Talk:Disk operating system

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DOS component separate in early days of computing?[edit]

The article now says "In the early days of computing, hard drive space was often limited, so the disk operating system was an extension of the operating system. This component was only loaded if it was needed. Otherwise, disk-access would be limited to low-level operations such as reading and writing disks at the sector-level." Is that referring to the "early days of computing" in the sense of the 1950's and early-to-mid 1960's, or to the "early days of computing" in the sense of the early days of microcomputing? DOS/360 was a full OS, not an extension to a base OS, loaded only when needed. Guy Harris 20:50, 21 January 2006 (UTC)

This refers to the early days of microcomputing (home computers). I have changed computing to microcomputing in the paragraph you quoted. I have also made more of a distinction between operating-system components called "disk operating systems" and operating systems called "Disk Operating System" (eg. DOS/360). Ae-a 15:45, 25 January 2006 (UTC)

Dave's Operating System[edit]

Moved from article page Redrose64 (talk) 20:37, 2 January 2012 (UTC)

My understanding of DOS is that it originally meant "Dave's Operating System". Dave was a realator in San Francisco who played with computers as a hobby. When Bill Gates signed the deal with IBM for an operating system, he did not have one. He was however aware of Dave's system. Unlike Gate's licensing deal with IBM, Gate bought the operating system for $25,000 from Dave. The system was really in the infant stages but it immedialely gave Microsoft a platform to develop "DOS, Disk Operating System.

I obtained this information first from a PBS TV program and since have talked with several former IBM employees who confirmed the story. I would say that it still needs further investigation for accuracy, however if true is a fascinating insight on how Microsoft started. Capn BJ —Preceding unsigned comment added by 166.248.73.119 (talk) 16:47, 31 December 2011‎

I'm afraid, you are mixing up a few things here. You are talking about Microsoft and MS-DOS, however, the term "DOS" for Disk Operating System long pre-dates the advent of MS-DOS, and was used by many operating systems completely unrelated to MS-DOS at the time (and that's what this article is about). Also, the operating system offered by Microsoft as MS-DOS (and by IBM as PC DOS) had its origins in 86-DOS, an operating system developed by Tim Paterson of Seattle Computer Products (SCP) as a rudimentary clone of Digital Research's CP/M (aka CP/M-80), but ported to run on 8080/8086 processors (and with two significant differences: a different disk buffer mechanism and the introduction of the FAT12 filesystem), whereas Digital Research's CP/M itself was only available for 8080/Z80 processors. CP/M-86 for 8086/8088 processors was not available when 86-DOS development started in 1979 (still called QDOS at this time), but it was available in 1981 at about the same time as IBM began shipping the IBM PC. If you are interested in the early history of MS-DOS, please make yourself familiar with 86-DOS. --Matthiaspaul (talk) 21:30, 2 January 2012 (UTC)