT52's with additional hardware for various uses.
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backwards a limited amount without having to ask the host to re-send data. Another significant upgrade was that the VT52 included lowercase text support. Many new commands and features were added:
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avoid a cooling fan. The two circuit boards with processor and memory at the base of the terminal, and a single board with power-supply and monitor electronics at the rear, were cooled by
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VT52 commands normally consisted of the escape character and a single character following it. The exception to this rule was the Y command, which also required two numbers to be sent.
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The relatively large expansion area of the VT50 case, combined with rapidly shrinking electronics in the late 1970s, allowed DEC to produce single-box, stand-alone
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for up, down, left and right, respectively. Another three of the keys were unlabeled and could be programmed to return any two-character code, and would default to
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Moreover, the time taken by such a loop had to be nearly constant, or text lower on the screen would be displayed in the wrong place during that refresh.
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Typing on the numeric keypad could now be distinguished from the main keyboard by turning on Alternate-Keypad Mode. This returned multi-character codes,
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that cleared toward the top of the screen instead of the bottom. The system did not support a number of VT52 commands, including F, G and Z.
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A "graphics character set" which included several less-common characters as well as the ability to print some fractions in-line, like
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The VT50H added a separate "auxilary keyboard" on the right side of the original keyboard. This was arranged in the fashion of a
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the cursor at column 30 and line 20, you would add 31 to each value to get 61 and 51, then look up those ASCII characters,
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command allowed the host computer to identify the capabilities of the terminal. There were eight possible responses.
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had already become almost universal. This version added several new commands including the ability to select colors.
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Later VT terminals supported VT52 commands, as well as adding a single new command to return to full ANSI mode.
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Typing a character produced a noise by activating a relay. The relay was also used as a buzzer to sound the
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in September 1975. The VT52 provided a screen of 24 rows and 80 columns of text and supported all 95
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incorporated an add-on graphics system that was capable of displaying two mathematical functions or
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instead of the relay. Though the keyboards were identical, VT6x users admired the superior "feel".
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providing backward compatibility with the VT05. The VT52 did not support this alternate command.
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DEC VT52 terminal emulator for Windows, supports serial ports, telnet, and raw TCP: kgober/VT52
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Characters continue to be displayed until they reach the point where a scroll would occur,
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that had to slowly draw text using graphics commands. This system became known as
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One notable feature was the introduction of a separate function keypad with the "
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To interpret the commands being sent in the serial data, it used a primitive
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If it is already in the top line, instead scroll all content down one line.
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New cursor control codes to support host-directed full-screen editing and a
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Saves the current position of the cursor in memory, TOS 1.02 and later.
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The VT50 was sold only for a short period before it was replaced by the
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machines that was more suitable for transmission over long runs of
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Clear current line from the start to the left side to the cursor.
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Enable line wrap, removing the need for CR/LF at line endings.
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The VT50H also added the "SO" command that worked identically,
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Several additional codes were used with the optional copier:
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Erase the entire line and positions the cursor on the left.
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The VT52 family was followed by the much more sophisticated
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Return the cursor to the settings previously saved with j.
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Move cursor to position c,r, encoded as single characters.
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system and its offshoot, the TOS operating system of the
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DEC also offered an optional hard-copy device called an
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Move cursor one column to the left. Same action as the
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Clear screen from the cursor up to the home position.
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VT52 Graphics Mode (gray cells are the same as ASCII)
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Changes the character codes returned by the keypad.
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Changes the character codes returned by the keypad.
