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1983 personal computer
the TRS-80 Model 4 on April 26, 1983 as the successor to the TRS-80 Model III. The Model 4 has a faster Z80A 4 MHz CPU, larger video display of 80 columns
TRS-80_Model_4
1977 microcomputer by Tandy Corporation
The TRS-80 Micro Computer System (TRS-80, colloquially known as the "Trash-80", later renamed the TRS-80 Model I to distinguish it from its successors)
TRS-80
Tandy Radio Shack small-business computer launched in 1979
upgrade of the original TRS-80 Model I, but a new system. The Model II was succeeded by the compatible TRS-80 Model 12, Model 16, Model 16B, and the Tandy
TRS-80_Model_II
Portable computer introduced in 1983
The TRS-80 Model 100 is a notebook-sized portable computer introduced in April 1983. It was the first commercially successful notebook computer, as well
TRS-80_Model_100
Programming language
Goldklang, Ira (21 August 2009). "TRS-80 Computers: TRS-80 Model 4 – Ira Goldklang's TRS-80 Revived Site". Ira Goldklang's TRS-80 Revived. Retrieved 8 January
Microsoft_BASIC
the original TRS-80 (later known as the Model I), one of the earliest mass-produced personal computers. However, Tandy later used the TRS-80 name on a number
List of TRS-80 and Tandy-branded computers
List_of_TRS-80_and_Tandy-branded_computers
Discontinued family of computer operating systems
ZX Spectrum +3, the Commodore 128, MSX machines, and the Radio Shack TRS-80 Model 4. There were versions of CP/M for some 16-bit CPUs as well. The first
CP/M
Topics referred to by the same term
Model 4 may refer to: the TRS-80 Model 4, a computer the Convair Model 4, an airplane the IBM Printer Model 4 This disambiguation page lists articles
Model_4
Topics referred to by the same term
TRS-80 is the name of Tandy Corporation's original 1977 microcomputer system (also known as the Model I). The TRS-80 brand was also later applied to many
TRS-80_(disambiguation)
was user programmable. Up to 95% of TRS-80 Model III software would function without modification on the MAX-80. This did not include games. The special
Max-80
Spreadsheet program
TRS-80 Model II, TRS-80 Model 4, TRS-80 Model 100 (on ROM), Apple II, AT&T UNIX PC, and Burroughs B20 series. The CP/M version also ran on the TRS-80
Multiplan
Line of home computers
The TRS-80 Color Computer, later marketed as the Tandy Color Computer, is a series of home computers developed and sold by Tandy Corporation. Despite sharing
TRS-80_Color_Computer
Operating system for Tandy TRS-80 computers
Version 1.3. From 1983 disk-equipped TRS-80 Model 4 computers used TRSDOS Version 6, which was a development of Model III LDOS by Logical Systems, Inc. This
TRSDOS
Process of making software accessible worldwide
Goldklang, Ira (2009-08-21). "TRS-80 Computers: TRS-80 Model 4 – Ira Goldklang's TRS-80 Revived Site". Ira Goldklang's TRS-80 Revived. Retrieved 2025-01-08
Internationalization and localization
Internationalization_and_localization
Pocket computer
the PC-1211, the TRS-80 Pocket Computer (model PC-1), was marketed by Radio Shack in July 1980 as the first iteration of the TRS-80 Pocket Computer with
Sharp_PC-1211
Line of pocket computers
named after the TRS-80 line of computers, they were not compatible with any TRS-80 desktop computer and did not use the Z80 CPU. Models in the Pocket Computer
Tandy_Pocket_Computer
1983 Tandy microcomputer
The TRS-80 MC-10 microcomputer is a lesser-known member of the TRS-80 line of home computers, produced by Tandy Corporation in the early 1980s and sold
TRS-80_MC-10
1979 computer spreadsheet application
TRS-80 Model II, TRS-80 Model III, Commodore PET, HP 125, Atari 8-bit 1981: IBM PC, Sony SMC-70 1982: Apple III 1983: Apple IIe 1983: TRS-80 Model 4,
VisiCalc
16-bit microprocessor
hardware on a selective basis using a device filter, as is done for the TRS-80 Model 4's balky keyboard. The on-chip ASCI makes it possible to implement additional
Hitachi_HD64180
list contains video games created for the TRS-80 Color Computer (commonly called the CoCo), part of the TRS-80 family of computers. Many CoCo games are
