With a pristine original Apple Cassette Interface Card This Apple-1 also includes an original Apple-1 Cassette Interface (ACI), also introduced in 1976, which provides the ability to save memory contents onto a standard audio tape, and later load the contents back into the computer’s memory. Revolutionary for the time, Steve Wozniak designed the ACI to use only 6 integrated circuits, compared to other solutions which used 50 to 100 integrated circuits. This allowed Apple to sell their solution for less than their competitors; the Apple ACI also operated at four times the speed of its contemporary competitors.
Another central characteristic of the Apple-1 is its built-in video terminal, which allows output to a television screen or video monitor. This was a dramatic advance from the traditional computer input/output mechanism of the day, the ASR-33 teletype, which printed a computer’s output onto a spool of paper. With this video port, the Apple-1 allowed a user to view commands on a screen in real time—something taken for granted in today’s computing world. Included with this Apple-1 is a period (circa 1976) Sanyo VM4205 open frame ‘security’ monitor, wired for direct Apple-1 use and modified for safety to use a removable power cord. The keyboard included is a fully functional period (circa 1974) surplus ASCII keyboard.