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For other uses, see 2159: 2137: 2087: 2073: 2065: 446:, and would re-appear on the later VT105. 43: 36: 216:(CPU) built from small-scale-integration 1951:, Digital Equipment Corp., December 1980 1936: 1912: 1900: 1888: 1876: 1708: 1705: 1692: 1689: 1676: 1673: 1660: 1657: 1644: 1641: 1628: 1625: 1612: 1609: 1596: 1593: 1580: 1577: 1572:Makes the cursor visible on the screen. 1564: 1561: 1548: 1545: 1532: 1529: 1526: 1513: 1510: 1507: 1500: 1497: 1494: 1491: 1480: 1477: 1462: 1456: 1443: 1440: 1437: 1433: 1430: 1415: 1412: 1397: 1144: 1141: 1125: 1122: 1106: 1103: 1085: 1070: 1067: 1064: 1059: 1056: 1053: 1043: 1040: 1037: 1032: 1029: 1026: 1016: 1013: 1010: 1005: 1002: 999: 986: 983: 980: 962: 957: 954: 942: 939: 936: 933: 929: 925: 920: 917: 894: 891: 875: 872: 852: 849: 828: 809: 806: 790: 787: 767: 764: 761: 758: 742: 739: 723: 720: 702: 699: 683: 680: 664: 661: 645: 642: 631: 622: 619: 603: 600: 584: 581: 563: 560: 542: 375: 371: 368: 365: 358: 354: 350: 346: 342: 338: 321: 317: 314: 310: 306: 303: 1753: 1728: 3039:Computer-related introductions in 1975 1924: 1521:Set text colour to the selected value 817:Stops display scrolling of the screen. 691:Move cursor to the upper left corner. 298:above the numbers. Four of these were 27:CRT-based computer terminal by Digital 932:. The complete command would then be 821:at which point the terminal sends an 611:Move cursor one column to the right. 487:/terminals similar to a contemporary 200:, an older serial standard used with 7: 3003: 2696:Digital Storage Systems Interconnect 860:Turns off hold-screen mode sends an 653:Use special graphics character set. 2770:Dynamically Redefined Character Set 2716:Synchronous Backplane Interconnect 731:Clear screen from cursor onwards. 25: 1949:"GIGI Programming Reference Card" 3002: 2993: 2992: 2983: 2982: 2003:VT50-Series Copier User's Manual 1813:VT52 DECscope Maintenance Manual 750:Clear line from cursor onwards. 672:Use normal US/UK character set. 592:Move cursor one line downwards. 2910:Maintenance Operations Protocol 1684:Switch off inverse video text. 1963:, TOS Documentation, June 1991 1939:, pp. 24, 25, Appendix B. 1668:Switch on inverse video text. 503:operating system, and usually 1: 2800:Mass Storage Control Protocol 2096:Digital Equipment Corporation 1133:Prints all subsequent lines. 710:Move cursor one line upwards. 571:Move cursor one line upwards. 136:Digital Equipment Corporation 62:Digital Equipment Corporation 2890:Digital Federal Credit Union 2112:(founder and CEO, 1957–1992) 1857:"Linux-Advocacy Digest #457" 1766:gordonbell.azurewebsites.net 1588:Makes the cursor invisible. 880:Enter alternate-keypad mode 256:for both screen and copier. 3034:Character-oriented terminal 2934:Sequence and Batch Language 2895:Dynamic debugging technique 1839:"Re: Strange VT50 Decscope" 1785:The new hacker's dictionary 1114:Prints the current screen. 