- #Sas university edition parallels serial#
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- #Sas university edition parallels Pc#
- #Sas university edition parallels mac#
Starting with the Amiga 600/1200/4000 systems Commodore switched to the IDE interface.
Commodore included SCSI on the Amiga 3000/3000T systems and it was an add-on to previous Amiga 500/2000 models.
#Sas university edition parallels serial#
Sun switched its lower-end range to Serial ATA (SATA).
#Sas university edition parallels mac#
Apple dropped on-board SCSI completely in favor of IDE and FireWire with the (Blue & White) Power Mac G3 in 1999, while still offering a PCI SCSI host adapter as an option on up to the Power Macintosh G4 (AGP Graphics) models. Apple started using the less-expensive parallel ATA (PATA, also known as IDE) for its low-end machines with the Macintosh Quadra 630 in 1994, and added it to its high-end desktops starting with the Power Macintosh G3 in 1997.
#Sas university edition parallels Pc#
Since its standardization in 1986, SCSI has been commonly used in the Amiga, Atari, Apple Macintosh and Sun Microsystems computer lines and PC server systems. The "small" reference in "small computer system interface" is historical since the mid-1990s, SCSI has been available on even the largest of computer systems. The NCR facility in Wichita, Kansas is widely thought to have developed the industry's first SCSI controller chip it worked the first time. Ī number of companies such as NCR Corporation, Adaptec and Optimem were early supporters of SCSI.
#Sas university edition parallels full#
Almost a full day was devoted to agreeing to name the standard "Small Computer System Interface", which Boucher intended to be pronounced "sexy", but ENDL's Dal Allan pronounced the new acronym as "scuzzy" and that stuck. Until at least February 1982, ANSI developed the specification as "SASI" and "Shugart Associates System Interface" however, the committee documenting the standard would not allow it to be named after a company. SASI is a fully compliant subset of SCSI-1 so that many, if not all, of the then-existing SASI controllers were SCSI-1 compatible. SASI, which was used in mini- and early microcomputers, defined the interface as using a 50-pin flat ribbon connector which was adopted as the SCSI-1 connector. SASI controller boards were typically the size of a hard disk drive and were usually physically mounted to the drive's chassis.
Ī SASI controller provided a bridge between a hard disk drive's low-level interface and a host computer, which needed to read blocks of data. Larry Boucher is considered to be the "father" of SASI and ultimately SCSI due to his pioneering work first at Shugart Associates and then at Adaptec.
SCSI is derived from "SASI", the " Shugart Associates System Interface", developed beginning 1979 and publicly disclosed in 1981. Further refinements have resulted in improvements in performance and support for ever-increasing storage data capacity.
SCSI-2 was published in August 1990 as X3.T9.2/86-109, with further revisions in 1994 and subsequent adoption of a multitude of interfaces. The ancestral SCSI standard, X3.131-1986, generally referred to as SCSI-1, was published by the X3T9 technical committee of the American National Standards Institute (ANSI) in 1986. The initial Parallel SCSI was most commonly used for hard disk drives and tape drives, but it can connect a wide range of other devices, including scanners and CD drives, although not all controllers can handle all devices. The SCSI standard defines command sets for specific peripheral device types the presence of "unknown" as one of these types means that in theory it can be used as an interface to almost any device, but the standard is highly pragmatic and addressed toward commercial requirements. The SCSI standards define commands, protocols, electrical, optical and logical interfaces. Small Computer System Interface ( SCSI, / ˈ s k ʌ z i/ SKUZ-ee) is a set of standards for physically connecting and transferring data between computers and peripheral devices.
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