Today June 29, in the Apple – 1 history

facts about the Apple-1, the machine that made computing history

On June 29, 1975, Steve “Woz” Wozniak tested the first prototype of the Apple computer, and history was made.

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This fully functioning Apple-1 was sold at auction by Christies in December 2014 for $356,000.
TIMOTHY A. CLARY/AFP/Getty Images

On this day in 1975, Steve “Woz” Wozniak tested the prototype of what would be come the Apple-1 computer. Here are 10 fascinating facts about that history-making machine.

1. Woz constructed the very first Apple-1 computer prototype based on the $175 Motorola 6800 CPU. When a team of former Motorola engineers released the $25 MOS 6502 CPU, Woz adapted his system around the cheaper chip to make the Apple-1 more affordable.

2. The processor ran at just 1.023 MHz. Its 4 KB of RAM was expandable to 8 KB or 48 KB. An additional cassette tape interface allowed the user to save program data. This was one of the precursors to the floppy disc.

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3. The Apple-1 computer consisted of a single motherboard, with about 60 chips, fully pre-assembled. At the time, computers did not come assembled, and consisted of multiple circuit boards.

4. Even though it came with a pre-assembled motherboard, that’s all the Apple-1 came with. Owners had to make their own case.

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