Qué (quién) es Microsoft DOS - definición
FIRST MICROSOFT EMPLOYEE
MIDAS (operating system); Microsoft Interrupt Driven Asynchronous System; M-DOS; My DOS; Microsoft MIDAS; Microsoft MDOS; Marc B. McDonald
Microsoft DOS
![Command Prompt in [[Windows 10]]](https://commons.wikimedia.org/wiki/Special:FilePath/Command Prompt on Windows 10 RTM.png?width=200 "Command Prompt in [[Windows 10]]")
![MS-DOS 2.11 boot disk for the [[Leading Edge Model D]] in its sleeve](https://commons.wikimedia.org/wiki/Special:FilePath/Leading Edge Model D Boot Disk for MS-DOS 2.11.png?width=200 "MS-DOS 2.11 boot disk for the [[Leading Edge Model D]] in its sleeve")
.jpg?width=200 "German MS-DOS 6.2 Update")
![MS-DOS Prompt in [[Windows 95]]](https://commons.wikimedia.org/wiki/Special:FilePath/Microsoft Windows 95 Version 4.00.1111 command.com MS-DOS Prompt 492x259.png?width=200 "MS-DOS Prompt in [[Windows 95]]")
![MS-DOS 3.3C for the [[PC-9800 series]]](https://commons.wikimedia.org/wiki/Special:FilePath/NEC MS-DOS 3.3C.jpg?width=200 "MS-DOS 3.3C for the [[PC-9800 series]]")
![US Navy]] food service management system.](https://commons.wikimedia.org/wiki/Special:FilePath/US Navy 110129-N-7676W-152 Culinary Specialist 3rd Class John Smith uses the existing DOS-based food service management system aboard the aircraft.jpg?width=200 "US Navy]] food service management system.")
MICROSOFT OPERATING SYSTEM
MSDOS; Microsoft DOS; MS DOS; Microsoft Disk Operating System; Ms-dos; Microsoft MS-DOS; MsDOS; MSdos; MSN-DOS Prompt; MS/DOS; MS-DOS 6; MS-DOS 6.22; MS-DOS 7.10; SB-DOS; NCR-DOS; COMPAQ-DOS; Software Bus 86; Ms-Dos; Hebrew MS-DOS; Arabic MS-DOS; ADOS (MS-DOS); HDOS (MS-DOS); MS-DOS 3.2; MS-DOS 5.0; MS-DOS 4.01; MS-DOS 3.20; MS-DOS 5.00; MS-DOS 6.0; MS-DOS 6.00; MS-DOS 6.2; MS-DOS 6.20; MS-DOS 6.21; MS-DOS 7.00; MS-DOS 8.00; MS-DOS 3.0; MS-DOS 3.1; MS-DOS 3.3; MS-DOS 3.31; MS-DOS 3.30; MS-DOS 3.00; MS-DOS 3.10; MS-DOS 3.21; MS-DOS 3.25; MS-DOS 2; MS-DOS 2.00; MS-DOS 2.01; MS-DOS 2.10; MS-DOS 2.11; MS-DOS 2.50; MS-DOS 1.50; MS-DOS 1.51; MS-DOS 1.52; MS-DOS 1.53; MS-DOS 1.54; MS-DOS 1.25; MS-DOS 1.26; MS-DOS 1.27; MS-DOS 1.28; MS-DOS 1.29; MS-DOS 1.30; MS-DOS 1.40; MS-DOS 1.41; MS-DOS 1.20; MS-DOS 1.21; MS-DOS 1.22; MS-DOS 1.23; MS-DOS 1.24; MS-DOS 1.11; MS-DOS 1.12; MS-DOS 1.13; MS-DOS 1.14; ADOS (Microsoft); HDOS (Microsoft); MS-DOS 3.22; Access DOS; MS-DOS 3.4; MS-DOS 3.40; MS-DOS 2.13; TeleVideo PC DOS 2.11; TeleVideo Personal Computer DOS 2.11; TeleVideo PC DOS; TeleVideo Personal Computer