List of TRS-80 Color Computer games
List_of_TRS-80_Color_Computer_games
This list contains video games created for the monochrome TRS-80 computers. There are 539 commercial games on this list. Directory: 0–9 A B C D E F G
List_of_TRS-80_games
8-bit character set
graphics in games, such as Android Nim. The following table shows the TRS-80 model I character set. Each character is shown with a potential Unicode equivalent
TRS-80_character_set
1.5 million Model I's. The line continued until late 1991 when the TRS-80 Model 4 was at last retired. Similarly to the American trinity, Japan has a
History_of_personal_computers
Class of microcomputers
housed their drives within the main unit; these included the TRS-80 Model III, TRS-80 Model 4, Apple IIc, MSX2, and Commodore 128D. The later 16-bit machines
Home_computer
of the BASIC programming language that shipped with the first TRS-80, the TRS-80 Model I. Tandy employee Steve Leininger wrote the first draft of the
Level_I_BASIC
Personal computer by Radio Shack
dual-floppy model had 128 KB RAM and the hard-drive-equipped 2000HD had 256 KB. For comparison, at this time the low-end TRS-80 Model 4 with two floppy
Tandy_2000
1982 home computer by LNW Research
Tandy TRS-80 Model 1, but has some hardware enhancements. Most notable are the high-resolution color graphics, which could also be used for an 80×24 screen
LNW-80
Older computer system
the Model I, in good condition can command premium prices on the vintage computer market. The Z80 systems (all branded TRS-80) were: Model 1, Model 2,
Vintage_computer
1982 personal computer
(TPA) and a full 80×25 display, and it could be used as a Videotext terminal. Although the Aster was a clone of the TRS-80 Model I it was in fact more
Aster_CT-80
Word processing application
Radio Shack TRS-80 line of computers. Versions were available for most if not all computers sold under the TRS-80 name, including the TRS-80 Color Computer
Scripsit
1983 video game
up written for the TRS-80 Model I by Bill Dunlevy and Harry Lafnear and published by MichTron in 1983. It was ported to the TRS-80 Color Computer and
Time_Bandit
a Profile for the TRS-80 model I, model III and model IV, these were unrelated programs. Today's filePro started out on the Model II and was first released
FilePro
Mera–Elzab Meritum is a family of Polish personal computers based on TRS-80 Model I with BASIC Level II. Manufactured in the 1980s by Mera–Elzab in cooperation
Mera-Elzab_Meritum
Series of computers produced by Hong Kong-based manufacturer EACA during the early 1980s
Computers from the Video Genie line are mostly compatible with the Tandy TRS-80 Model I computers and can be considered a clone, although there are hardware
Video_Genie
Topics referred to by the same term
leagues Double-duty dollar DoubleDuty, a task-switching utility for the TRS-80 Model 4 computer This disambiguation page lists articles associated with the
Double_Duty_(disambiguation)
Computer I, II & III models, which were designed for both home office and entertainment (gaming) uses. A list of software for the TRS-80 computer series appears
List of software for the TRS-80
List_of_software_for_the_TRS-80
Pocket computer
by Sharp between 1981 and 1985. A rebadged version was also sold as the TRS-80 Pocket Computer PC-2. The whole computer was designed around the LH5801
Sharp_PC-1500
Computer magazine published between 1980 and 1988
as 73, founded 80 Microcomputing as a spinoff of his Kilobaud Microcomputing solely for Tandy Corporation's Radio Shack TRS-80 Model I microcomputer
80_Micro
1981 video game
Scarfman. Oliver also wrote the Enhanced BASIC Compiler for the TRS-80 Model III and 4. The player controls Scarfman, eating the dots in a maze filled
Scarfman
Computer from the 1980s
the then-current TRS-80 Model I. As the Colour Genie was descended from this architecture, it was incompatible with Tandy's newer TRS-80 Color Computer
Colour_Genie
