TOS
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TOS stand for The Operating System, and was the operating system distributed with all members of the TOS Family of computers manufactured by Atari. TOS was distributed on ROMs mounted on the motherboard. It was loaded from these ROM's at boot time.
TOS was a single-tasking operating system at the kernel level, but this kernel did develop into the multi-tasking MultiTOS in 1993. Today the MiNT kernel continues to be developed as a descendant of MultiTOS. It is complemented by modern interface implementations in the form of MyAES and XaAes
See also History of Atari TOS (which may need to be merged with this article)
Components
TOS is a collective of numerous operating system components. From XBIOS at the hardware-interface level, through to GEM at the GUI level. GEM is in turn made up of VDI and AES
Versions
TOS 1
1.0 Original ST
1.02 STF and STMF
1.04 Nick-named "Rainbow TOS" for the cycling rainbow graphic shown when viewing TOS information under the File menu. Used in the Mega ST and later STFM's. Support for blitter to accelerate graphic operations
1.06 First STE's
Hard drive bug Had behaviour of not only corrupting certain hard drives when connected through the ACSI port, but could damage the hardware permanently
1.62 Second revision for STE's, bug fixes including hard drive bug fix.
TOS 2
Mega STE 2.02
2.05
2.06
TOS 3
Used in TT, written for 68030 3.01
3.05
3.06
TOS 4
Developed for the Falcon
4.00
4.01
4.02
4.04
4.92 Unofficial release, leaked after Atari had stopped producing computers. Some advanced features but unstable.
Alternatives
What else this article can cover
- Number of replacements, eg KaosTos
- Different layers (GEM layer on lower level componets - BIOS, XBIOS)
- Thought to unofficially stand for Tramiel Operating System, however this has never been proven.
External Links
Wikipedia link