|TRS-80 Model II|
WWW.8BIT-MICRO.COM ONLINE VINTAGE COMPUTER MAGAZINE
Announced: July 1979
Released: October 1979
CPU: Zilog Z-80A, 4 MHz
Ports: Two serial ports, One
Display: Built-in 12"
monochrome monitor ,24 X
40 or 24 X 80 text.
Storage: One 500K 8 inch
built-in floppy drive. External
Expansion w/ 3 floppy bays.
Operating System: TRS-
Tandy's official announcement of the Model II came via the "Radio Shack, Microcomputer
Newsletter July 1979 issue. The bold headlines read , "The New TRS-80 Model II isHere!
" The following is a quote from that article.
"The TRS-80 Model 11 is a microcomputer system specifically designed for the small
business environment. It operates at twice the speed of the TRS-80 Model I and has disk
storage space expandable up to almost two million bytes. Database oriented applications
such as integrated accounting systems, inventory control systems and order entry systems
are ideal application areas for the Model 11."
The Model II was released specifically for the business world, and what gave it that
distinction was that is sported 'mass storage' in the form of it's 8" 500Kbytes floppies. This
would hold 5 times the data of the 5.25" floppy. With the database applications of the
day, a small business could store considerable data onto that system. Tandy further
offered additional chained floppy drives, and 5MB. and 10MB, Hard Drives. This unit
would later be replaced by the more superior Model 12 and 16. The Model II would be
later re-invented as a the smaller footprint TRS-80 Model IV with the eight inch drives
replaced by 4 inch floppies and a 12" display.
(c) 2004, 2005 Brian K. Hahn
All Rights Reserved.