Spectral Associates was an American maker of computer games for the TRS-80 Color Computer. It was founded in 1980 and went defunct sometime in the late
Spectral_Associates
Graphics modes of home computers in the 1970s and 1980s
horizontal resolution. It was most common on the IBM PC (with CGA graphics), TRS-80 Color Computer, Apple II and Atari 8-bit computers, and used by the Ultima
Composite_artifact_colors
Interpreter that enables users to enter and run programs in the BASIC language
interrupt-driven background tasks, such as TRSDOS/LS-DOS 6.x on the TRS-80 Model 4, exploited periods of user inactivity (such as the milliseconds-long
BASIC_interpreter
Retail company based in Fort Worth, Texas, United States (1919–2000)
the personal computer market following the introduction of the popular TRS-80; it was one of the pioneers in the rising personal computer industry, being
Tandy_Corporation
classified as personal computers. Examples of early home computers are the TRS-80, Atari 8-bit computers, BBC Micro, ZX Spectrum, MSX, Amstrad CPC 464, and
List of home computers by video hardware
List_of_home_computers_by_video_hardware
Laptop computer released by Epson in 1981
computer was not a commercial success outside of Japan. Radio Shack's TRS-80 Model 100 (the American version of a Kyocera notebook), released in 1983, is
Epson_HX-20
1982 educational video game
published by The Learning Company in 1982. It was released for the Apple II, TRS-80 Color Computer, Commodore 64, IBM PC, and the IBM PCjr. It won Software
Rocky's_Boots
Radio Shack computer sold from 1978–1980
Radio Shack in the late 1970s as a business-oriented complement to its TRS-80 Model I desktop computer. Released in 1978, the Tandy 10 was built for Radio
Tandy 10 Business Computer System
Tandy_10_Business_Computer_System
Magnetic tape storage format
"ESF-80" version for the Radio Shack TRS-80 in 1979. ESF wafers allowed for higher write speeds (7200 baud for Model 1000 wafers, and 11400 baud for Model
Exatron_Stringy_Floppy
Brazilian home computer
of software and hardware with the American TRS-80 Model III, using the BASIC Level II language. All models, as well as virtually all of Prologica's computers
CP-500
First jet aircraft in U.S. operational service
the F-80C over Korea. However, by the end of the conflict, fighter models of the F-80 had already been withdrawn from the Korean theatre in favour of other
Lockheed_P-80_Shooting_Star
1978 home computer system
successful Commodore PET and TRS-80. Sorcerer sales worldwide, of around 20,000 units, is comparable to the TRS-80 model II, both targeting Small or Home
Exidy_Sorcerer
8-bit home computer produced in Brazil
was TRS-80 Color Computer 2 clone, but had a different case than the original machine. The computer was 100% compatible with the original TRS-80 Color
Prológica_CP-400
Computer museum in Washington, U.S.
4, 2018. "Application for a Guest Account on the Living Computers: Museum + Labs". Archived from the original on November 30, 2018. Retrieved July 4,
Living Computers: Museum + Labs
Living_Computers:_Museum_+_Labs
8-bit home computer released in 1983
is a workalike of the Tandy TRS-80 Model I, with Level II BASIC. The micro uses the same basic architecture, and TRS-80 Level I and II programs can be
VTech_Laser_200
Project Needlemouse — Sonic The Hedgehog 4 Episode 1 Project Pipeline — RxCentric.com Inc. Project R — TRS-80 Model 4 Project Reality — Nintendo 64 Project
List of computer technology code names
List_of_computer_technology_code_names
Use of two or more central processing units (CPUs) within one computer system
The Z-80 can be used to do other tasks. The earlier TRS-80 Model II, released in 1979, is also a multiprocessor system as it has both a Z-80 CPU and
Multiprocessing
Home computer model
computers that were built in the 1980s. The Dragons are very similar to the TRS-80 Color Computer, and were produced for the European market by Dragon Data
Dragon_32/64
extra spaces that were entered. How does BASIC locate an out-of-order NEXT statement when the loop body is skipped basic-80 reference manual. p. 2–30.
