IBM PC DOS 1.0

Category: System
Year: 1981
Description:IBM PC-DOS 1.00 Released in 1981 by IBM For the IBM PC model 5150 Image quality: Verified as unmodified. This is the first version of IBM PC-DOS released by IBM for the IBM Personal Computer. It was based off of 86-DOS written by Tim Patterson for Seattle Computer Products machines, bought by Microsoft, and licensed to IBM. This version only supports single sided 5.25" (160K) floppy drives. It does not support hard drives or subdirectories. Although it may boot on some clones, the included BASIC requires IBM's BASIC in ROM. This archive includes one 160K disk image in ImageDisk, Raw, Teledisk, Transcopy, and PSI formats. Important: This disk image is formatted for DOS 1.x which may not be recognized by WinImage. We recommend you use ImageDisk to write this to a floppy disk, or use the Raw image with an emulator. DOS 1.x does not include the "55 AA" signature at the end of its boot sector. This signature was added later and intended for use with hard disks. However, many IBM PC clones will refuse to boot a floppy if this signature is not present. If you manually use a hex editor to add this signature to the boot sector, DOS 1.x will boot on most clones.
Manufacturer: IBM / Microsoft
Localization: EN
OS: DOS

Files to download

#24194IBM PC-DOS 1.00 (5.25-160k) - IBM - Aug. 1981.7z3.1 MB0xF031A259Fake?


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