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The 1535EXP was also the first rugged portable PC to attain full TEMPEST accreditation from the NSA. [3] Another modification – the Grid GRiDCASE 1537EXP – has another screen (640×480 instead of 640×400, but with less physical size). The power input is 100–240 V AC 50/60/400 Hz, 80 W.
The first commercially successful tablet-type portable computer was the GridPad, [9] released in September 1989. Its operating system was based on MS-DOS. A GRiD Compass 1101 was the first laptop in space. Required special modification to add a fan to pull air through the case. [10] Subsequently a GRiD 1530 flew on STS-29 in March 1989.
A rugged tablet may be semi-rugged or fully rugged. The semi-rugged might have a protective case, rain-resistant body. Fully rugged tablets are engineered from the inside-out to work in extreme temperatures and other harsh conditions. They are designed to resist drops, shocks and vibrations while maintaining strength to be dust- and waterproof.
Desktop cases—and mini-tower cases under about 46 cm (18 in) high—are popular in business environments where space is at a premium. [1] An empty computer case. Currently, the most popular form factor for desktop computers is ATX, [citation needed] although microATX and small form factors have also become very popular for a variety of uses ...
The Compaq Portable, one of the first IBM PC compatible systems A military-type mobile computer housed in a reinforced case A portable computer with three LCD screens A portable computer with one 20.1-inch LCD screen, EATX motherboard The MIT Suitcase Computer, MIT Digital Systems Laboratory, 1975
The Husky was a line of ruggedized handheld computers released by DVW Microelectronics Ltd (later Husky Computers Ltd) of Coventry. [2] [3] The original Husky 144 model was released in December 1981 in Europe. [2] [4] [5] The Husky was designed to be used in harsh conditions, such as wet and cold weather, by users such as the military.
Road case racks come in different heights based on the 1U standard and different depths. Non-isolated cases simply mount 19-inch mounting posts inside the case. To protect equipment from shock and vibration road rack cases use an inner and outer case. These cases can be isolated by thick layers of foam or may use spring-loaded shock mounting.
This list of computer size categories attempts to list commonly used categories of computer by the physical size of the device and its chassis or case, in descending order of size. One generation's "supercomputer" is the next generation's "mainframe", and a "PDA" does not have the same set of functions as a "laptop", but the list still has ...
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