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TOS/360 (Tape Operating System/360, not a DOS as such and not so called) was an IBM operating system for the System/360, used in the early days around 1965 to support the System/360 Model 30 and similar platforms. TOS, as per the "Tape" in the name, required a tape drive. It shared most of the code base [4] and some manuals [5] [6] with IBM's ...
DOS/360 (IBM's Disk Operating System) GEORGE 1 & 2 for ICT 1900 series; Mod 1 [7] Mod 2 [8] Mod 8 [9] MS/8 (Richard F. Lary's DEC PDP-8 system) MSOS (Mass Storage Operating System) [10] OS/360 (IBM's primary OS for its S/360 series) PCP and MFT (shipped) RAX; Remote Users of Shared Hardware (RUSH), a time-sharing system developed by Allen ...
Such signatures are also known as magic numbers or magic bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible. However, some file signatures can be recognizable when interpreted as text.
MSX-DOS and the extended BASIC with 3½-inch floppy disk support were simultaneously developed by Microsoft and ASCII Corporation as a software and hardware standard for the MSX home computer standard, to add disk capabilities to BASIC and to give the system a cheaper software medium than Memory Cartridges, and a more powerful storage system than cassette tape. [1]
Microsoft finally insisted that their operating system be called MS-DOS, and eventually everyone but IBM complied. [24] A June 1983 PC Magazine product review said "the Compaq comes with Microsoft's MS-DOS 1.1 operating system, which is almost identical to PC-DOS 1.1." [130] 1983: January
TOS/360 (similar to BOS above and more fleeting, able to boot and run from 2x00 series tape drives) DOS/360 (Disk Operating System (DOS), multi-programming system with up to 3 partitions, first commonly available OS for System/360)
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Mark "Zibo" Joseph Zbikowski (born March 21, 1956) is a former Microsoft Architect and an early computer hacker.He started working at the company only a few years after its inception, leading efforts in MS-DOS, OS/2, Cairo and Windows NT.