high-density recording
51Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… …
52VCDHD — Optical discs Optical disc Optical disc drive Optical disc authoring Authoring software Recording technologies Recording modes Packet writing Optical media types …
53South Acton, London — infobox UK place official name= South Acton map type= City Of London region= London historic county= Middlesex (1965) country= England london borough= Ealing constituency westminster= Ealing, Acton and Shepherd s Bush post town= LONDON postcode… …
54electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… …
55Gordon Hughes — Gordon Frierson Hughes (born September 9, 1937), is an American engineer and computer scientist. Hughes was born in Los Angeles California. While at high school, he designed and built an early digital computer using vacuum tubes and telephone… …
56Disk storage — or disc storage is a general category of storage mechanisms, in which data are digitally recorded by various electronic, magnetic, optical, or mechanical methods on a surface layer deposited of one or more planar, round and rotating disks (or… …
57Videotape format war — The videotape format war was a period of intense competition or format war of incompatible models of video cassette recorders (VCR) in the late 1970s and the 1980s. It has gone down in marketing history as a classic example of technological… …
58London — /lun deuhn/, n. 1. Jack, 1876 1916, U.S. short story writer and novelist. 2. a metropolis in SE England, on the Thames: capital of the United Kingdom. 3. City of, an old city in the central part of the former county of London: the ancient nucleus …
59Data remanence — is the residual representation of data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that… …
60Auditory brainstem response — The auditory brainstem response (ABR) is an auditory evoked potential extracted from ongoing electrical activity in the brain and recorded via electrodes placed on the scalp. The resulting recording is a series of vertex positive waves of which I …