DOS; Altos MS-DOS; Altos MS-DOS 2.11; MS-DOS 5.01; HDOS 5.0; Hebrew MS-DOS 5.0; Microsoft Hebrew MS-DOS; Microsoft Hebrew MS-DOS 5.0; Microsoft HDOS; Microsoft HDOS 5.0; Microsoft ADOS 5.0; Microsoft ADOS; Microsoft Arabic MS-DOS 5.0; Microsoft Arabic MS-DOS; Arabic MS-DOS 5.0; ADOS 5.0; ADOS 5.00; HDOS 5.00; ADOS 3.3; Microsoft ADOS 3.3; Microsoft Arabic MS-DOS 3.3; Arabic MS-DOS 3.3; Microsoft HDOS 3.3; Microsoft Hebrew MS-DOS 3.3; Hebrew MS-DOS 3.3; HDOS 3.3; MS-DOS 3.21R; MS-DOS 3.3R; MS-DOS 2.25; MS-DOS 2.12; MS-DOS 2.11R; MS-DOS 3.30R; Tandy MS-DOS 2.11R; MS-DOS 3.22R; Hewlett-Packard MS-DOS 3.22R; HP MS-DOS 3.22R; MS-DOS 3.3A; MS-DOS 3.30A; Microsoft MS-DOS 3.3A; Microsoft MS-DOS 3.30A; MS-DOS 3.3a; MS-DOS 3.30a; Microsoft MS-DOS 3.3a; Microsoft MS-DOS 3.30a; Texas Instruments MS-DOS 2.12; TI MS-DOS 2.12; Compaq MS-DOS 3.31; TI MS-DOS 3.3R; Texas Instruments MS-DOS 3.3R; TI MS-DOS 3.30R; Texas Instruments MS-DOS 3.30R; MS-DOS 2.0; MS-DOS 2.5; AST Premium Exec DOS 5.0; AST Premium Exec DOS; AST Premium Exec MS-DOS; AST MS-DOS 5.0; AST Premium Exec MS-DOS 5.0; MS-DOS 4.0 (IBM-developed); MS-ROMDOS; MS-DOS 4.00 (IBM-developed); MS-DOS 6.x; MS-DOS platforms; MS-DOS Mobile; MS DOS Mobile; TeleVideo Personal Computer DOS 2.0; TeleVideo PC DOS 2.0; MS-DOS 5.00A; MS-DOS 2.2; MS-DOS 2.20; MS-DOS 2.05; Disk Control Program; DCP (operating system); DCP 3.20; DCP 3.30; DCP 3.2; DCP 3.3; MS-DOS 1.2; MS-DOS 1.1; PC MS-DOS; MS-DOS 5; MS-DOS 3; MS-DOS 1; MS-DOS 3.30+; DCP1700; DCP1700 3.20; DCP1700 3.30; DCP 1700; DCP 1700 3.20; DCP 1700 3.30; DCP3.3; WDOS (operating system); MS-Dos
MS-DOS
MICROSOFT OPERATING SYSTEM
MSDOS; Microsoft DOS; MS DOS; Microsoft Disk Operating System; Ms-dos; Microsoft MS-DOS; MsDOS; MSdos; MSN-DOS Prompt; MS/DOS; MS-DOS 6; MS-DOS 6.22; MS-DOS 7.10; SB-DOS; NCR-DOS; COMPAQ-DOS; Software Bus 86; Ms-Dos; Hebrew MS-DOS; Arabic MS-DOS; ADOS (MS-DOS); HDOS (MS-DOS); MS-DOS 3.2; MS-DOS 5.0; MS-DOS 4.01; MS-DOS 3.20; MS-DOS 5.00; MS-DOS 6.0; MS-DOS 6.00; MS-DOS 6.2; MS-DOS 6.20; MS-DOS 6.21; MS-DOS 7.00; MS-DOS 8.00; MS-DOS 3.0; MS-DOS 3.1; MS-DOS 3.3; MS-DOS 3.31; MS-DOS 3.30; MS-DOS 3.00; MS-DOS 3.10; MS-DOS 3.21; MS-DOS 3.25; MS-DOS 2; MS-DOS 2.00; MS-DOS 2.01; MS-DOS 2.10; MS-DOS 2.11; MS-DOS 2.50; MS-DOS 1.50; MS-DOS 1.51; MS-DOS 1.52; MS-DOS 1.53; MS-DOS 1.54; MS-DOS 1.25; MS-DOS 1.26; MS-DOS 1.27; MS-DOS 1.28; MS-DOS 1.29; MS-DOS 1.30; MS-DOS 1.40; MS-DOS 1.41; MS-DOS 1.20; MS-DOS 1.21; MS-DOS 1.22; MS-DOS 1.23; MS-DOS 1.24; MS-DOS 