899:Exit alternate-keypad mode 3055: 2925:Record Management Services 2711:Standard Disk Interconnect 178:asynchronous communication 176:These terminals supported 29: 2978: 2959:The Ultimate Entrepreneur 2135: 1553:Clear to start of screen 949:Terminal identifier codes 42: 2622:DIGITAL Command Language 1490:Essentially the same as 827:If the user presses the 188:and did not require any 2948:Systems Research Center 2943:System Reference Manual 1735:Reserved for future use 1649:Clear to start of line 1391:VT52 compatibility mode 814:Enter hold-screen mode 728:Clear to end of screen 214:central processing unit 134:that was introduced by 3029:DEC computer terminals 2915:On-line Debugging Tool 1990:DECscope Users' Manual 1540:Set background colour 1384: 1277: 1256: 1254: 1252: 1250: 1248: 1246: 1244: 1242: 1240: 1238: 1236: 1234: 1232: 1230: 857:Exit hold-screen mode 236:stripping its gears." 1450:GEMDOS/TOS extensions 1423:Enter/exit ANSI mode 1130:Enter auto-copy mode 747:Clear to end of line 2905:Local Area Transport 2663:National Replacement 1973:"The VT-52 Emulator" 1861:www.mail-archive.com 1149:Exit auto-copy mode 772:Set cursor position 650:Enter graphics mode 495:added a single-chip 464:block-mode terminals 2765:Digital Linear Tape 2124:(VP of engineering) 1716:Disable line wrap. 1172: 669:Exit graphics mode 450:Block mode versions 250:character generator 218:integrated circuits 39: 2988:Computers template 1915:, pp. 20, 21. 1170: 912:Cursor positioning 707:Reverse line feed 196:port as well as a 140:control characters 3016: 3015: 2319: 2318: 1903:, pp. 12–30. 1799:978-0-262-68092-9 1720: 1719: 1537:Background color 1518:Foreground color 1427: 1426: 1388: 1387: 1159: 1158: 1076: 1075: 909: 908: 536:Standard commands 530:ANSI escape codes 444:waveform graphics 252:provide the text 198:20mA current loop 184:rates up to 9600 132:computer terminal 120: 119: 16:(Redirected from 3046: 3006: 3005: 2996: 2995: 2986: 2985: 2780:Flip-Chip module 2673:Special Graphics 2160: 2141: 2130:(CEO, 1992–1998) 2089: 2082: 2075: 2066: 2061: 2060: 2059: 2040:, Terminals Wiki 2034:, Terminals Wiki 2028:, Terminals Wiki 2010: 2008: 1997: 1995: 1975: 1970: 1964: 1961:"VT-52 terminal" 1958: 1952: 1946: 1940: 1934: 1928: 1922: 1916: 1910: 1904: 1898: 1892: 1886: 1880: 1874: 1865: 1864: 1853: 1847: 1846: 1841:. Archived from 1835: 1829: 1828: 1821: 1815: 1810: 1804: 1803: 1780:Raymond, Eric S. 1776: 1770: 1769: 1758: 1736: 1733: 1463: 1398: 1270: 1263: 1173: 1152:Stops printing. 1086: 991:(not available) 969:Without printer 963: 863: 840: 834: 824: 543: 515:Escape sequences 397: 396: 392: 337:Support for the 294:with additional 96: 94: 88: 86: 47: 40: 21: 3054: 3053: 3049: 3048: 3047: 3045: 3044: 3043: 3019: 3018: 3017: 3012: 2974: 2839: 2735: 2682: 2642:(Multinational) 2626: 2578: 2571: 2466: 2459: 2326: 2315: 2294: 2239: 2187: 2153: 2149: 2148:Instruction set 2142: 2133: 2116:Harlan Anderson 2098: 2093: 2057: 2055: 2048: 2017: 2006: 2000: 1993: 1987: 1984: 1979: 1978: 1971: 1967: 1959: 1955: 1947: 1943: 1935: 1931: 1923: 1919: 1911: 1907: 1899: 1895: 1887: 1883: 1875: 1868: 1855: 1854: 1850: 1837: 1836: 1832: 1823: 1822: 1818: 1811: 1807: 1800: 1792:. p. 186. 