Microvision

Milton Bradley · 1979

Rate

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1variants

Rarity

Uncommon rating

Why

released only in the region NA, not in Europe - no lower than Uncommon. Estimate: exact units produced unknown.

Specs

Released: 1979-11
Type: handheld

Description

The Microvision is the first handheld console with interchangeable cartridges, released by Milton Bradley in November 1979 at US$49.99. Twelve cartridges came out, and it was discontinued in 1981.

Source: Wikipedia, CC BY-SA 4.0

Details from sources

No onboard CPU/ROM - each of the 12 cartridges (13 counting the cancelled Barrage) contains its own processor (Intel 8021 or TI TMS1100, 64 bytes RAM, 1-2 KB ROM). 16x16 pixel LCD, 12-button keypad plus one paddle, piezo beeper. First-revision units needed two 9V batteries (8021 cartridges); later ones (TMS1100-only) shipped with one live battery holder plus a dead spare-battery compartment (mould reuse). Known failure modes: 'screen rot' (LCD seal failure), ESD damage to the cartridge's exposed CPU pins, and keypad-overlay tearing.

At a glance

Microvision: when was it released?: 1979
Microvision: how many variants?: 1 variant

Data source: en.wikipedia.org

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