Remember Those? A Trip Through Technology Then and Now

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    Channel Insider Staff

    | Posted 2008-07-02
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THEN: Digital Equipment Corporation Rainbow

In May 1982, the DEC Rainbow 100 was one of the first dual-processor machines introduced. The Rainbow's CP/M operating system had been designed around the Zilog Z80 processor, and for DOS also used the Intel 8088. The machine could boot in either operating system as well as DEC's VT100 OS. The proprietary disk format was handled by a shared drive and head assembly that sat in between the upper and lower drives. 

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