The Excube is a workstation computer developed, marketed and sold by Ex-Com. It runs on the Unix-based EXOS operating system. The Excube consists of the 50cm die-cast magnesium cube-shaped, black case, which led to the machine being informally referred to as the reason why it was called the Excube. It was launched in 1986 at $5000.

Excube was discontinued and replaced by Excube Turbo in 1988.



The Excube recived mixed to positive reviews from critics.

In 1987, Tech Plus listed the Excube among the "Excellence" winners of the Tech Awards, stating that it showed "what can be done when a personal computer is designed as a system, and not a collection of hardware elements". Citing as "truly innovative" the optical drive, DSP and object-oriented programming environment, it concluded that "the Excube is worth every penny of its $5000 market price".

The Excubes were sold to universities, financial institutions, and government agencies.

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