1.11; MS-DOS 1.12; MS-DOS 1.13; MS-DOS 1.14; ADOS (Microsoft); HDOS (Microsoft); MS-DOS 3.22; Access DOS; MS-DOS 3.4; MS-DOS 3.40; MS-DOS 2.13; TeleVideo PC DOS 2.11; TeleVideo Personal Computer DOS 2.11; TeleVideo PC DOS; TeleVideo Personal Computer DOS; Altos MS-DOS; Altos MS-DOS 2.11; MS-DOS 5.01; HDOS 5.0; Hebrew MS-DOS 5.0; Microsoft Hebrew MS-DOS; Microsoft Hebrew MS-DOS 5.0; Microsoft HDOS; Microsoft HDOS 5.0; Microsoft ADOS 5.0; Microsoft ADOS; Microsoft Arabic MS-DOS 5.0; Microsoft Arabic MS-DOS; Arabic MS-DOS 5.0; ADOS 5.0; ADOS 5.00; HDOS 5.00; ADOS 3.3; Microsoft ADOS 3.3; Microsoft Arabic MS-DOS 3.3; Arabic MS-DOS 3.3; Microsoft HDOS 3.3; Microsoft Hebrew MS-DOS 3.3; Hebrew MS-DOS 3.3; HDOS 3.3; MS-DOS 3.21R; MS-DOS 3.3R; MS-DOS 2.25; MS-DOS 2.12; MS-DOS 2.11R; MS-DOS 3.30R; Tandy MS-DOS 2.11R; MS-DOS 3.22R; Hewlett-Packard MS-DOS 3.22R; HP MS-DOS 3.22R; MS-DOS 3.3A; MS-DOS 3.30A; Microsoft MS-DOS 3.3A; Microsoft MS-DOS 3.30A; MS-DOS 3.3a; MS-DOS 3.30a; Microsoft MS-DOS 3.3a; Microsoft MS-DOS 3.30a; Texas Instruments MS-DOS 2.12; TI MS-DOS 2.12; Compaq MS-DOS 3.31; TI MS-DOS 3.3R; Texas Instruments MS-DOS 3.3R; TI MS-DOS 3.30R; Texas Instruments MS-DOS 3.30R; MS-DOS 2.0; MS-DOS 2.5; AST Premium Exec DOS 5.0; AST Premium Exec DOS; AST Premium Exec MS-DOS; AST MS-DOS 5.0; AST Premium Exec MS-DOS 5.0; MS-DOS 4.0 (IBM-developed); MS-ROMDOS; MS-DOS 4.00 (IBM-developed); MS-DOS 6.x; MS-DOS platforms; MS-DOS Mobile; MS DOS Mobile; TeleVideo Personal Computer DOS 2.0; TeleVideo PC DOS 2.0; MS-DOS 5.00A; MS-DOS 2.2; MS-DOS 2.20; MS-DOS 2.05; Disk Control Program; DCP (operating system); DCP 3.20; DCP 3.30; DCP 3.2; DCP 3.3; MS-DOS 1.2; MS-DOS 1.1; PC MS-DOS; MS-DOS 5; MS-DOS 3; MS-DOS 1; MS-DOS 3.30+; DCP1700; DCP1700 3.20; DCP1700 3.30; DCP 1700; DCP 1700 3.20; DCP 1700 3.30; DCP3.3; WDOS (operating system); MS-Dos
MSDOS
MICROSOFT OPERATING SYSTEM
MSDOS; Microsoft DOS; MS DOS; Microsoft Disk Operating System; Ms-dos; Microsoft MS-DOS; MsDOS; MSdos; MSN-DOS Prompt; MS/DOS; MS-DOS 6; MS-DOS 6.22; MS-DOS 7.10; SB-DOS; NCR-DOS; COMPAQ-DOS; Software Bus 86; Ms-Dos; Hebrew MS-DOS; Arabic MS-DOS; ADOS (MS-DOS); HDOS (MS-DOS); MS-DOS 3.2; MS-DOS 5.0; MS-DOS 4.01; MS-DOS 3.20; MS-DOS 5.00; MS-DOS 6.0; MS-DOS 6.00; MS-DOS 6.2; MS-DOS 6.20; MS-DOS 6.21; MS-DOS 7.00; MS-DOS 8.00; MS-DOS 3.0; MS-DOS 3.1; MS-DOS 3.3; MS-DOS 3.31; MS-DOS 3.30; MS-DOS 3.00; MS-DOS 3.10; MS-DOS 3.21; MS-DOS 3.25; MS-DOS 2; MS-DOS 2.00; MS-DOS 2.01; MS-DOS 2.10; MS-DOS 2.11; MS-DOS 2.50; MS-DOS 