Difference between revisions of "VT52"
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| − | + | The '''VT52''' was a very popular [[video terminal]] by [[Digital Equipment Corporation|DEC]], introduced 1975. The [[cathode ray tube|CRT]] displays 24 lines of 80 characters in both upper and lower case. | |
[[Image:vt52.jpg|thumb|right|VT52 terminal]] | [[Image:vt52.jpg|thumb|right|VT52 terminal]] | ||
| − | It uses a custom processor built from [[TTL]] parts to execute 1024 words of 8-bit wide microcode. The data path is 7 bits wide, as is the 2048-word RAM. The predecessor VT50 is almost identical, except there is only 512 words of microcode, 1024 words of RAM, the CRT display 12 lines, and text is upper case only. | + | It uses a custom processor built from [[transistor-transistor logic|TTL]] parts to execute 1024 words of 8-bit wide [[microcode]]. The [[data path]] is 7 bits wide, as is the 2048-word [[Random Access Memory|RAM]]. The predecessor VT50 is almost identical, except there is only 512 words of microcode, 1024 words of RAM, the CRT display 12 lines, and text is upper case only. |
A VT52-compatible terminal emulator was used in the [[Atari]] [[Atari TOS|TOS]] [[operating system]]. | A VT52-compatible terminal emulator was used in the [[Atari]] [[Atari TOS|TOS]] [[operating system]]. | ||
Revision as of 02:03, 6 March 2023
The VT52 was a very popular video terminal by DEC, introduced 1975. The CRT displays 24 lines of 80 characters in both upper and lower case.
It uses a custom processor built from TTL parts to execute 1024 words of 8-bit wide microcode. The data path is 7 bits wide, as is the 2048-word RAM. The predecessor VT50 is almost identical, except there is only 512 words of microcode, 1024 words of RAM, the CRT display 12 lines, and text is upper case only.
A VT52-compatible terminal emulator was used in the Atari TOS operating system.
External links
- DECscope Users' Manual (EK-VT5X-OP-001)
- VT52 DECscope Maintenance Manual (EK-VT52-MM-002)
- VT52 Field Maintenance Print Set (MP00035)
- Microcode ROM images
- Character generator ROM image
- VT52 hardware simulation
| v • d • e DEC Terminals and Printers |
|---|
| Hardcopy Terminals - DECwriter • DECwriter II • DECwriter III • DECwriter IV
CRT Terminals - VT05 • VT52 • VT100 • VT220 • VT240 • VT320 Monitors - VR201 |
