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Summary
AT&T/Teletype 5620 Dot Mapped Display Terminal
The 5620 was the first commercial version of Rob Pike’s BLIT terminal. The original BLIT design used a common Motorola 68000 microprocessor. Since Western Electric, an AT&T subsidiary, was in the microprocessor business, the 5620 used a Western Electric WE32000 microprocessor instead. Later models, the 630 and 730, reverted to the 68000.
Specs
* 15 " diagonal screen (10.24" x 8" visible)
* 1024 x 800 dots (100 dots/inch horizontal and vertical)
* High persistance P39 green phosphor
* BELLMAC-32 microprocessor based
- Full 32-bit non-multiplexed data and address paths
- Large instruction set
- Virtual memory capability with 4 levels of protection
* 256K RAM, 64K EPROM
* Low-profile (30 mm) keyboard with numeric pad and 8 PF keys
* Mouse
* UNIX (System V)-based software
- Multiplexor which provides up to six concurrent `windows'
of arbitrary size on the screen, each appearing to
the UNIX host as a separate virtual terminal.
Optional downloaded terminal process under control
of terminal operating system associated with each
window.
- Mouse-based text editor
- BELLMAC software development system
- C cross compiler and tools
- Terminal debugger highly integrated with C compiler
- Downloader
- Tektronix 4014 emulation
- Font Editor
- TROFF preview facility
- Picture editor produces TROFF input text for preparing
document figures.
Sources
http://www.anonymous-insider.net/unix/research/1983/0624.html
http://www.brouhaha.com/~eric/retrocomputing/att/5620/5620_faq.html