List of computers with on-board BASIC
List_of_computers_with_on-board_BASIC
1980 Hewlett-Packard small scientific desktop computer
the development of inexpensive home computers such as the Apple II and TRS-80. Steve Wozniak, while working at HP, had developed the Apple computer in
HP_Series_80
Late 1990s portable solid state digital audio player
70 dB Distortion rate: 0.1% Maximum output: 5 mW Output Connector: 4 pin 3.5 mm stereo TRS connector for headphones and wired remote. Frequency response:
MPMan
American synchronized display of water and lights
lighting. The new control system also introduced using a RadioShack TRS-80 Model 4 to program shows. Programmers were required to type special commands
Grand_Haven_Musical_Fountain
American computer programmer
Buffer in Rainbow Magazine. TRS-80 Models I, III, & Color Computer Interfacing Projects, 1983, ISBN 0-672-22009-1 TRS-80 Color Computer Assembly Language
William_Barden_Jr.
Musical artist
to a slang term for the Tandy / Radio Shack computer model (now defunct) TRS-80 (model 1/2/3/4/4p). In 2003 the EP Hologram was released. and in May
Trash80
Electrical connectors for microphones
in 1⁄4 inch (6.4 mm), 3.5 mm, and 2.5 mm sizes, and in both mono and stereo configurations. Not all microphone plugs with 3-segment TRS (Tip-Ring-Sleeve)
Microphone_connector
price $69.95" (PDF). Retrieved 7 September 2014. [1] 80 Micro review of KAMAS running on TRS-80 Model 4 under Montezuma CP/M [2] Byte product preview of KAMAS
KAMAS_(program)
com Museum Archived 2006-11-23 at the Wayback Machine TRS-80 Model 600 8bit-Micro.com - TRS-80 Laptops IEEE Annals of the History of Computing Tandy 600
Zenith_ZP-150
American computer programmer (born 1935)
of the People's Computer Company Newsletter. The original prototype TRS-80 Model I that was demonstrated for Charles Tandy to sell the idea ran Li-Chen's
Li-Chen_Wang
Family of 8-bit microcontrollers
since its introduction in 1978.[citation needed] The Tandy/Radio Shack TRS-80 Model II, released in 1979, used the 8021 in its keyboard. The 8021 processor
Intel_MCS-48
1980 dot matrix printer
to the TRS-80 character set). This allows for the creation of low-resolution graphical prints. A set of DIP switches on the back of the MX-80 can be flipped
Epson_MX-80
American game designer (born 1952)
adventure-style game for personal computers, in 1978 on a 16 KB Radio Shack TRS-80 Model I, written in BASIC. Colossal Cave was written two years earlier by Will
Scott_Adams_(game_designer)
systems, first for S-100 machines, and the later for other platforms like the TRS-80 and Atari 8-bit computers. The company was purchased by Esprit Systems in
Percom
Home computer
system-specific POKE commands. Like the Commodore 264 and Radio Shack TRS-80 Model 100 series computers, the CLCD had several built-in ROM-based office
Commodore_LCD
Personal computer system
magazine—and subsequently many others—referred to the PET, Apple II and TRS-80 collectively as the "1977 trinity" of pioneering personal computers. Following
Commodore_PET
Laptop computer
not initially a commercial success, especially compared against the TRS-80 Model 100 portable computer but achieved some increased success after a large
Epson_PX-8_Geneva
NEC, who recognised its potential and marketed it respectively as the TRS-80 Model 100 line (or Tandy 100), Olivetti M-10, and NEC PC-8201. The machines
History_of_laptops
1982 video game
produced and published by JMG Software International, released for the TRS-80 microcomputer system in October 1982. An updated and expanded version, Supreme
Supreme_Ruler_(video_game)
Home computer marketed in France
a home computer sold in France beginning in 1983. It was a clone of the TRS-80 MC-10, produced through a collaboration between Matra and Hachette in France
Matra_Alice
Defunct speech synthesis company
Gottlieb pinball machines: Rocky, Striker Alpha Products 'VS100' (for TRS-80 Model III) (SC-01-A) Sweet Micro Systems Mockingboard Speech I and 'Sound/Speech
Votrax
Character encoding standard
"newline" or "NL" to refer to the line terminator. Contrarily, the Radio Shack TRS-80, Apple DOS, Apple ProDOS, and classic Mac OS used a lone carriage return
ASCII