1.50; MS-DOS 1.51; MS-DOS 1.52; MS-DOS 1.53; MS-DOS 1.54; MS-DOS 1.25; MS-DOS 1.26; MS-DOS 1.27; MS-DOS 1.28; MS-DOS 1.29; MS-DOS 1.30; MS-DOS 1.40; MS-DOS 1.41; MS-DOS 1.20; MS-DOS 1.21; MS-DOS 1.22; MS-DOS 1.23; MS-DOS 1.24; MS-DOS 1.11; MS-DOS 1.12; MS-DOS 1.13; MS-DOS 1.14; ADOS (Microsoft); HDOS (Microsoft); MS-DOS 3.22; Access DOS; MS-DOS 3.4; MS-DOS 3.40; MS-DOS 2.13; TeleVideo PC DOS 2.11; TeleVideo Personal Computer DOS 2.11; TeleVideo PC DOS; TeleVideo Personal Computer DOS; Altos MS-DOS; Altos MS-DOS 2.11; MS-DOS 5.01; HDOS 5.0; Hebrew MS-DOS 5.0; Microsoft Hebrew MS-DOS; Microsoft Hebrew MS-DOS 5.0; Microsoft HDOS; Microsoft HDOS 5.0; Microsoft ADOS 5.0; Microsoft ADOS; Microsoft Arabic MS-DOS 5.0; Microsoft Arabic MS-DOS; Arabic MS-DOS 5.0; ADOS 5.0; ADOS 5.00; HDOS 5.00; ADOS 3.3; Microsoft ADOS 3.3; Microsoft Arabic MS-DOS 3.3; Arabic MS-DOS 3.3; Microsoft HDOS 3.3; Microsoft Hebrew MS-DOS 3.3; Hebrew MS-DOS 3.3; HDOS 3.3; MS-DOS 3.21R; MS-DOS 3.3R; MS-DOS 2.25; MS-DOS 2.12; MS-DOS 2.11R; MS-DOS 3.30R; Tandy MS-DOS 2.11R; MS-DOS 3.22R; Hewlett-Packard MS-DOS 3.22R; HP MS-DOS 3.22R; MS-DOS 3.3A; MS-DOS 3.30A; Microsoft MS-DOS 3.3A; Microsoft MS-DOS 3.30A; MS-DOS 3.3a; MS-DOS 3.30a; Microsoft MS-DOS 3.3a; Microsoft MS-DOS 3.30a; Texas Instruments MS-DOS 2.12; TI MS-DOS 2.12; Compaq MS-DOS 3.31; TI MS-DOS 3.3R; Texas Instruments MS-DOS 3.3R; TI MS-DOS 3.30R; Texas Instruments MS-DOS 3.30R; MS-DOS 2.0; MS-DOS 2.5; AST Premium Exec DOS 5.0; AST Premium Exec DOS; AST Premium Exec MS-DOS; AST MS-DOS 5.0; AST Premium Exec MS-DOS 5.0; MS-DOS 4.0 (IBM-developed); MS-ROMDOS; MS-DOS 4.00 (IBM-developed); MS-DOS 6.x; MS-DOS platforms; MS-DOS Mobile; MS DOS Mobile; TeleVideo Personal Computer DOS 2.0; TeleVideo PC DOS 2.0; MS-DOS 5.00A; MS-DOS 2.2; MS-DOS 2.20; MS-DOS 2.05; Disk Control Program; DCP (operating system); DCP 3.20; DCP 3.30; DCP 3.2; DCP 3.3; MS-DOS 1.2; MS-DOS 1.1; PC MS-DOS; MS-DOS 5; MS-DOS 3; MS-DOS 1; MS-DOS 3.30+; DCP1700; DCP1700 3.20; DCP1700 3.30; DCP 1700; DCP 1700 3.20; DCP 1700 3.30; DCP3.3; WDOS (operating system); MS-Dos
MicroSoft Disk Operating System (Reference: MS, OS, PC)
Wikipedia
Marc McDonald
Marc B. McDonald is an American who was Microsoft's first salaried employee (not counting Monte Davidoff, who wrote the math package for BASIC for a flat fee).
He is credited with designing and implementing the 8-bit File Allocation Table file system for the NCR 8200 data-entry terminal and Microsoft's Standalone Disk BASIC-80 in 1977.
