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The total cost of equipment used to build the test unit in this study was approximately $5,000, Hua noted, mainly including the vehicle for $4,500, the heater for $200 and microcomputers for $100.

In a first for the microcomputer maker, the Pico is powered by a custom chip designed in house called the RP2040.

Schlueter removed the pneumatic relays and the bundle of wires and replaced them with a purpose-built microcomputer and a few slim Ethernet cables.

When Bill Gates was a lad, for example, he wrote a Basic interpreter for one of the earliest microcomputers, the TRS-80.

“In the 1980s and 90s young designers grappled with coding on the new microcomputers and set the template for the industry with iconic �������t¶��. We celebrate some of their landmark creations on stamps.”