1778: 1777: 1773: 1762:"1975 Timeline" 1760: 1759: 1755: 1750: 1745: 1740: 1739: 1734: 1730: 1725: 1710: 1707: 1694: 1691: 1678: 1675: 1662: 1659: 1646: 1643: 1630: 1627: 1617:Restore cursor 1614: 1611: 1598: 1595: 1585:Disable cursor 1582: 1579: 1566: 1563: 1550: 1547: 1534: 1531: 1528: 1515: 1512: 1509: 1502: 1499: 1496: 1493: 1489: 1482: 1479: 1458: 1452: 1445: 1442: 1439: 1435: 1432: 1417: 1414: 1393: 1266: 1259: 1164: 1146: 1143: 1127: 1124: 1108: 1105: 1081: 1072: 1069: 1066: 1061: 1058: 1055: 1045: 1042: 1039: 1034: 1031: 1028: 1018: 1015: 1012: 1007: 1004: 1001: 988: 985: 982: 959: 956: 951: 944: 941: 938: 935: 931: 927: 922: 919: 914: 896: 893: 877: 874: 854: 851: 836: 830: 826: 820: 818: 811: 808: 792: 789: 782:VT50H and VT52 778: 776: 769: 766: 763: 760: 744: 741: 725: 722: 711: 704: 701: 685: 682: 666: 663: 647: 644: 637:VT50H and VT52 633: 624: 621: 605: 602: 595:VT50H and VT52 586: 583: 572: 565: 562: 538: 517: 509:word processing 481: 452: 420: 394: 390: 389: 377: 373: 370: 367: 361:, respectively. 360: 356: 352: 348: 344: 340: 330: 323: 319: 316: 312: 308: 305: 288: 275: 270: 190:fill characters 186:bits per second 174: 92: 90: 84: 82: 53: 35: 28: 23: 22: 15: 12: 11: 5: 3052: 3050: 3042: 3041: 3036: 3031: 3021: 3020: 3014: 3013: 3011: 3010: 3000: 2990: 2979: 2976: 2975: 2973: 2972: 2967: 2962: 2955: 2950: 2945: 2940: 2935: 2932: 2927: 2922: 2917: 2912: 2907: 2902: 2897: 2892: 2887: 2886: 2885: 2875: 2870: 2863: 2858: 2853: 2847: 2845: 2844:Related topics 2841: 2840: 2838: 2837: 2832: 2827: 2822: 2817: 2812: 2807: 2802: 2797: 2792: 2787: 2782: 2777: 2772: 2767: 2762: 2757: 2752: 2746: 2744: 2737: 2736: 2734: 2733: 2728: 2723: 2718: 2713: 2708: 2703: 2698: 2692: 2690: 2684: 2683: 2681: 2680: 2675: 2670: 2665: 2660: 2655: 2652:Code page 1288 2649: 2646:Code page 1287 2643: 2640:Code page 1100 2636: 2634: 2632:Character sets 2628: 2627: 2625: 2624: 2619: 2614: 2609: 2604: 2599: 2594: 2589: 2583: 2581: 2573: 2572: 2570: 2569: 2564: 2559: 2554: 2549: 2544: 2539: 2534: 2533: 2532: 2522: 2517: 2512: 2507: 2502: 2497: 2492: 2487: 2482: 2477: 2471: 2469: 2461: 2460: 2458: 2457: 2452: 2446: 2440: 2434: 2428: 2423: 2418: 2412: 2407: 2402: 2396: 2391: 2386: 2381: 2376: 2371: 2366: 2360: 2355: 2350: 2344: 2338: 2331: 2329: 2321: 2320: 2317: 2316: 2314: 2313: 2308: 2302: 2300: 2296: 2295: 2293: 2292: 2287: 2282: 2277: 2267: 2266: 2265: 2260: 2249: 2247: 2241: 2240: 2238: 2237: 2232: 2231: 2230: 2220: 2219: 2218: 2208: 2206:MicroVAX 78032 2203: 2197: 2195: 2189: 2188: 2186: 2185: 2180: 2175: 2172: 2168: 2166: 2157: 2144: 2143: 2136: 2134: 2132: 2131: 2125: 2119: 2113: 2106: 2104: 2100: 2099: 2094: 2092: 2091: 2084: 2077: 2069: 2063: 2062: 2046: 2041: 2035: 2029: 2023: 2016: 2015:External links 2013: 2012: 2011: 1998: 1983: 1980: 1977: 1976: 1965: 1953: 1941: 1929: 1917: 1905: 1893: 1881: 1866: 1848: 1845:on 2011-07-14. 