Digi-Comp I

Mechanical computer

The Digi-Comp I is a functioning, mechanical digital computer sold in kit form. It was originally manufactured from polystyrene parts by E.S.R., Inc. starting in 1963 and sold as an educational toy for US$4.99 (equivalent to US$52 in 2025). The Digi-Comp I has been referred to as the first home computer.

Nº Q5275698 ★

Common · Knowledge

Digi-Comp I

Mechanical computer

The Digi-Comp I is a functioning, mechanical digital computer sold in kit form. It was originally manufactured from polystyrene parts by E.S.R., Inc. starting in 1963 and sold as an educational toy for US$4.99 (equivalent to US$52 in 2025). The Digi-Comp I has been referred to as the first home computer.

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From Wikipedia

The Digi-Comp I is a functioning, mechanical digital computer sold in kit form. It was originally manufactured from polystyrene parts by E.S.R., Inc. starting in 1963 and sold as an educational toy for US$4.99 (equivalent to US$52 in 2025). The Digi-Comp I has been referred to as the first home computer. A successor, the Digi-Comp II, is not programmable, but in effect a visible calculator. A two-level Masonite platform with guides serves as the medium for a supply of marbles that rolled down an inclined plane, moving plastic cams as they fell.

Text: Wikipédia, CC BY-SA 4.0. · Image: Pterre (CC BY-SA 3.0) ·

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