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Today the term external storage most commonly applies to those storage devices external to a personal computer. [5] The terms refer to any storage external to the computer. Storage as distinct from memory in the early days of computing was always external to the computer as for example in the punched card devices and media. Today storage ...
The computer's design was based largely on the Xerox NoteTaker, a prototype developed at Xerox PARC in 1976 by Alan Kay. [2] It was designed to be portable, with a rugged ABS plastic case and a handle. [3] The Osborne 1 is about the size and weight of a sewing machine and was advertised as the only computer that would fit underneath an airline ...
On the front of the unit there two dials underneath the PC-speaker to adjust the brightness of the screen and the volume of the PC-speaker. The PC-speaker in the Compaq Portable 486 is unique in that there is a 3.5 mm audio input jack on the side of the unit to allow a third party ISA sound card to pass through its audio output to the PC ...
A RAM drive has much faster read and write access than a hard drive with rotating platters, and is volatile, being destroyed with its contents when a computer is shut down or crashes [1] —volatility is an advantage if security requires sensitive data to not be stored permanently, and to prevent accumulation of obsolete temporary data, but ...
The Compaq Portable has basically the same hardware as an IBM PC, transplanted into a luggable case (specifically designed to fit as carry-on luggage on an airplane), with Compaq's BIOS instead of IBM's. [11] All Portables shipped with 128 KB of RAM and 1-2 double-sided double-density 360 KB disk drives.
The Compaq Portable has basically the same off-the-self hardware as an IBM PC, transplanted into a luggable case (specifically designed to fit as carry-on luggage on an airplane), with Compaq's BIOS instead of IBM's. [2] All Portables shipped with 128k of RAM and 1-2 double-sided double-density 360 KB disk drives.