Matthew Reed's TRS-80.org

The PMC MicroMate

The PMC MicroMate was a CP/M workstation introduced in April 1983 for the price of $1195.00, although that price was later reduced. It was sold by Personal Micro Computers, Inc, also known as PMC, already well known for the Model I compatible PMC-80 and PMC-81 computers. Although the computer lines were not really equivalent, the MicroMate replaced both the PMC-80 and PMC-81. The MicroMate was manufactured by PMC but also resold by TRIOS Micro Systems until late 1984 and was sometimes relabeled by them.'

The MicroMate, officially known as the PMC-101, featured a Z80A processor with 128K of memory and an integrated 5 1/4" floppy drive. The whole computer fit in a case the size of an external drive enclosure. In fact, the unit resembled the external drive units used on a TRS-80 Model I. The MicroMate had no keyboard or video display but was billed as a “Terminal Expander,” designed to be used with any terminal to run CP/M programs. In addition to CP/M 3.0, the MicroMate also came with the T/Maker integrated software package.

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Super Utility Plus Special Edition

In late 1982, PowerSOFT began advertising the “Super Utility Plus Special Edition.” The package, sometimes referred to as “Super Utility Plus S/E,” was a premium limited-edition version of Super Utility. Only 500 packages were produced and each cost $500.00, including shipping. PowerSOFT took reservations for several months and began shipping on January 20, 1983.

Each Special Edition was numbered (1 to 500) and each was personally signed by Kim Watt. In addition to the Super Utility manual, it also came with two books:

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The Assembly Line

“The Assembly Line” was a column about assembly language programming which first appeared in the April 1980 issue of 80 Microcomputing. It was written by William Barden, well known for his books about assembly language such as the Z80 Microcomputer Handbook, TRS-80 Assembly Language Programming, and Programming Techniques for Level II BASIC. The first “Assembly Line” column began with these words:

This is the first of what I hope will be many columns devoted to TRS-80 assembly language programming. Judging from articles I’ve read and comments I’ve heard at users’ groups, many of you are interested in assembly language. I’ll provide tutorial material on the more difficult aspects of assembly-language routines that you can use with BASIC programs or other assembly-language code.

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Super Utility

I suspect that almost everyone who used a TRS-80 disk system remembers Super Utility. First released by Kim Watt in 1980 through his company Breeze Computing, Super Utility was regarded by many to be an indispensible tool. It was described in advertisements as “The King of Utilities” and readers of 80 Micro must have agreed; they voted it 1st Place in the utility category for both the 1982 and 1983 Readers’ Choice Awards. According to one source, a copy of Super Utility was a required purchase for all United States government offices with a TRS-80.

In all, there were versions of Super Utility for the TRS-80 Model I, III, and 4, the Lobo MAX-80, and the IBM PC. I think William D. Allen said it well in a 1983 review in 80 Micro:

This program is like a fire engine. You don’t need it every day, but when you do nothing else will do the job.

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Cosmic Patrol

Cosmic Patrol was a TRS-80 game written by Mike Wall, better known as the co-author of the excellent Lunar Lander game for the TRS-80. It was published by Wayne Green’s software company, Instant Software, costing $14.95 for a tape version and $19.95 for a disk version.

Cosmic Patrol appears to have been based on Cosmic Conflict!, a 1978 game written for the Magnavox Odyssey 2 home video game system. The goal is simple: destroy 15 vessels in the Quelon fleet before running out of E-units. Each game begins with 999 E-units. Each shot fired, whether it hits anything or not, costs ten E units.

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The LNW80

The LNW80, sometimes referred to as the LNW80 Model 1, was the first in a line of TRS-80 compatible computers sold by LNW Research Corporation (later known as LNW Computers). It was probably the most successful TRS-80 compatible sold in the United States. LNW Research had already created the LNW System Expansion, a replacement for the Radio Shack Expansion Interface, so the LNW80 was in many ways a natural next step.

When the LNW80 was introduced in 1980 it was originally sold as a $89.95 “semi-kit,” with instructions and bare printed circuit board. The semi-kit price was so low because all of the electronic parts required for the kit had to be purchased separately. Careful shopping could help reduce costs, but the complete inventory of parts cost hundreds of dollars.

Despite the name, the LNW80 “semi-kit” was not a project for beginners; according to Dennis Báthory-Kitsz in his “80 Applications” column in 80 Micro there were 1,800 individual solder connections. For customers who wanted a complete computer, the LNW80 could also be purchased fully assembled, along with the LNW System Expansion, for $1450.00.

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Asylum

Asylum was the third game in the “Continuum series” of 3-D graphics adventures sold by Med Systems Software. It was preceded by Deathmaze 5000 and Labyrinth and followed by Asylum II. In early 1983, Med Systems Software changed its name to ScreenPlay (which was itself a division of Intelligent Statements, Inc) but continue to sell Asylum.

Med Systems Software sold Asylum for the TRS-80 in both cassette and disk versions. The cassette version came in both 16K and 32K version. The 16K version contains the same puzzles, but the descriptive messages are shorter and the parser recognizes fewer words.

In addition to the TRS-80 version, Med Systems sold cassette and disk versions of Asylum for the Apple II and an IBM PC version written by David C. Willen for Computer Applications Unlimited. Confusingly, the versions they released as Asylum in 1984 and 1985 for the Commodore 64, Atari 400/800, and IBM PC were not adaptations of the TRS-80 version of Asylum. They were actually adaptations of the TRS-80 version of Asylum II

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CHROMA BASIC

The CHROMAtrs was a TRS-80 Model I and III add-on that could display color text and graphics on a separate monitor or television. The CHROMAtrs had advanced graphics and sound features, but using those features required low-level programming that was beyond the abilities of many people. That all changed with the introduction of CHROMA BASIC.

CHROMA BASIC was written by Robert French, who was 14 years old at the time. It added over 68 commands to BASIC to manipulate the graphics, sound, and joystick features of the CHROMAtrs. Although originally priced at $30.00, CHROMA BASIC was soon bundled with the CHROMAtrs package and prominently featured in the advertisements.

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The Holmes VID-80

The Holmes VID-80 was a popular add-on for the TRS-80 Model I and III. Introduced by Holmes Engineering, Inc. in 1982, the VID-80 offered two related features:

  • It expanded the TRS-80 screen from 64 characters wide by 16 characters high to the larger 80 characters wide by 24 characters wide.
  • It changed the TRS-80 memory map to allow running the CP/M operating system.

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The VS-100 Voice Synthesizer

The Alpha Products VS-100 was a popular voice synthesizer for the TRS-80, selling thousand of units. Introduced in 1983 by Alpha Products for a price of $69.95, the VS-100 was available for the TRS-80 Model I, Model III, Model 4, and also the Color Computer. Alpha Products lowered the price of the VS-100 several times; it was reduced to $49.95 in 1985 and $24.95 in 1987.

The VS-100 was a 3″ by 5″ unit that connected to the expansion port of the Model I, Model III, or Model 4. It came with a power adapter, but not the required external speaker. Alpha Products sold a “handsome speaker module” separately for $5.95.

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