1830: 1816: 1805: 1798: 1782:, ed. (1996). 1771: 1752: 1751: 1749: 1746: 1744: 1741: 1738: 1737: 1727: 1726: 1724: 1721: 1718: 1717: 1714: 1711: 1702: 1701: 1698: 1695: 1686: 1685: 1682: 1679: 1670: 1669: 1666: 1665:Reverse video 1663: 1654: 1653: 1650: 1647: 1638: 1637: 1634: 1631: 1622: 1621: 1618: 1615: 1606: 1605: 1602: 1599: 1590: 1589: 1586: 1583: 1574: 1573: 1570: 1569:Enable cursor 1567: 1558: 1557: 1554: 1551: 1542: 1541: 1538: 1535: 1523: 1522: 1519: 1516: 1504: 1503: 1486: 1483: 1474: 1473: 1470: 1467: 1451: 1448: 1425: 1424: 1421: 1418: 1409: 1408: 1405: 1402: 1392: 1389: 1386: 1385: 1383: 1378: 1375: 1372: 1369: 1366: 1363: 1360: 1357: 1354: 1351: 1348: 1345: 1342: 1339: 1336: 1332: 1331: 1328: 1325: 1322: 1319: 1316: 1311: 1306: 1303: 1298: 1293: 1290: 1287: 1284: 1281: 1278: 1276: 1272: 1271: 1264: 1257: 1255: 1253: 1251: 1249: 1247: 1245: 1243: 1241: 1239: 1237: 1235: 1233: 1231: 1229: 1225: 1224: 1221: 1218: 1215: 1212: 1209: 1206: 1203: 1200: 1197: 1194: 1191: 1188: 1185: 1182: 1179: 1176: 1163: 1160: 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10: 9: 6: 4: 3: 2: 3051: 3040: 3037: 3035: 3032: 3030: 3027: 3026: 3024: 3009: 3001: 2999: 2991: 2989: 2981: 2980: 2977: 2971: 2968: 2966: 2963: 2961: 2960: 2956: 2954: 2951: 2949: 2946: 2944: 2941: 2939: 2936: 2933: 2931: 2928: 2926: 2923: 2921: 2918: 2916: 2913: 2911: 2908: 2906: 2903: 2901: 2898: 2896: 2893: 2891: 2888: 2884: 2881: 2880: 2879: 2876: 2874: 2871: 2869: 2868: 2864: 2862: 2859: 2857: 2854: 2852: 2849: 2848: 2846: 2842: 2836: 2833: 2831: 2830:System Module 2828: 2826: 2823: 2821: 2818: 2816: 2813: 2811: 2808: 2806: 2803: 2801: 2798: 2796: 2793: 2791: 2788: 2786: 2783: 2781: 2778: 2776: 2773: 2771: 2768: 2766: 2763: 2761: 2758: 2756: 2753: 2751: 2748: 2747: 2745: 2743: 2738: 2732: 2729: 2727: 2724: 2722: 2719: 2717: 2714: 2712: 2709: 2707: 2704: 2702: 2699: 2697: 2694: 2693: 2691: 2689: 2688:Bus standards 2685: 2679: 2676: 2674: 2671: 2669: 2666: 2664: 2661: 2659: 2656: 2653: 2650: 2647: 2644: 2641: 2638: 2637: 2635: 2633: 2629: 2623: 2620: 2618: 2615: 2613: 2610: 2608: 2605: 2603: 2600: 2598: 2595: 2593: 2590: 2588: 2585: 2584: 2582: 2580: 2574: 2568: 2565: 2563: 2560: 2558: 2555: 2553: 2550: 2548: 2545: 2543: 2540: 2538: 2535: 2531: 2528: 2527: 2526: 2523: 2521: 2518: 2516: 2513: 2511: 2508: 2506: 2503: 2501: 2498: 2496: 2493: 2491: 2488: 2486: 2483: 2481: 2478: 2476: 2473: 2472: 2470: 2468: 2462: 2456: 2453: 2450: 2447: 2444: 2441: 2438: 2435: 2432: 2429: 2427: 2424: 2422: 2419: 2416: 2413: 2411: 2408: 2406: 2403: 2400: 2397: 2395: 2392: 2390: 2387: 2385: 2382: 2380: 2377: 2375: 2372: 2370: 2367: 2364: 2361: 2359: 2356: 2354: 2351: 2348: 2345: 2342: 2339: 2336: 2333: 2332: 2330: 2328: 2322: 2312: 2309: 2307: 2304: 2303: 2301: 2297: 2291: 2288: 2286: 2283: 