Colossal Typewriter

Colossal Typewriter by John McCarthy and Roland Silver was one of the earliest computer text editors.^[1] The program ran on the PDP-1 at Bolt, Beranek and Newman (BBN) by December 1960.^[2][3]

Colossal Typewriter

DEC PDP-1 at the Computer History Museum
Original author(s)	John McCarthy and Roland Silver
Initial release	1960
Platform	PDP-1 and possibly TX-0
Type	Text editor
Website	PDP-1 Restoration Project

About this time, both authors were associated with the Massachusetts Institute of Technology, but it is unclear whether the editor ran on the TX-0 on loan to MIT from Lincoln Laboratory or on the PDP-1 donated to MIT in 1961 by Digital Equipment Corporation. A "Colossal Typewriter Program" is in the BBN Program Library,^[2] and, under the same name, in the DECUS Program Library as BBN- 6 (CT).^[4]

See also

• Expensive Typewriter
• TECO
• RUNOFF
• TJ-2