Notebook computer
interpreter. The computer's design, evocative of the TRS-80 Model 100, features a screen with 80 character columns by eight rows, and not backlit, but
Amstrad_NC100
1984 computer by Hewlett-Packard
folded down over the keyboard for transport, unlike computers such as the TRS-80 Model 100 which has the display in the same fixed plane as the keyboard. The
HP_110
Type of keyboard using flat keys separated by bezels
during the home computer era of the late 1970s to mid-1980s. The TRS-80 Color Computer, TRS-80 MC-10, and Timex Sinclair 2068 were all described as having
Chiclet_keyboard
Obsolete size class of laptops
that had a letter-paper footprint, such as Epson's HX-20 and Tandy's TRS-80 Model 100 of the early 1980s. The popularity of this form factor waned in the
Notebook_computer
1980 video game
John Lyons, who programmed the game in BASIC. Originally developed for the TRS-80, an Apple II version was also created two months into the process. After
Computer_Bismarck
Xtal/DOS which is CP/M compatible) Tandy TRS-80 CP/M 2.2 (Models I, II, III, IV, and 4) Z80 Tandy TRS-80 Model 100 with REXCPM add-on CPM 2.2, 8085 CPU
List of computers running CP/M
List_of_computers_running_CP/M
Class of shunting locomotives
M6 engine and SCG 4-speed gearbox; and the Model 6 (TR 162-176), engine Gardner 6L3, also SCG 4-speed gearbox. The McLaren-engined TRs were re-powered from
New Zealand TR class locomotive
New_Zealand_TR_class_locomotive
Real-time operating system
best known hardware (due to its low price and broad distribution) was the TRS-80 Color Computer (CoCo) and the similar Dragon series. Even on the CoCo, a
OS-9
1982 video game
including the TI-99/4A, the Atari 8-bit computers, Commodore 64, VIC-20, TRS-80 Color Computer and IBM PCjr. The game was retitled Super Demon Attack for
Demon_Attack
Smartphone model
having two 3.5-inch screens that, when juxtaposed in "tablet mode" create one 4.7-inch screen. Sprint claims it as the "first dual-screen smart phone". When
Kyocera_Echo
PC form factor with integral display
intended for professional use such as the Commodore PET, the Osborne 1, the TRS-80 Model II, and the Datapoint 2200. Many manufacturers of home computers like
All-in-one_computer
Synchronization interface for electronic musical instruments
manufacturers offer DIN sync over a 3.5 mm TRS minijack connection. Similar to the MIDI standard over TRS minijack, the aim is to reduce space in the
DIN_sync
IBM PC compatible home computer system
1980s. In December 1983, an executive with Tandy Corporation, maker of TRS-80 computers, said about the new IBM PCjr: "I'm sure a lot of people will be
Tandy_1000
Motor vehicle
diesel engine. At the Paris Salon 1984, for model year 1985, the 1.4 L TRS was presented. The Visa 14 TRS, was produced for two years (1985–1987), shared
Citroën_Visa
Topics referred to by the same term
(rocket engine), a rocket engine The Olivetti M10, a variant of the TRS-80 Model 100 notebook McLaren M10, a Formula 5000 racing car M10 (New York City
M10
Series of networkable home computers
and devices including the TRS-80, Sorcerer and SOL20 with later colour and graphic models 40 and 80 column terminals, Super-80, ZX Spectrum, early arcade
MicroBee
Personal computer released in 1975
display all in a case that looked very much like a Hazeltine terminal or TRS-80 Model III. "Vintage Computer Festival - Featured Speaker". Archived from the
Sphere_1
American WWII fighter
relinquished it." The 3rd, 5th, 23rd, 51st and 80th FGs, along with the 10th TRS, operated the P-40 in the CBI. CBI P-40 pilots used the aircraft very effectively
Curtiss_P-40_Warhawk
American electronic component manufacturer
property records show that AVX purchased 21.5 acres of contaminated land for $4.6 million. AVX appealed Wooten's 2011 decision on whether the Air Force should
AVX_Corporation
Welsh computer company
These computers, the Dragon 32 and Dragon 64, strongly resembled the Tandy TRS-80 Color Computer ("CoCo")—both followed a standard Motorola datasheet configuration
Dragon_Data
travel, tourism, insurance
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
TRS 80-MODEL-4
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