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The MC 200 had a "half-size screen" with a 640 x 200 resolution, thus maintaining the same pixel density as that on the MC 400, merely reducing its height, and halved the internal RAM from 256 KB to 128 KB. Such reductions in the specification led to a lower price of £545 plus VAT.
Typing on a laptop keyboard. A computer keyboard is a peripheral input device modeled after the typewriter keyboard [1] [2] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches.
The JR-200 [2] [3] is made of silver grey plastic, and has a black matte area around the chiclet keyboard area. It used the same MN1800A CPU as the previous model, but added a second processor, the 4-bit MN1544CJR, [11] which is used for I/O and contains 128 bytes of RAM plus four kilobytes of ROM.
The Happy Hacking Keyboard (HHKB) is a small computer keyboard produced by PFU Limited of Japan, codeveloped with Japanese computer scientist and pioneer Eiiti Wada. [1] Its reduction of keys from the common 104-key layout down to 60 keys in the professional series is the basis for it having smaller overall proportions, yet full-sized keys.
The Sharp PC-4500 is a line of laptop computers released by Sharp Corporation in 1987. The line comprises the PC-4501, the PC-4502, and the PC-4521. The PC-4501 is a bare-bones unit with only 256 KB of RAM stock, only one floppy drive, no backlighting, and no built-in numeric keypad; the PC-4502 and PC-4521 bumps the stock RAM to 640 KB and includes the latter two features while providing ...
Membrane keyboard as used on the East German Robotron Z1013. A membrane keyboard is a computer keyboard whose keys are not separate, moving parts, as with the majority of other keyboards, but rather are pressure pads that have only outlines and symbols printed on a flat, flexible surface. Very little tactile feedback is felt when using such a ...
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