Tandy TRS-80
In 1976, in the offices of Tandy Radio Shack in Fort Worth, Texas, Don French harbored a bold idea. This computer enthusiast and executive at a company with nearly 3,500 electronics stores across the United States wanted to convince his president, Lew Kornfield, to venture into selling computer kits. The idea seemed crazy: selling a $199 product in stores accustomed to moving merchandise priced around $30. Management was skeptical. But times were changing. Sales of CB radios, those Citizen Band units that had made the company’s fortune, were beginning to falter. The company needed a breath of fresh air, a product capable of maintaining its margins. French’s project finally got the green light.
Spring 1976 saw French and his colleagues visit National Semiconductor. There, they met Steve Leininger, a chip designer and member of the famous Homebrew Computer Club. Initially solicited as a mere consultant, Leininger eventually accepted a position at TRS. The man would revolutionize the initial project. While kits dominated the market against much more expensive assembled systems, he pushed TRS toward the latter option. His bet: offer a fully assembled computer for $399.95. With the monitor, the package would reach $599.95. The price remained low enough to appeal to management.
Caution prevailed at Tandy. Don French confirmed it: only 3,500 units were initially produced, exactly matching the number of Radio Shack stores. The logic seemed obvious: if the venture went south, the machines would serve in the retail locations. On August 3, 1977, New York’s Warwick Hotel hosted the official presentation of the TRS-80. The press conference went almost unnoticed. Two days later, fortune smiled on the company: the TRS-80’s presence at the Personal Computer Faire in Boston earned a front-page Associated Press article.
Upon his return, French discovered that his brainchild had taken on unexpected proportions. The numbers speak for themselves: approximately 250,000 units sold for this first model. The attractive price compared to competition from Apple or Commodore doesn’t explain everything. Radio Shack had an ace up its sleeve: its brand recognition and its roughly 5,000 stores and franchises in 1977. Anyone could now see and test a TRS-80 in a shopping mall or on a commercial street. The computer emerged from the circle of enthusiasts to reach the general public.
Businesses began taking interest in the TRS-80, but the first generation quickly showed its limitations. Compared to machines like the IBM 5110, it lacked power and storage space. Tandy struck back in June 1979 at the National Computer Conference in New York with the TRS-80 Model II. Mind you, this wasn’t a successor to the Model I, which then took on that name. Radio Shack’s advertising hammered the point: this was a different machine, considerably more expensive with a base price of $3,490 including a disk drive. The Z80 processor jumped from 1.77 to 4 MHz, memory climbed from 4K expandable to 16K toward 32K expandable to 48K, graphics gained resolution. Gone was the cassette drive, replaced by a specific TRSDOS and an enhanced BASIC.
July 1980 marked the arrival of the TRS-80 Model III, the true heir to the Model I. Electromagnetic interference from early personal computers prompted the FCC to tighten its directives. The Model I was discontinued in 1981. Like its big brother Model II, the Model III integrated everything into a single case: monitor, keyboard, disk drive. This design reduced radio interference and appealed to educational institutions, less exposed to theft than with separate components. The Z80 processor reached 2.0 MHz and featured a more powerful ROM BASIC 2. The architecture preserved broad compatibility with the Model I, but TRSDOS 1.3 was specific to the Model III. A complete model cost $2,495 in 1980, with the entry-level version priced at $699.
April 1983 saw the birth of the TRS-80 Model 4. Burned by compatibility problems between the Model I and Model III, developers bet on total compatibility with its predecessor. The computing world applauded this decision but lamented the absence of native software. The Model 4 broke new ground: 4 MHz clock, 64K of RAM with the possibility of adding 64K more, 80x24 screen with reverse video, TRSDOS 6 with Microsoft BASIC and CP/M compatibility. The basic configuration with a 16K cassette drive started at $999, the complete model with 64K and two floppy drives peaked at $1,999. Two limited versions would follow, but the original configurations would last until 1991.
The TRS-80’s triumph can be explained in different ways. First, that immediate availability in the vast Radio Shack network. Then, a remarkable pedagogical approach with the Level I BASIC manual, exemplary in its clarity. The modular design also appealed: everyone could upgrade their machine according to their means and needs. Radio Shack provided after-sales service, a mark of confidence. The company developed an entire ecosystem: varied peripherals, software ranging from games to professional applications (accounting, inventory management). Over 100,000 systems found buyers, placing the TRS-80 among the first widely distributed personal computers.
The impact on the computerization of small businesses, schools, and American households proved considerable. The TRS-80 democratized access to computers far beyond the circles of specialists and professionals. It embodied this transformation of the microcomputer market between the late 1970s and early 1980s, this shift from a niche market toward the general public and the professional world.