The Fiber Optics Illustrated Dictionary - Part 88 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary poles. The top and bottom mounting surfaces are metal while the layers of skirts down the body of the insulator are fabricated out of silicone rubber over a fibre-glass core. Silicone rubber is nonconductive light water-repellant resistant to ozone and ultraviolet degradation and easy to fabricate in a variety of shapes and sizes making it an alternative for glass and ceramic insulators. SIM4 Historically one of the early desktop computers introduced over 2 years before the Altair but several months after the Kenbak-1 in 1972 by the Intel Corporation which was around the same time Hewlett Packard introduced the HP 9830. The single-board Intel computer was based upon a 4004 processor and was available in at least two models the SIM4-01 and the SIM4-02. The SIM4-02 could be inserted into an Intel MCB4 chassis and programmed through a programmer card. See Altair Kenbak-1 Micral. SIMM single inline memory module. Simon A historically remarkable computer project described in Edmund C. Berkeley s book Giant Brains or Machines That Think in 1949 and in Radio Electronics articles in the early 1950s. The name was based on Simple Simon. It was basically a desktop logic calculator that could be built for about 300 about 4000 in today s money . In his book Berkeley describes it as . so simple and so small in fact that it could be built to fill up less space than a grocery store box about 4 cubic feet. The Simon was an electromechanical assembly for performing different calculating experiments but it can probably be considered the first desktop computing kit considering the size of computer behemoths at the time. Simon was a papertape computer based on 129 relays and a stepping switch. In Berkeley s description a two-hole tape reader was used to input numbers and operations and a four-hole tape reader was used to input instructions but Berkeley points out that relays and other input modes apply just as well. Problems were entered in binary .