2281: 2278: 2275: 2271: 2268: 2264: 2261: 2259: 2256: 2255: 2254: 2251: 2250: 2248: 2246: 2242: 2236: 2233: 2229: 2226: 2225: 2224: 2221: 2217: 2214: 2213: 2212: 2209: 2207: 2204: 2202: 2199: 2198: 2196: 2194: 2190: 2184: 2181: 2179: 2176: 2173: 2170: 2169: 2167: 2165: 2161: 2158: 2156: 2151: 2150:architectures 2145: 2140: 2129: 2128:Robert Palmer 2126: 2123: 2120: 2117: 2114: 2111: 2108: 2107: 2105: 2101: 2097: 2090: 2085: 2083: 2078: 2076: 2071: 2070: 2067: 2053: 2052: 2047: 2045: 2042: 2039: 2036: 2033: 2030: 2027: 2024: 2022: 2019: 2018: 2014: 2005: 2004: 1999: 1992: 1991: 1986: 1985: 1981: 1974: 1969: 1966: 1962: 1957: 1954: 1950: 1945: 1942: 1938: 1937:DECscope 1975 1933: 1930: 1926: 1921: 1918: 1914: 1913:DECscope 1975 1909: 1906: 1902: 1901:DECscope 1975 1897: 1894: 1891:, p. 14. 1890: 1889:DECscope 1975 1885: 1882: 1879:, p. 11. 1878: 1877:DECscope 1975 1873: 1871: 1867: 1862: 1858: 1852: 1849: 1844: 1840: 1834: 1831: 1826: 1820: 1817: 1814: 1809: 1806: 1801: 1795: 1791: 1787: 1786: 1781: 1775: 1772: 1767: 1763: 1757: 1754: 1747: 1742: 1732: 1729: 1722: 1715: 1712: 1704: 1703: 1699: 1696: 1688: 1687: 1683: 1681:Normal video 1680: 1672: 1671: 1667: 1664: 1656: 1655: 1651: 1648: 1640: 1639: 1635: 1632: 1624: 1623: 1619: 1616: 1608: 1607: 1603: 1600: 1592: 1591: 1587: 1584: 1576: 1575: 1571: 1568: 1560: 1559: 1555: 1552: 1544: 1543: 1539: 1536: 1525: 1524: 1520: 1517: 1506: 1505: 1487: 1485:Clear screen 1484: 1476: 1475: 1471: 1468: 1465: 1464: 1461: 1449: 1447: 1422: 1419: 1411: 1410: 1406: 1403: 1400: 1399: 1396: 1390: 1382: 1334: 1333: 1315: 1310: 1302: 1297: 1274: 1273: 1269: 1262: 1227: 1226: 1222: 1219: 1216: 1213: 1210: 1207: 1204: 1201: 1198: 1195: 1192: 1189: 1186: 1183: 1180: 1177: 1175: 1174: 1168: 1162:Graphics mode 1161: 1154: 1151: 1148: 1140: 1139: 1135: 1132: 1129: 1121: 1120: 1116: 1113: 1110: 1102: 1101: 1098:Available on 1097: 1094: 1091: 1088: 1087: 1084: 1078: 1063: 1052: 1049: 1048: 1036: 1025: 1022: 1021: 1009: 998: 995: 994: 990: 979: 976: 975: 972:With printer 971: 968: 965: 964: 961: 948: 946: 911: 904: 901: 898: 890: 889: 885: 882: 879: 871: 870: 866: 859: 856: 848: 847: 843: 816: 813: 805: 804: 800: 797: 794: 786: 785: 781: 774: 771: 757: 756: 752: 749: 746: 738: 737: 733: 730: 727: 719: 718: 714: 709: 706: 698: 697: 693: 690: 687: 679: 678: 674: 671: 668: 660: 659: 655: 652: 649: 641: 640: 636: 629: 626: 618: 617: 613: 610: 608:Cursor right 607: 599: 598: 594: 591: 588: 580: 579: 575: 570: 567: 559: 558: 555:Available on 554: 551: 548: 545: 544: 541: 535: 533: 531: 527: 523: 514: 512: 510: 506: 502: 498: 494: 490: 489:microcomputer 486: 478: 476: 473: 469: 465: 461: 457: 449: 447: 445: 441: 437: 433: 432:graphics mode 429: 425: 417: 415: 413: 409: 405: 387: 384: 380: 363: 336: 335: 334: 327: 325: 301: 297: 293: 285: 283: 281: 272: 267: 265: 263: 257: 255: 251: 247: 246:toilet tissue 242: 237: 235: 231: 226: 223: 219: 215: 210: 207: 203: 199: 195: 191: 187: 183: 179: 171: 169: 167: 162: 160: 156: 151: 149: 145: 141: 137: 133: 129: 125: 116: 113: 109: 106: 103: 99: 80: 76: 73: 70: 66: 63: 60: 56: 52:VT52 terminal 51: 46: 41: 33: 19: 2957: 2865: 2825:Star coupler 2721:TURBOchannel 2567:Digital UNIX 2346: 2118:(co-founder) 2056:, retrieved 2054:, 2019-08-20 2050: 2009:. DEC. 1975. 