McDonald also developed an 8-bit operating system called M-DOS or MIDAS; the system itself was never released by Microsoft, but its file system (a variant of FAT) influenced Tim Paterson's QDOS.
A version of "Standalone Disk Basic" was ported to a Seattle Computer Products 8086 by Bob O'Rear, and Tim Paterson was often at Microsoft to aid in the effort. Tim Paterson copied the key aspects of the FAT system (single table, each directory entry containing the head of the file's cluster list, and the last value indicating the number of sectors used in the last cluster) when he implemented the FAT12 file system for his operating system 86-DOS in 1980, which became the basis for MS-DOS and PC DOS in 1981. He made two mistakes in implementation:
- In early versions there was no directory stopper entry. This resulted in reading the entire directory track to discover a file did not exist. On floppies this was a major slowdown.
- MS-DOS updates the directory entry and FAT tables in the wrong order when a file is created. By writing the directory first, if the system crashed before the FAT was updated, a dangling reference would be created. This results in a cross-linked file on the next cluster allocation.
McDonald left Microsoft in January 1984, citing a reason that the company had gotten "too big", Microsoft having around four hundred employees at that time. He was Asymetrix's first employee where he worked on a LISP pcode system used internally and redesigned the ToolBook runtime and compiler for ToolBook 3.0. At Design Intelligence, Marc worked on adaptive document design and an expression-based programming language used for layout experiments. He rejoined Microsoft in December 2000 when it bought Design Intelligence.
When McDonald rejoined Microsoft, a number of employees including Bill Gates and Steve Ballmer tried to assign him the employee number "1" but found that the human resources software did not allow this. Instead he was given a badge with all the digits scraped off except "1".
McDonald worked in the QA-oriented Windows Defect Prevention group, focusing on organizational best practices to drive software quality from the bottom up. He is co-author of The Practical Guide to Defect Prevention published in November 2007. He holds six software patents.
McDonald left Microsoft in September 2011. He was with startup MindMode Corp. through 2012, and has been at PaperG since.
Ejemplos de uso de Microsoft DOS
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