read-write head
519 track tape — The IBM System/360, released in 1964, introduced what is now generally known as 9 track tape. The magnetic tape is 1/2 inch (12.65 mm) wide, with 8 data tracks and one parity track for a total of 9 parallel tracks. Data is stored as 8 bit… …
52computer memory — memory (def. 11). * * * Introduction device that is used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer. Computers represent information in binary code,… …
53Manchester Mark 1 — This article is about the early British computer. For the aircraft, see Avro Manchester and Avro 533 Manchester. The Manchester Mark 1 was one of the world s first stored program computers. The Manchester Mark 1 was one of the earliest stored… …
54Tape drive — DDS tape drive. Above, from left right: DDS 4 tape (20 GB), 112m Data8 tape (2.5 GB), QIC DC 6250 tape (250 MB), and a 3.5 floppy disk (1.44 MB) A tape drive is a data storage device that reads and performs digital recording, writes data on a… …
55DVD — This article is about the storage media format. For the binocular vision condition, see Dissociated vertical deviation. DVD DVD R read/write side Media type Optical disc …
56Click of death — A standard ZIP100 disk Click of death is a term that became common in the late 1990s referring to the clicking sound in disk storage systems that signals the disk drive has failed, often catastrophically.[1] Contents …
57Commodore 64 peripherals — Commodore 64 Home Computer This article is about the various external peripherals of the Commodore 64 home computer. Contents 1 Storage …
58information processing — Acquisition, recording, organization, retrieval, display, and dissemination of information. Today the term usually refers to computer based operations. Information processing consists of locating and capturing information, using software to… …
59Racetrack memory — IBM Racetrack Memory is an experimental non volatile memory device under development at IBM s Almaden Research Center by a team led by Stuart Parkin. [ [http://www.almaden.ibm.com/spinaps/research/sd/?racetrack Spintronics Devices Research,… …
60File system — For library and office filing systems, see Library classification. Further information: Filing cabinet A file system (or filesystem) is a means to organize data expected to be retained after a program terminates by providing procedures to store,… …
