IBM Displaywriter System

IBM Displaywriter with keyboard, CPU, monitor, and dual-drive 8in floppy disk "toaster"

The IBM Displaywriter System 6580 was a dedicated microcomputer-based word processing machine that IBM's Office Products Division introduced in June 1980.[1][2] The system consisted of a central processing unit, based on the Intel 8086, in a desktop case, a monochrome CRT monitor atop the CPU, a detached keyboard, a detached dual disk drive that used 8-inch floppy disks, and a detached daisy wheel printer. The system booted from an 8-inch floppy disk that stored IBM's internally developed word processing software. The operator stored the "documents" (i.e., data files) on additional diskettes.

"A basic system — consisting of a display with a typewriter-like keyboard and a logic unit, a printer and a device to record and read diskettes capable of storing more than 100 pages of average text — cost $7,895 and leased for $275 a month."[1] The basic word-processing software was Textpack E, with simple mail merge; Textpack 2 added support for double-sided disks, networking, spellchecking, and print spooling; Textpack 4 added automatic hyphenation, columns, and more sophisticated merging; and Textpack 6 added automatic footnoting and outlining. Other options included multilingual dictionaries, graphics, and reports.[3]

The Displaywriter's features were comparable to other dedicated word processing machines of its era. The features included mail-merge, with fields designated as a01, a02, a03, etc. Elementary arithmetic could be applied to the fields.

The basic IBM Displaywriter was a standalone system. An optional central storage and management unit was available, which permitted multiple Displaywriters to share storage and a printer.

UCSD p-System[4][3] operating system and CP/M-86[5][6] were available for the Displaywriter System but were not its regular Operating System.

Connections to other IBM systems included:

Because of Displaywriter's popularity, IBM later produced DisplayWrite software for the IBM Personal Computer, with a similar user interface and equivalent to Textpack 4.[2]


  1. 1 2 "IBM Displaywriter". IBM Archive. Retrieved 2009-01-31.
  2. 1 2 Dickinson, John (1984-09-18). "IBM's Displaywriter Begets a Family of PC Software". PC. p. 238. Retrieved 29 January 2015.
  3. 1 2 3 Dickinson, John (1984-09-18). "The Prototype: Displaywriter". PC Magazine. pp. 242–243. Retrieved 9 March 2016.
  4. SofTech's new products extend p-System's versatility. Info World. Retrieved 2010-02-25.
  5. Digital Research (1981). CP/M-86 IBM displaywriter reference manual.
  6. Libes, Sol (December 1981). "Bytelines". BYTE. pp. 314–318. Retrieved 29 January 2015.
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