Smokeless Joe Posted August 16, 2014 Share Posted August 16, 2014 Looking at the OS ROM slots on my recently installed Ultimate 1MB, I see Stock XL, Stock XE, Q-Meg and Hi-Speed OS. What are these? I always thought the Stock XL and Stock XE OS were the same. What's the difference? I might have heard of Q-Meg, but Hi-Speed OS sounds kind of generic. What are these and why might I want to use them? Thanks for your patience with a noob, -Joe Quote Link to comment Share on other sites More sharing options...
Rybags Posted August 16, 2014 Share Posted August 16, 2014 Stock XL/XE - not sure, there were fairly subtle differences, later XE had Memory Test which would test extra 64K RAM of the 130XE. Unsure if that's which OS is included. QMeg - a modded OS (Quarter Meg) designed to work best with 256K or more RAM. Has some extra features useful to programmer/hackers. Should be some documentation around somewhere, fairly sure it could take a snapshot of working RAM which helped with dumping programs from memory. Hi-Speed - has high speed SIO built in, can be useful with some quicker drives or emulation devices like SIO2xx which support high speed I/O. Quote Link to comment Share on other sites More sharing options...
voy Posted August 16, 2014 Share Posted August 16, 2014 Stock XL = XL OS BB000001 rev. 2 Stock XE = XL OS BB000001 rev. 3 Q-Meg = Q-Meg+4.04 by Stefan Dorndorf Hi-Speed OS = XL OS BB000001 rev. 2 with Highspeed SIO patch by HiassofT Quote Link to comment Share on other sites More sharing options...
ACML Posted August 16, 2014 Share Posted August 16, 2014 (edited) The stock XE OS removed the 1200XL keyboard functionality (L1 & L2 LED and F1-F4 keys) that the stock XL OS had. Atari was still planning on releasing the 1400XL and 1450XLD when the 600/800XL came out and decided to leave the expanded keyboard and LED functionality in it. So if your install the Ultimate on a 1200XL, the stock XE OS won't utilize your extra keyboard functions. Edited August 16, 2014 by ACML 2 Quote Link to comment Share on other sites More sharing options...
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