2002: 1996:. DEC. 1975. 1989: 1982:Bibliography 1968: 1956: 1944: 1932: 1927:, p. 3. 1920: 1908: 1896: 1884: 1860: 1851: 1843:the original 1833: 1819: 1808: 1784: 1774: 1765: 1756: 1731: 1601:Save cursor 1453: 1428: 1394: 1165: 1111:Copy screen 1082: 1079:Copier codes 952: 915: 688:Cursor home 627:Cursor left 589:Cursor down 539: 518: 507:, Digital's 485:minicomputer 482: 459: 455: 453: 431: 423: 421: 401: 331: 296:control keys 289: 276: 258: 241:electrolytic 238: 227: 211: 206:twisted-pair 175: 163: 154: 152: 147: 123: 121: 78:Release date 2577:Programming 2290:Alpha 21464 2285:Alpha 21364 2280:Alpha 21264 2270:Alpha 21164 2253:Alpha 21064 2122:Gordon Bell 1925:Copier 1975 1633:Clear line 864:if needed. 410:, KED, and 302:which sent 300:cursor keys 222:raster scan 172:Description 101:Predecessor 3023:Categories 2883:HP-Interex 2306:MicroPRISM 2155:processors 2103:Key people 2058:2020-01-11 1743:References 568:Cursor up 428:histograms 262:convection 2856:AltaVista 2760:DECwriter 2731:VAXBI bus 2678:Technical 2654:(Turkish) 2617:VAX MACRO 2579:languages 2465:Operating 2347:VT50/VT52 2327:terminals 2311:StrongARM 2110:Ken Olsen 2021:VT100 net 1790:MIT Press 1748:Citations 1713:Wrap off 1377:₉ 1374:₈ 1371:₇ 1368:₆ 1365:₅ 1362:₄ 1359:₃ 1356:₂ 1353:₁ 1350:₀ 234:'52 Chevy 168:in 1978. 111:Successor 58:Developer 2998:Category 2867:CPU Wars 2785:Gold key 2742:hardware 2668:RADIX 50 2607:MACRO-11 2602:MACRO-10 2325:Computer 2038:DEC VT62 2032:DEC VT55 2026:DEC VT52 1697:Wrap on 1472:Meaning 1420:setansi 1407:Meaning 1095:Meaning 831:key, an 552:Meaning 526:Atari ST 511:system. 440:plotters 404:Gold Key 385:display. 374:through 320:through 309:through 268:Versions 202:teletype 148:DECscope 3008:Commons 2920:PALcode 2805:PALcode 2775:Firefly 2755:DECtape 2750:DECtalk 2701:Massbus 2648:(Greek) 2587:BASIC-8 2547:VAX/VMS 2542:TOPS-20 2490:TOPS-10 2467:systems 2274:21164PC 393:⁄ 383:WYSIWYG 130:-based 91: ( 83: ( 2953:TD/SMP 2873:DECnet 2861:Compaq 2740:Other 2726:Unibus 2658:Hebrew 2557:Ultrix 2552:VAXELN 2537:DSM-11 2525:RSX-11 2520:RSTS/E 2510:DOS-11 2495:RSX-15 2480:4K DMS 2475:DECsys 2451:(1994) 2445:(1993) 2439:(1990) 2437:VT1000 2433:(1990) 2417:(1987) 2401:(1983) 2365:(1978) 2349:(1975) 2343:(1972) 2337:(1970) 2228:Mariah 2171:LSI-11 2164:PDP-11 1796:  996:VT50H 966:Model 829:SCROLL 795:ident 522:GEMDOS 491:. The 468:PDP-11 359:{ 347:} 194:RS-232 2970:WPS-8 2965:VT640 2938:Sixel 2930:ReGIS 2900:FX!32 2878:DECUS 2851:AdvFS 2795:LK421 2790:LK201 2706:Q-Bus 2612:MUMPS 2597:FOCAL 2592:DIBOL 2515:RT-11 2500:TSS/8 2455:VT525 2449:VT520 2443:VT510 2431:VT420 2426:VT340 2421:VT330 2415:VT320 