TRS-80 - The Most Popular Personal Computer of 1977 | #SepTandy
Retro Hack Shack・2 minutes read
In 1977, many significant events occurred, such as the debut of Star Wars and the launch of Voyager 1 and 2. The TRS-80 computer, part of the 1977 Trinity, became a best-selling PC line despite some initial hardware issues that required troubleshooting and adjustments.
Insights
- The TRS-80, released in 1977, exceeded sales expectations, outselling the Apple 2 Series by five times, becoming the best-selling PC line of its time.
- The speaker detailed the intricate process of examining and troubleshooting TRS-80 computers, highlighting issues like monitor quality, power supply conditions, and potential upgrades, showcasing a dedication to meticulous repair work and problem-solving.
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Recent questions
What significant events occurred in 1977?
In 1977, Jimmy Carter became the President of the United States, Elvis Presley had his last performance, the Dr. Pepper jingle emerged, disco fever swept the nation, Star Wars debuted, Voyager 1 and 2 were launched, Atari introduced the VCS, and the TRS-80 was announced.
What was the TRS-80's impact on the PC market?
The TRS-80, part of the 1977 Trinity with Apple 2 and Commodore PET, became the best-selling PC line, outselling the Apple 2 Series by five times, despite initial projections of selling only 3,000 units.
What issues were noted with the TRS-80 monitors?
The first monitor had a sticky pot and low brightness, the second was initially out of focus with deflection problems, and the third had a non-functional brightness knob, showing differences in appearance and functionality.
How were TRS-80 computers tested for functionality?
The power supplies were tested, one in good condition and the other needing potential replacement. Two TRS-80 Model 1 computers were examined for differences in keyboards, appearance, and serial numbers, with readiness expressed for repairs if needed.
What upgrades were involved in the TRS-80 Level two upgrade?
The Level two upgrade required removing a chip, adding a ribbon cable, and using three PROMs, with attention given to strip wire leads, testing for shorts, adjusting voltage pots, and troubleshooting video signal issues for optimal functionality.