O26 was a

text editor A text editor is a type of computer program that edits plain text. Such programs are sometimes known as "notepad" software (e.g. Windows Notepad). Text editors are provided with operating systems and software development packages, and can be ...

named after the IBM model 026 keypunch (the first character being an alphabetic "O" rather than numeric "0" due to operating system restrictions). The editor could be run on the

CDC 6000 series The CDC 6000 series is a discontinued family of mainframe computers manufactured by Control Data Corporation in the 1960s. It consisted of the CDC 6200, CDC 6300, CDC 6400, CDC 6500, CDC 6600 and CDC 6700 computers, which were all extremely rapid ...

, and later Cyber-70 and -170 series operator consoles. According to

source code In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the w ...

listings of the

SCOPE Scope or scopes may refer to: People with the surname * Jamie Scope (born 1986), English footballer * John T. Scopes (1900–1970), central figure in the Scopes Trial regarding the teaching of evolution Arts, media, and entertainment * Cinem ...

version of O26, it was written in 1967 by CDC programmers Greg Mansfield and David Cahlander.

Other early CDC full-screen editors

An independently developed full screen editor was written in 1967 by Edgar T. Irons and Franz M. Djorup at the Institute for Defense Analyses to run on a

CDC 6600 The CDC 6600 was the flagship of the 6000 series of mainframe computer systems manufactured by Control Data Corporation. Generally considered to be the first successful supercomputer, it outperformed the industry's prior recordholder, the IBM ...

. This editor was described in a later ACM article as operating ''"from low-cost cathode-ray tube entry and display stations with keyboard and 13 function buttons."'' The terminals used were CDC 210 display terminals, specially modified with extra function keys. The IDA editor (name not given in the paper) ran on IDA's homegrown

time-sharing In computing, time-sharing is the sharing of a computing resource among many users at the same time by means of multiprogramming and multi-tasking.DEC Timesharing (1965), by Peter Clark, The DEC Professional, Volume 1, Number 1 Its emergence ...

system known as IDA-CRD.

References

External links

Desktop CYBER Emulator Screenshots
{{Control Data Corporation Control Data Corporation mainframe software Text editors