History of the OS

single-stream batch processing systems

Jan 1, 1955

The General Motors Research Laboratories implemented the first operating systems for their IBM 701.

SHARE Operating System (SOS)

Sep 17, 1959

An improvement of the GM-NAA I/O. Provided new methods to manage buffers and input/output devices, allowed execution of programs written in assembly language.

Batch processing systems

Jan 1, 1960

Able to runseveral jobs at once.

GCOS

Sep 17, 1962

Originally called GECOS (the General Electric Comprehensive Operating Supervisor). Still used today in its most recent version (GCOS 8)by Honeywell and Groupe Bull.

BATCH-11/DOS-11 (DOS-11)

Sep 17, 1970

The first operating system to run on the Digital PDP-11 minicomputer.

SINTRAN III

Sep 17, 1974

Created by Norsk Data Brand NORD PL.Programs "LIST-FILES" "PED H-W:" "HELLO-WORLD:SYMB"

Apple SOS

Sep 17, 1980

The primary operating system developed for the Apple III computer. The system was developed by Apple Computer, Inc.

Microsoft Windows 1.0

Sep 17, 1985

developed by Microsoft Corporation.

Linux kernel

Sep 17, 1991

By the Linux family of Unix-like operating systems.[ released under the GNU General Public License version 2 (GPLv2) (plus some firmware images with various non-free licenses)

Windows 95

Sep 17, 1995

It was released on August 24, 1995 by Microsoft.

Mac OS 9

Sep 17, 1999

The final major release of Apple's Classic Mac OS operating system. Free online.