Home Page Links Search About Buy/Sell! Timeline: Show Images Radio Shack TRS-80 Model II 1970 Datapoint 2200 Catalog: 26-4002 1971 Kenbak-1 Announced: May 1979 1972 HP-9830A Released: October 1979 Micral Price: $3450 (32K RAM) 1973 Scelbi-8H $3899 (64K RAM) 1974 Mark-8 CPU: Zilog Z-80A, 4 MHz MITS Altair 8800 RAM: 32K, 64K SwTPC 6800 Ports: Two serial ports 1975 Sphere One parallel port IMSAI 8080 IBM 5100 Display: Built-in 12" monochrome monitor MOS KIM-1 40 X 24 or 80 X 24 text. Sol-20 Storage: One 500K 8-inch built-in floppy drive. Hewlett-Packard 9825 External Expansion w/ 3 floppy bays. PolyMorphic OS: TRS-DOS, BASIC. 1976 Cromemco Z-1 Apple I The Digital Group Rockwell AIM 65 Compucolor 8001 ELF, SuperELF Wameco QM-1A Vector Graphic Vector-1 RCA COSMAC VIP Apple II 1977 Commodore PET Radio Shack TRS-80 Atari VCS (2600) NorthStar Horizon Heathkit H8 Intel MCS-85 Heathkit H11 Bally Home Library Computer Netronics ELF II IBM 5110 VideoBrain Family Computer The TRS-80 Model II microcomputer system, designed and manufactured by Radio Shack in Fort Worth, TX, was not intended to replace or obsolete Compucolor II the Model I, it was designed to take up where the Model I left off - a machine with increased capacity and speed in every respect, targeted directly at the Exidy Sorcerer small-business application market. Ohio Scientific 1978 Superboard II Synertek SYM-1 The Model II contains a single-sided full-height Shugart 8-inch floppy drive, which holds 500K bytes of data, compared to only 87K bytes on the 5-1/4 Interact Model One inch drives of the Model I. Research Machines 380Z From the Operators Manual: Magnavox Odyssey 2 Cybervision 2001 Because of a special high-density recording technique, each diskette can contain 509,184 bytes of information, which is more than 5 times the APF Imagination capacity of a 5-1/4" diskette. (It would take a 70 wpm typist 24 hours of typing at speed to fill an 8" diskette.) Machine Cromemco System 3 Z80 Starter Kit Also available is the matching computer desk and a high-performance line-printer. The desk includes a pull- Findex out storage drawer, and the Disk Expansion Unit with space for three additional 8-inch floppy drives. TRS-80 model II Bell & Howell The cost: SwTPC S/09 Desk - $350 1979 Heathkit H89 Computer - $3450 (32K RAM) - $3899 (64K RAM) Intertec SuperBrain Disk Expansion - $1150 (1 disk drive) - $2350 (3 disk drives) Atari 400 Line Printer III - $1999 Atari 800 TI-99/4 Sharp MZ 80K HP-85 Micro Ace IBM 5120 TRS-80 Color Computer 1980 TRS-80 model III TRS-80 Pocket Computer NNC 80W Inside the computer cabinet, it's a different world. There is no motherboard, all of the logic circuitry are on Sinclair ZX80 circuit boards in a card-cage with a passive backplane. Dynabyte 5100 TFC 3450 There are four cards installed: By Fujitsu Processor card with the 4 MHz Z-80A CPU, Commodore VIC-20 Memory card with 64K RAM, Sinclair ZX81 Floppy Disk Controller card, Apple III Video Display card. Xerox 820 Osborne 1 1981 There are four open slots for future expansion. Other cards available include a hard disk controller, an arcnet Micro-Professor network card, a graphics card, and a 6 MHz 68000 board set with extra memory (up to 512K) that can run TI-99/4A XENIX. IBM System/23 IBM PC On the outside, there are two serial ports, one parallel port, and a connection for the external disk drives. LNW-80 Rockwell AIM 65/40 NEC PC-6001 Tandy had a great deal of software for the Model II, but there was not much support for the system from anyone other than Tandy. BBC Micro Timex Sinclair 1000 Kaypro II Otrona Attache GRiD Compass 1101 Victor 9000 NEC APC SAGE II DEC Rainbow 100 Sinclair ZX-Spectrum 1982 Lobo MAX-80 Panasonic/ Quasar HHC Related Links Franklin Ace 100 Franklin Ace 1000 TRS-80 Model II from Kees's Computer Home HP-75C TRS-80 Model II from Ira Goldklang's TRS-80 Revived Commodore 64 Commodore B128 Pages Toshiba T100 TRS-80 Model II from Old-computers.com Epson HX-20 Robert P. VanNatta's comments on the TRS-80 Model II Zorba Tim Mann's TRS-80 Pages Dynalogic Hyperion RadioShackCatalogs.com Compaq Portable TI CC-40 Jupiter Ace Apple Lisa History of the Radio Shack Computers TRS-80 model 100 Kyotronic 85 Olivetti M-10 1921: - Radio Shack begins as a one-store retail and mail-order company catering to ham operators and electronics buffs. NEC PC-8201a 1963: - Charles Tandy buys the chain of stores, and within two years turned a $4 million dollar loss into a $20 million dollar profit. Tomy Tutor 1977: August - Radio Shack announces the TRS-80 Model I microcomputer