Difference between revisions of "Atari ST"
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Revision as of 03:09, 16 April 2018
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The Atari ST was a series of computers from Atari. "ST" stood for "SixTeen", referring to its Motorola 68000 CPU having a 16-bit data bus. "Mega ST", "STm", "STfm" and "STe" noted different hardware variations. The Atari TT (ThirtyTwo) and Atari Falcon had 32-bit data buses.
It was especially popular among musicians because all models included also a MIDI interface as standard.
Interface
The keyboard uses a proprietary serial protocol at 7812.5 Baud (500 KHz ÷ 64) to a 6301 microcontroller. The keyboard has two D-subminiature DE-9 ports, of which the first is for the mouse and both can be used for Atari-compatible joysticks. The keyboard controller also has a realtime clock with one-second accuracy.[1]
Variations
Silitek
Silitek dome with slider: slider over individual rubber domes with conductive rubber on PCB. Silitek as an OEM is not confirmed, but the keyboards match Silitek's patented switch design.
The keycap mount is a cruciform mount but not Cherry MX-compatible. Keycaps are double-shot light grey with brown letters, or on the Atari Falcon: dark grey with light letters. Most keys have cylindrical profile except for the backwards-L Return key which has a spherical profile.
The key feel is very mushy (at least today) and the keys are wider than standard (which can impair typing accuracy).
Confirmed in the Atari ST FM,[2] but also reported to be the type found in the Atari 520 ST, 1040 ST, STF, STFM, STE and Falcon.[3]
Mitsumi
The Mega STE has been found with a Mitsumi KPQ Type keyboard.[4]
Cherry
It appears that the Mega ST shipped with a Cherry MX Black keyboard.[5]
See also
- Commodore Amiga — The Atari ST's main competitor
References
- ↑ K. Gerits, L. Englisch, R. Bruckmann — Atari ST Internals, 3d Edition. 1988. ISBN 0-916439-46-1
- ↑ Atari-Forum — [PICS] Keyboard LED replacement
- ↑ eBay — Atari 520 1040 ST STF STFM STE Falcon keyboard Letter Plunger And Connector [Volatile reference]
- ↑ AtariAge Forums — My Mega STE restoration......or just clean up ?
- ↑ WUDSN — Revision 2017 - Atari Mega ST
