In the early 70s computing had reached a point in its development where a large number of people had been exposed to its power and potential but they had also been dismayed to discover how much it cost.

The simple truth was that while it was possible to allow university students and even school pupils to have access to a computer, the time allocation was always rationed. Following an educational experience of computing the after life was usually bleak. with minicomputers costing $50,000, and mainframe timeshare bills threatening to reach as much, in a short time there was a growing population of frustrated would be computer users.

In 1970 Intel had produced the first microprocessor but it was a highly specialised and expensive component. To use a microprocessor you needed a hardware development system that cost almost as much as a minicomputer. Indeed most of the software intended to run on the microprocessor of the time was developed using cross compilers. In short, microprocessors were no solution to the computer famine because they were expensive and bore little resemblance to their big brothers.

Still people could dream. The introduction of the integrated circuit had altered electronics as a profession and a hobby. Enthusiasts who had worked hard to build a single transistor radio set could now build complex circuits involving tens and even hundreds of transistors. Many had dreamed of building a computer - the ultimate electronic product - but they were still thwarted by the large number of discrete circuits needed for even the simplest computer. So the craving grew unsatisfied.

Ed Roberts and MITS

Henry Edward Roberts (1941-2010)

Ed Roberts was an enthusiast. He became enthusiastic about almost anything that he got a little interested in - bee keeping, photography. In particular he loved electronics. He even went so far as to join the Air Force to learn something about the subject. He was posted to a base just outside Albuquerque in New Mexico. There he formed a company - Model Instrumentation and Telemetry Systems - MITS for short. MITS designed, made and sold radio controlled models and even model rockets by mail order.

The company was run from a garage but in 1968 Roberts moved it into a former restaurant called "The Enchanted Sandwich Shop" and started to build calculator kits. At the time pocket calculators were a growth industry and MITS was the first company in the USA to offer calculator kits. The company grew to employ over 100 people. Then the bottom fell out of the calculator market because Texas Instruments introduced an affordable, ready built model. A price war followed and by 1974 MITS was more than a quarter of a million dollars in the red.

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