Jump to content
Sign in to follow this  
Bruceleeon

Dos History

Recommended Posts

taken from - http://members.fortunecity.com/pcmuseum/dos.htm

1973

Gary Kildall writes a simple operating system in his PL/M language. He calls it CP/M (Control Program/Monitor).

(Control Program for Microcomputer)

1979

February

Apple Computer releases DOS 3.2.

July

Apple Computer releases DOS 3.2.1

1980

April

Tim Patterson begins writing an operating system for use with Seattle Computer Products' 8086-based computer.

Seattle Computer Products decides to make their own disk operating system (DOS), due to delays by Digital Research in releasing a CP/M-86 operating system.

August

QDOS 0.10 (Quick and Dirty Operating System) is shipped by Seattle Computer Products. Even though it had been created in only two man-months, the DOS worked surprisingly well. A week later, the EDLIN line editor was created. EDLIN was supposed to last only six months, before being replaced.

September

Tim Patterson shows Microsoft his 86-DOS, written for the 8086 chip.

October

Microsoft's Paul Allen contacts Seattle Computer Products' Tim Patterson, asking for the rights to sell SCP's DOS to an unnamed client (IBM). Microsoft pays less than US$100,000 for the right.

December

Seattle Computer Products renames QDOS to 86-DOS, releasing it as version 0.3. Microsoft then bought non-exclusive rights to market 86-DOS.

---

1981

February

MS-DOS runs for the first time on IBM's prototype microcomputer.

July

Microsoft buys all rights to DOS from Seattle Computer Products, and the name MS-DOS is adopted.

August

IBM announces the IBM 5150 PC Personal Computer, featuring a 4.77-MHz Intel 8088 CPU, 64KB RAM, 40KB ROM, one 5.25-inch floppy drive, and PC-DOS 1.0 (Microsoft's MS-DOS), for US$3000.

---

1982

May

Microsoft releases MS-DOS 1.1 to IBM, for the IBM PC. It supports 320KB double-sided floppy disk drives. Microsoft also releases MS-DOS 1.25, similar to 1.1 but for IBM-compatible computers.

---

1983

March

MS-DOS 2.0 for PCs is announced. It was written from scratch, supporting 10 MB hard drives, a tree-structured file system, and 360 KB floppy disks.

October

IBM introduces PC-DOS 2.1 with the IBM PCjr.

---

1984

March

Microsoft releases MS-DOS 2.1 for the IBM PCjr.

Microsoft releases MS-DOS 2.11. It includes enhancements to better allow conversion into different languages and date formats.

August

Microsoft releases MS-DOS 3.0 for PCs. It adds support for 1.2 MB floppy disks, and bigger (than 10 MB) hard disks.

November

Microsoft releases MS-DOS 3.1. It adds support for Microsoft networks.

---

1986

January

Microsoft releases MS-DOS 3.2. It adds support for 3.5-inch 720 KB floppy disk drives.

Microsoft releases MS-DOS 3.25.

---

1987

April

IBM announces DOS 3.3 for PCs, for US$120.

August

Microsoft ships MS-DOS 3.3.

November

Compaq ships MS-DOS 3.31 with support for over 32mb drives.

---

1988

Digital Research transforms CP/M into DR DOS.

June

Microsoft releases MS-DOS 4.0, including a graphical/mouse interface.

July

IBM ships DOS 4.0. It adds a shell menu interface and support for hard disk partitions over 32 MB.

November

Microsoft releases MS-DOS 4.01.

---

1990

April

Microsoft introduces Russian MS-DOS 4.01 for the Soviet market.

May

Digital Research releases DR DOS 5.0.

---

1991

June

Microsoft releases MS-DOS 5.0. It adds a full-screen editor, undelete and unformat utilities, and task swapping.

GW-BASIC is replaced with Qbasic, based on Microsoft's QuickBASIC.

September

Digital Research Inc. releases DR DOS 6.0, for US$100.

---

1993

March

Microsoft introduces the MS-DOS 6.0 Upgrade, including DoubleSpace disk compression. 1 million copies of the new and upgrade versions are sold through retail channels within the first 40 days.

November

Microsoft releases MS-DOS 6.2.

---

1994

February

Microsoft releases MS-DOS 6.21, removing DoubleSpace disk compression.

April

IBM releases PC-DOS 6.3.

June

Microsoft releases MS-DOS 6.22, bringing back disk compression under the name DriveSpace.

---

1995

February

IBM announces PC DOS 7, with integrated data compression from Stac Electronics (Stacker).

April

IBM releases PC DOS 7.

---

In August of 1995 Microsoft introduces Windows 95, it includes MS DOS 7.0 but it's clear that DOS is going to die a slow death.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

×