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The RT PC's specifications were regarded as "less than impressive" compared to contemporary workstations by its competitors in that particular market, although the product was deemed deserving of "a healthy amount of respect", particularly with the prospect of IBM as "a serious competitor" who, despite having a product whose performance was an ...
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Apollo Computer Inc., founded in 1980 in Chelmsford, Massachusetts, by William Poduska (a founder of Prime Computer) and others, developed and produced Apollo/Domain workstations in the 1980s. Along with Symbolics and Sun Microsystems , Apollo was one of the first vendors of graphical workstations in the 1980s.
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An Apollo workstation resembles a modern PC, with a base unit, keyboard, mouse, and screen. Early models are housed in short (about 2 ft high) 19" rack cabinets to be set beside a desk or under a table. The DN300 and later DN330 were designed as integrated units with the system and monitor in one unit. These models fit easily on a desk.
The result was an estimated reliability of 99.6% over 250 hours of operation, which was far more than the few hours required for an Apollo mission. With four memory modules, giving a total capacity of 16,384 words, the computer weighed 72.5 lb (32.9 kg), was 29.5 by 12.5 by 10.5 inches (750 mm × 320 mm × 270 mm) in size and consumed 137W.
According to the book Digital Apollo the interpreter was the "brainchild" of Laning, as was the executive scheduler (which among other feats allowed the computer to not be overloaded by the Apollo 11 radar mishap.)
The 801 was an experimental central processing unit (CPU) design developed by IBM during the 1970s. It is considered to be the first modern RISC design, relying on processor registers for all computations and eliminating the many variant addressing modes found in CISC designs.