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Originally MS-DOS was designed to be an operating system that could run on any computer with a 8086-family microprocessor.It competed with other operating systems written for such computers, such as CP/M-86 and UCSD Pascal.
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 ...
Bundled with hardware up to version 3.0 (Amiga International hardware came with 3.1); versions 2.1, 3.0, 3.1, 3.5, 3.9 and the more recent 3.2 (2021) also available as separate packages Proprietary, open source clone available under AROS Public License Workstation, personal computer: AmigaOS 4: Hyperion Entertainment 2004 AmigaOS classic
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PDP-6 Monitor OS/3x0 FS: IBM: 1964 OS/360: Level-D DEC: 1968 TOPS-10: George 3 ICT (later ICL) 1968 George 3: Version 6 Unix file system (V6FS) Bell Labs: 1972 Version 6 Unix: RT-11 file system DEC: 1973 RT-11: Disk Operating System GEC: 1973 Core Operating System CP/M file system: Digital Research (Gary Kildall) 1974 CP/M [1] [2] ODS-1: DEC ...
[26]: 110 The Basic Assembler is a slightly more restricted version of System/360 Basic Assembler; [27] notably, symbols are restricted to four characters in length. This version is capable of running on a system with 4 KB memory, and macro support is limited to IOCS macros. The card versions are two-pass assemblers that only support card input ...
An instruction set architecture (ISA) is an abstract model of a computer, also referred to as computer architecture.A realization of an ISA is called an implementation.An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware.
The difference is an exact number of quarters of an hour up to 95 (same minutes modulo 15 and seconds) if the file was transported across zones; there is also a one-hour difference within a single zone caused by the transition between standard time and daylight saving time (DST). Some, but not all, file comparison and synchronisation software ...