Small Computer System Interface
- Small Computer System Interface
Abbreviated SCSI, which is pronounced "[scuzzy]."
A high-speed parallel interface defined by the ANSI X3T9.2 committee. SCSI is used to connect a computer to peripheral devices using only one port. Devices connected in this way are said to be "daisy-chained,"and each device must have a unique identifier or priority number.
SCSI has been standard on the Macintosh since the Mac Plus was introduced, and it is available on personal computers as a single host adapter, using a special connector. SCSI is often used to connect hard disks, tape drives, CD-ROM drives, and other mass storage media, as well as scanners and printers.
Features of the SCSI definition include:
• The bus can manage simultaneous reads and writes.
• The original standard supports as many as 7 devices on a single host adapter; new standards support as many as 16 devices and a bus length of up to 25 meters (80 feet).
• SCSI devices have their own control circuitry and can disconnect from the host adapter to process tasks on their own, freeing the bus for other purposes.
Table S.1 lists the various SCSI standards, along with the bus speed in Mbps, the bus width in bits, and the maximum number of devices supported.
TABLE S.1 SCSI STANDARDS
SCSI Standard / Maximum Bus Speed / Bus Width / Maximum Devices
SCSI-1 / 5 / 8 / 8
Fast SCSI / 10 / 8 / 8
Fast/Wide SCSI / 20 / 16 / 16
Ultra SCSI / 20 / 8 / 8
Wide Ultra SCSI / 40 / 16 / 16
Ultra2 SCSI / 40 / 8 / 8
Wide Ultra2 SCSI / 80 / 16 / 16
Dictionary of networking .
2014.
Look at other dictionaries:
Small computer system Interface — Connecteurs SCSI 25 50 broches (à gauche, le connecteur 50 broches) SCSI, Small Computer System Interface en anglais, est un standard définissant un bus informatique permettant de relier un ordinateur à des périphériques ou bien même à un autre… … Wikipédia en Français
Small Computer System Interface — Small Computer System Interface, SCSI … Universal-Lexikon
Small Computer System Interface — Dos conectores SCSI SCSI, acrónimo inglés de Small Computers System Interface (Interfaz de Sistema para Pequeñas Computadoras), es una interfaz estándar para la transferencia de datos entre distintos dispositivos del bus de la computadora.… … Wikipedia Español
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Small Computer System Interface — SCSI standard, SCSI compatible, standard for disks and peripheral equipment for personal computers, SCSI … English contemporary dictionary
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