2410:VT241 2405:VT240 2399:VT220 2394:VT180 2389:VT131 2384:VT105 2379:VT103 2374:VT102 2369:VT101 2363:VT100 2299:Other 2263:21068 2258:21066 2245:Alpha 2223:Rigel 2007:(PDF) 1994:(PDF) 1723:Notes 1533:# 1514:# 1469:Name 1466:Code 1404:Name 1401:Code 1092:Name 1089:Code 1050:VT55 1023:VT52 977:VT50 905:VT52 886:VT52 715:VT52 675:VT52 656:VT52 549:Name 546:Code 505:WPS-8 497:PDP-8 462:were 408:WPS-8 351:; 339:: 286:VT50H 166:VT100 159:ASCII 126:is a 115:VT100 89:/1975 32:VT-55 2835:TU81 2820:RL02 2815:RK05 2810:RA90 2562:MICA 2505:OS/8 2358:VT62 2353:VT55 2341:GT40 2335:VT05 2235:NVAX 2211:CVAX 2201:V-11 2183:J-11 2178:T-11 2174:F-11 1794:ISBN 1416:< 1268:NBSP 1261:NBSP 1155:All 1136:All 1117:All 953:The 928:and 916:The 895:> 867:All 844:All 839:XOFF 823:XOFF 801:All 753:All 734:All 694:All 614:All 576:All 501:OS/8 493:VT78 479:VT78 472:PROM 460:VT62 458:and 456:VT61 454:The 424:VT55 422:The 418:VT55 345:and 328:VT52 280:VT05 273:VT50 254:font 182:baud 155:VT52 144:VT05 124:VT50 122:The 105:VT05 93:1975 85:1974 81:1974 68:Type 38:VT52 18:VT55 2530:IAS 2485:COS 2216:SOC 2193:VAX 1706:ESC 1690:ESC 1674:ESC 1658:ESC 1642:ESC 1626:ESC 1610:ESC 1594:ESC 1578:ESC 1562:ESC 1546:ESC 1527:ESC 1508:ESC 1498:ESC 1492:ESC 1478:ESC 1438:ESC 1431:ESC 1413:ESC 1344:🭻 1341:🭺 1338:🭹 1335:7x 1330:🭸 1327:🭷 1324:🭶 1292:⁷⁄ 1289:⁵⁄ 1286:³⁄ 1283:¹⁄ 1275:6x 1228:5x 1142:ESC 1123:ESC 1104:ESC 1065:ESC 1054:ESC 1038:ESC 1027:ESC 1011:ESC 1000:ESC 981:ESC 955:ESC 934:ESC 918:ESC 892:ESC 873:ESC 862:XON 850:ESC 833:XON 807:ESC 788:ESC 759:ESC 740:ESC 721:ESC 700:ESC 681:ESC 662:ESC 643:ESC 620:ESC 601:ESC 582:ESC 561:ESC 438:or 412:EDT 366:ESC 357:or 315:ESC 304:ESC 180:at 128:CRT 50:DEC 3025:: 1869:^ 1859:. 1788:. 1764:. 1446:. 1347:▁ 1321:▔ 1318:↓ 1305:→ 1280:█ 1223:F 1220:E 1217:D 1214:C 1211:B 1208:A 1205:9 1202:8 1199:7 1196:6 1193:5 1190:4 1187:3 1184:2 1181:1 1178:0 634:. 632:BS 353:, 341:, 324:. 2276:) 2272:( 2152:, 2088:e 2081:t 2074:v 1863:. 1827:. 1802:. 1768:. 1709:w 1693:v 1677:q 1661:p 1645:o 1629:l 1613:k 1597:j 1581:f 1565:e 1549:d 1530:c 1511:b 1501:J 1495:H 1481:E 1457:Y 1444:Z 1441:/ 1434:Z 1381:¶ 1314:÷ 1309:… 1301:± 1296:° 1145:_ 1126:^ 1107:] 1071:E 1068:/ 1060:E 1057:/ 1044:L 1041:/ 1033:K 1030:/ 1017:J 1014:/ 1006:H 1003:/ 987:A 984:/ 958:Z 943:= 940:3 937:Y 930:3 926:= 921:Y 876:= 853:\ 810:[ 791:Z 768:c 765:r 762:Y 743:K 724:J 703:I 684:H 665:G 646:F 623:D 604:C 585:B 564:A 398:. 395:7 391:3 378:. 376:y 372:n 369:? 355:` 343:~ 322:R 318:P 311:D 307:A 95:) 87:) 34:. 20:)

Index

VT55
VT-55

DEC
Digital Equipment Corporation
Video terminal
VT05
VT100
CRT
computer terminal
Digital Equipment Corporation
control characters
VT05
ASCII
VT100
asynchronous communication
baud
bits per second
fill characters
RS-232
20mA current loop
teletype
twisted-pair
central processing unit
integrated circuits
raster scan
bell character
'52 Chevy
electrolytic
toilet tissue

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