recording density
31Magnetic tape — 7 inch reel of ¼ inch wide audio recording tape, typical of consumer use in the 1950s–70s. Magnetic tape is a medium for magnetic recording, made of a thin magnetizable coating on a long, narrow strip of plastic. It was developed in Germany,… …
32UNIVAC FASTRAND — FASTRAND was a magnetic drum mass storage system built by Sperry Rand Corporation for their UNIVAC 1100 series and 490/494 series computers. A voice coil actuator moved a bar containing multiple single track recording heads, so these drums… …
33DV — For other uses, see DV (disambiguation). DV compatibility mark DV is a format for the digital recording and playing back of digital video. The DV codec was launched in 1995 with joint efforts of leading producers of video camcorders. The original …
34Data 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… …
35IBM 729 — The IBM 729 Magnetic Tape Unit was IBM s iconic tape mass storage system from the late 1950s through the mid 1960s. Part of the IBM 7 track family of tape units, it was used on late 700, most 7000 and many 1400 series computers. Like its… …
36Magnetic stripe card — An example of the reverse side of a typical credit card: Green circle #1 labels the Magnetic stripe A magnetic stripe card is a type of card capable of storing data by modifying the magnetism of tiny iron based magnetic particles on a band of… …
37rašymo tankis — statusas T sritis informatika apibrėžtis Duomenų kiekis, kurį galima įrašyti į vieną ↑laikmenos ilgio arba ploto vienetą. Išreiškiamas ↑bitų skaičiumi centimetre, colyje. atitikmenys: angl. areal density; bit density; recording density; writing… …
38Quarter-inch cartridge — tape (abbreviated QIC, commonly pronounced quick ) is a magnetic tape data storage format introduced by 3M in 1972, with derivatives still in use as of 2009. QIC comes in a rugged enclosed package of aluminum and plastic that holds two tape reels …
39Micropolis (company) — Micropolis Corporation was a disk drive company located in Chatsworth, California. The company was founded in 1976. Micropolis initially manufactured high capacity (for the time) hard sectored 5.25 inch floppy drives and controllers. Later… …
40IBM 7 track — [ right|thumb|280px|An IBM 704 mainframe with IBM 727 seven track tape drives on the left. (image courtesy of LLNL)] IBM s first magnetic tape data storage devices, introduced in 1952, use what is now generally known as 7 track tape. The magnetic …
