Questions tagged [atari]
For questions about different versions of, and products for, Atari consoles and home computers.
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Using the reset button to enable double firing in Space Invaders on the Atari VCS\Atari 2600: was it a glitch or a hidden feature?
As a kid a favorite game was Space Invaders on Atari (I'm guessing it was a 2600, it was the late 70s to early 80s). In addition to fast reflexes I had a card up my sleeve that secured me high scores: ...
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Atari SIO vs IEEE 488
When Atari was designing the 800 series of computers, they needed a way to connect peripherals. To comply with FCC regulations on RF emission, it needed shielded cables. To achieve low cost of entry ...
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Did Atari lobby against FCC regulation change?
In the 1970s, FCC limits on RF emissions applied to 'anything that plugs into a TV', and were stringent and difficult to pass. Atari went to extraordinary lengths regarding this when designing their ...
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Was it possible to give an Atari 800 (not XL) 64KB of RAM?
The original Atari 800 could have up to 48K of RAM installed through the use of memory cards. When the 800XL came out, it was now possible to have up to 64K of RAM by disabling the BASIC ROM.
After ...
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How does the Atari ST's VDI polygon filling algorithm work?
I recently noticed something in Neochrome as well as Larry Mears' "Instant Graphics and Sound" programs: Polygons have slightly different shapes depending on whether an outline is drawn or ...
- 291
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Atari 1040 STFM power supply issue & high-pitch noise
I have an Atari 1040 STFM that's been sitting in the basement for about 30 years. It doesn't power on. The power indicator light is not illuminated and there's a high-pitch noise coming from the power ...
- 121
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In what sense would the Atari 3200 have been a 10-bit machine?
The Atari 3200 was a canceled project that would have produced a compatible successor to the 2600. Little seems to be known about it; about the best reference I have been able to find is https://...
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Atari SM144 Horizontal lines after turning off then on
I recently bought an Atari SM144 monochrome monitor so I could play with an old Atari ST. It works to a certain degree, it turns on all good and I can play for a while, but after some time it gives ...
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How did Atari RF output work?
I know that RF stands for radio frequency but what chip in the Atari handles the video output and does anybody know if something similar would work on a modern tv?
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When were Player/Missile graphics in Atari computers first documented?
The Atari 400 and 800 came out in 1979. The hardware included the ability to overlay sprites ("players" and the smaller "missiles") over the display. AFAIK, this capability is ...
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What is the CMOS cache battery on the Atari STacy motherboard?
I am restoring an Atari STacy, and it is a notoriously hard device to open — I am planning to replace the floppy drive and internal CMOS battery in one go... but while I know the floppy is an Epson ...
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Why was Atari Tank less cloned?
The first commercially successful arcade video game was Pong in 1972. According to https://en.wikipedia.org/wiki/Arcade_video_game the number of units eventually sold was about 19,000. (A lower figure ...
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When was the 6502 second sourced?
According to https://en.wikipedia.org/wiki/Second_source
MOS Technology licensed Rockwell and Synertek to second-source the 6502 microprocessor and its support components.
This makes sense; the 6502 ...
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Why did the Atari 5200 revert to only two controller ports?
The Atari 5200, released in 1982, had four controller ports, an unusual feature which as far as I know had never been seen before, and would not be seen again until the late nineties.
The 1983 ...
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Why did Atari floppies run at 288 RPM?
Atari floppy drives for the 8-bit series, the 810 and 1050 specifically, ran at 288 RPM rather than 300. I can't imagine why this might be, and my google-fu fails to turn up a reason.
Worth noting ...
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