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- A disk operating system (DOS) is a computer operating system that requires a disk or other direct-access storage device as secondary storage. A DOS provides...11 KB (1,223 words) - 23:21, 19 December 2025
- DOS/360 and successors (redirect from IBM Disk Operating System/360)Disk Operating System/360, also DOS/360, or simply DOS, is the discontinued first member of a sequence of operating systems for IBM System/360, System/370...29 KB (3,650 words) - 04:20, 24 January 2026
- IBM PC DOS (an acronym for IBM Personal Computer Disk Operating System), also known as PC DOS or IBM DOS, is a discontinued disk operating system for...37 KB (3,561 words) - 04:20, 24 January 2026
- The IBM System/360 (S/360) is a family of computer systems announced by IBM on April 7, 1964, and delivered between 1965 and 1978. System/360 was the...84 KB (8,969 words) - 10:52, 9 November 2025
- The IBM System/36 (often abbreviated as S/36) was a midrange computer marketed by IBM from 1983 to 2000 - a multi-user, multi-tasking successor to the...21 KB (2,370 words) - 02:19, 19 October 2024
- MS-DOS (redirect from Microsoft Disk Operating System)"DOS" (which is also the generic acronym for disk operating system). MS-DOS was the main operating system for IBM PC compatibles during the 1980s, from which...95 KB (9,973 words) - 04:21, 24 January 2026
- IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. Both the hard disk drive (HDD)...75 KB (9,527 words) - 14:28, 7 November 2025
- DOS (redirect from MS-DOS compatible disk operating system)/dɔːs/) is a family of disk-based operating systems for IBM PC compatible computers. The DOS family primarily consists of IBM PC DOS and a rebranded version...56 KB (6,522 words) - 21:37, 24 January 2026
- 32/64 DIP DOS, the operating system of the Atari Portfolio DOS/360, 1966 IBM System/360 mainframe computer Disk Operating System DragonDOS, for the Dragon...5 KB (726 words) - 12:05, 26 January 2026
- first operating system to implement a journaling file system. IBM has continuously enhanced the software with features such as processor, disk, and network...58 KB (5,413 words) - 22:11, 18 December 2025
- succeeding the decimal IBM 1620 in that market segment. Typical installations included a 1 megabyte disk drive that stored the operating system, compilers and...85 KB (10,339 words) - 22:08, 23 December 2025
- floppy disk drive enclosure with one or two drives, and a detached daisy wheel printer, or Selectric typewriter printer. The primary operating system for...30 KB (3,147 words) - 00:58, 28 January 2026
- The IBM System/34 was an IBM midrange computer introduced in 1977. It was withdrawn from marketing in February 1985. It was a multi-user, multi-tasking...11 KB (936 words) - 16:09, 4 April 2025
- CP/M (redirect from Basic Disk Operating System)mass-market operating system created in 1974 for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc. CP/M is a disk operating system and...108 KB (11,305 words) - 09:53, 27 January 2026
- The IBM System/32 (IBM 5320) introduced in January 1975 was a midrange computer with built-in display screen, disk drives, printer, and database report...11 KB (1,019 words) - 21:30, 8 May 2025
- (Tape Operating System), as the name suggests, required a tape drive but no disk. It shared most of the code base and some manuals with IBM's DOS/360...17 KB (1,684 words) - 23:26, 14 September 2024
- the CP/M Operating System embedded right on the program disk. All you have to do to use these applications is to slip the disk into your IBM PC, turn...12 KB (1,282 words) - 22:00, 17 January 2026
- industrial control system based on FlexOS IBM 4680 OS, a POS operating system based on FlexOS IBM 4690 OS, a POS operating system based on FlexOS Toshiba...75 KB (8,497 words) - 07:05, 9 January 2026
- family of virtual machine operating systems used on IBM mainframes including the System/370, System/390, IBM Z and compatible systems. It replaced the older...52 KB (5,977 words) - 04:23, 24 January 2026
- in the history of 16-bit x86 DOS-family disk operating systems from 1980 to present. Non-x86 operating systems named "DOS" are not part of the scope of...239 KB (7,400 words) - 22:39, 13 December 2025
- with the operating program for use of the drum or disk channel. To avoid fatal conflicts between the supervisor and multiple users, the CTSS IBM 7090/94
- a disk drive. Hunter, David (1983). "The Roots of DOS". Retrieved on June 23, 2007. Archived Original Retrieved June 18, 2007 We needed an operating system
- disk, floppy disk, CD/DVD or other storage device. It is loaded by the computer's BIOS after the BIOS has initialized a small portion of the system's

