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| Developer | Iskra Soft |
|---|---|
| Working state | current |
| Source model | Closed |
| Initial release | 1990; 34 years ago (1990) |
| Package manager | None |
| Platforms | Russian ZX Spectrum clones |
| Kernel type | Monolithic |
| Influenced by | TR-DOS |
| Official website | trd |
iS-DOS[1][2] is a disk operating system (DOS) for Soviet/Russian ZX Spectrum clones. iS-DOS was developed in 1990 or 1991, by Iskra Soft, in Leningrad, Soviet Union, now Saint Petersburg, Russia.
It handles floppy disks (double sided, double density), hard disk drives, and CD-ROMs. Maximum iS-DOS disk partitioning size on a hard disk is 16 MiB.
Unlike TR-DOS, iS-DOS is resident in random-access memory (RAM), and thus reduces the amount of memory available for user programs.
iS-DOS Chic[2] is a version developed for the Nemo KAY.[3] It provides more memory for user programs.
TASiS[2], based on iS-DOS Chic, is a modern version developed by NedoPC for the ATM Turbo 2+ in 2006,[4][5] supports the enhanced text mode and larger memory of that model.
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Russian operating systems
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| Unix, Unix-like |
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| DOS |
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| Other |
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