INDEX
Atari Personal Computers
Model Specifics
Keyboards
SIO
Stories:The Saga of Yap
Atari Computers:
Picture Gallery soon.
This site does not have information on using STs or PCs to emulate the A8 computer hardware. Follow links to sites that do.
Here is a FAQ that answers a lot of questions(booting, compatability, models).
Here is a FAQ that can help fix problems(won't turn on, stay in self test, keyboard troubles).
Model Specifics:
400:
Memory Upgrades:
400 to 64K:is HERE, 9K text. And a diagram: PIC- 27K (01may00)
Another of the many upgrades in the Windhover Project newsletters: 400 to 64K.
800:
Memory Upgrades:
800 to 256K:is HERE, 12K text. And a diagram: PIC- 32K (07feb02)
This is one of the many upgrades in the Windhover Project newsletters: 800 to 256K ramboard.
600XL:
Memory Upgrades:
600XL to 64K (2 Dram):is HERE, 3K text. (16Jun2K RLD) Wiring diagram ...HERE.
A very short text file on upgrading the 600XL from 16K to 64K. 256K upgrades were done, but I don't yet have info.
800XL/1200XL:
Memory Upgrades:
800XL/1200XL to 1 Meg (Wooley, SIMM):is HERE. (22Oct01 REW/MISC).
A reprint from SLCC-Bob Wooleys info on upgrading to 1 meg using a 30 pin SIMM. Includes a simm pinout.
Or you can DL SIMM UPGRADE.ZIP (528K) for this webpage with high res pics.
800XL/1200XL to 1 Meg(NEWLL, 8 Dram):is HERE. (23Aug02)
Here is a copy of the instructions for installing the Wes Newell 1 Meg memory upgrade. Also a later fix he added for replacing the boot switch for the diagnostic rom-works with XL and XE, 1 meg upgrades.
65XE:
Memory Upgrades:
This computer is very similar to an 800XL.
A Scott Peterson reprint coming soon.
130XE:
Memory Upgrades:
130XE to 320K:is (8 Dram version):HERE. This is the reprint from Text for this from Windhover Newsletter 1985(aka Peterson upgrade(date?)). Updated(Mar06) drawing by me is ...HERE. Note that many OCRed versions have errors.
130XE to 320K(2 Dram version):Uses the same basic instructions as the 8 Dram version, but the 4 bit 256K chips have an entirely different pinout, not just drop in. So I did a PCB to make this easy. If the high bank 2 Drams are socketed, then just 4 wires to solder. Instructions. Wiring. Installed.
130 XE to 1 Meg (SIMM):is HERE. (22Oct01 REW/MISC)
Here is a reprint from SLCC-Bob Wooleys info on upgrading to 1 meg using a 30 pin SIMM. Includes a simm pinout.
Or you can DL SIMM UPGRADE.ZIP (528K) for this webpage with high res pics.
XEGS:
Memory Upgrades:
An RLD Modified version of a Scott Peterson reprint is being investigated. So far, looks more like an 800XL in memory, so its more complex, but still 2 drams to replace.
For now, here are pictures of the main board: Front - Back.
Keyboards:
Ps/2 to Atari
Keyboard adapter. 20Apr10:Site gone, will link to a partial copy soon.
Keyboard wiring grid.(RLD)
Soon, a short FAQ on cleaning and repairing keyboard mylars.
SIO:
Here is an article I found associated with Draco, that I can't locate again. Draco.txt.
Other references can be found in:De re Atari(8-33), Operating System Reference(section 9), Mapping the Atari, Analog magazine:Atari Zuchinni, April88, May88, July88.
I do have links and info on using STs and PCs as Atari 8 peripherals at..virtual sio
PBI:Wikipedia
Stories:
First up:"The Saga of Yap" by Dave Small, from Current Notes. [04Oct99]
Video:
Here is an interesting tidbit about Atari and S-video:wikipedia.
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