for US$600. Gavilan SC 1977: September - One month after launching the TRS-80, 10,000 are sold. 1983 SAGE IV 1979: May - Tandy/Radio Shack announces the TRS-80 Model II. Altos 586 1979: October - Radio Shack begins shipping the TRS-80 Model II to users. Pied Piper 1980: July - Radio Shack introduces the TRS-80 Model III, priced from US$700 to US$2500. Spectravideo 1980: July - Radio Shack introduces the TRS-80 Color Computer, and sells for US$400. CompuMate 1980: July - Radio Shack introduces the TRS-80 Pocket Computer. Price is US$230. Mattel Aquarius 1981: January - Radio Shack ceases production of the TRS-80 Model I, and recalls units from the US market, due to failure to meet new FCC Coleco Adam radio-frequency interference regulations. Timex Sinclair 1500 1982: January - Radio Shack introduces the TRS-80 Model 16, with 8-inch floppy drives, and optional 8-MB hard drive. TRS-80 MC-10 1982: January - Radio Shack introduces the TRS-80 Pocket Computer, Model PC-2, for US$280. Apple III Plus Visual Commuter 1983: March - Radio Shack announces its TRS-80 Model 100 portable computer. Price is US$799 for 8KB version, to US$1134 for the 32KB TI Portable Professional version. Commodore SX-64 1983: May - Radio Shack introduces the TRS-80 Model 4, for US$2000. Apple Macintosh 1983: October - Tandy/Radio Shack announces the "transportable" TRS-80 Model 4P, for US$1800. Sinclair QL 1983: Radio Shack introduces the TRS-80 Pocket Computer, Model PC-4, replacing the PC-1, for US$70. IBM Portable 1983: Tandy releases the TRS-80 Model 2000, which uses the Intel 80186 microprocessor. TRS-80 model 200 1983: Radio Shack unveils the TRS-80 Model 12 at the CP/M '83 Show. Price is US$3200. Epson PX-8 1985: March - Radio Shack introduces the Tandy 6000 multiuser system. It features Z80A and 68000 processors, 512 KB RAM, 80x24 text, Ampro Little Board graphics, 1.2-MB 8-inch disk, optional 15 MB hard drive, TRS-DOS, or XENIX 3.0. It supports up to 9 users. IBM PCjr Apple IIc 1984 Source: Chronology of Events in the History of Microcomputers Sord IS-11 HP 110 Amstrad CPC Tano Dragon Data General One Psion Organiser Return to the Obsolete Technology Homepage Morrow Pivot Tandy 1000 Sharp PC-5000 Copyright 2016 Atari 520ST This page last updated on 05/08/2016 01:06:45 Franklin Ace 2000 All logos and trademarks on this site are property of their respective owner. Franklin Ace 500 Osborne Vixen Kaypro 2000 Enter comments for this page (all info will be made public): 1985 Amiga 1000 Zenith Z-171 Your name: E-mail: Location: Sharp PC-7000 Comments: AT&T UNIX PC Toshiba T1100 Amstrad PCW Compaq Portable II 1986 IBM Convertible Apple IIGS Zenith eazy PC Amiga 500 If you're a human, type this word: SX64 in here-->> Submit comment Amiga 2000 DynaMac Comments may be subject to approval by moderator before posted. Canon Cat 1987 Linus Write-Top Commodore 1: Name: p*****w Contact: Location: Louisiana Date: Sun, Jun 12, 2016 - 20:07:56 PST 128D (USA) Comments: In the early 1980's I took out a loan on my life insurance and purchased a TRS-80 Model II computer, 3-bay disk drive Compaq Portable III expansion unit, line printer, desk and most of the available TRSDOS software. Cambridge Z88 (Boy, did I bet on the wrong operating system.) Apple IIc Plus In 2016, I still have the desk because it still works great. Only the desk stood the test of time. 1988 NeXT Atari Portfolio Macintosh Portable 2: Name: Steve Contact: Location: Date: Wed, Jan 20, 2016 - 16:19:54 PST Atari Stacy Comments: so the 64k ram TRS-80 model 2 is actually worth 3899$ now? or was that the price when it came out thankyou in Atari ST Book advance !! 1989 Psion MC-400 Zenith MinisPort 3: Name: Contact: Location: Date: Sun, Jan 10, 2016 - 20:19:05 PST GRiDPad Outbound Comments: I would like to speak with the person who who posted the following if he or she still has their equipment. The post I am Poqet PC interested in stated: 1990 Atari TT030 Name: CKinTX Contact: Location: DFW, Texas Date: Thu, Oct 23, 2014 - 06:11:34 PST Amiga 3000 Commodore CDTV 4: Name: myles Glasgow Contact: Contact info Location: Skokie Illinois Date: Sun, Jan 10, 2016 - 20:16:20 PST HP 95LX Comments: I am asking the moderator to help me find a Model II Radio Shack Computer and disc drives able to read Model II discs 1991 NCR-3125 Psion Series 3 which our deceased nephew left to us with valuable indexes of photographic slides we also have showing herpetology observations he Macintosh PowerBook made in central America and fly fishing observations he made in Yellowstone and elsewhere.