Also found in: Acronyms.


A version of the SCSI command specification.

SCSI-2 shares the original SCSI's asynchronous and synchronous modes and adds a "Fast SCSI" mode (<10MB/s) and "Wide SCSI" (16 bit, <20MB/s or rarely 32 bit).

Another major enhancement was the definition of command sets for different device classes. SCSI-1 was rather minimalistic in this respect which led to various incompatibilities especially for devices other than hard-disks. SCSI-2 addresses that problem. allowing scanners, hard disk drives, CD-ROM drives, tapes and many other devices to be connected.

Normal SCSI-2 equipment (not wide or differential) can be connected to a SCSI-1 bus and vice versa.
References in periodicals archive ?
Another possibility for use with a parallel port is the SCSI-2 adapter, for which two speeds are available.
05GB SCSI-2 hard disk drives are priced at $1,899, and Dell also offers a complete selection of monitors starting at $199.
A: SCSI-2 is available Global Engineering or the draft copy on the SCSI committee (T10) web site: www.
The industry understood SCSI-2 and SCSI-3, but when the T10 committee went to Fast-20 and then to SPI-2, everyone was at a loss as to what to call SCSI devices that supported those standards.
Where did half of the connectors go between the SCSI-2 and SCSI-1 connectors?
The kit includes the new INI(R)-9090U-MAC SCSI-2 host adapter with both internal and external connectors capable of attaching up to 15 SCSI and SCSI-2 peripherals.
SCSI-1 is often lumped together with SCSI-2 as a basic starting level.
With direct Web links to the SCSI Mechanic and SCSI-2 Specification pages, it's easy to keep up with the latest information about software upgrades, as well as any tips or tricks to help get the most out of the program.
Those devices can be any combination of SCSI, SCSI-2, SCSI-3, UltraSCSI and Ultra2 SCSI devices, including high-speed disks, as well as CD-ROM, removable, optical and tape drives.
But even before that, work had already begun on the SCSI-2 standard.
To exploit the advantages of the PCI bus architecture, the ABP940-UW delivers optimal data transfer performance to any combination of up to 15 SCSI-1, SCSI-2 and SCSI-3 devices such as scanners, hard drives and removable storage devices.