Words starting with scsiada
Maybe these words will be useful:
- scsi — Small Computer System Interface
- scsi id — (hardware) The unique address of a SCSI device. SCSI IDs range from 0 to 7 for 8-bit SCSI systems, 0 to 15 for 16-bit and 0 to 31 for 32-bit systems. The SCSI adaptor is usually assigned ID 7. A device's SCSI ID is often set by switches on the device.
- scsi adaptor — (hardware) (Or "host adaptor") A device that communicates between a computer and its SCSI peripherals. The SCSI adaptor is usually assigned SCSI ID 7. It is often a separate card that is connected to the computer's bus (e.g. PCI, ISA, PCMCIA) though increasinly, SCSI adaptors are built in to the motherboard. Apart from being cheaper, busses like PCI are too slow to keep up with the newer SCSI standards like Ultra SCSI and Ultra-Wide SCSI. There are several varieties of SCSI (and their connectors) and an adaptor will not support them all. The performance of SCSI devices is limited by the speed of the SCSI adaptor and its connection to the computer. An adaptor that plugs into a parallel port is unlikely to be as fast as one incorporated into a motherboard. Fast adaptors use DMA or bus mastering. Some SCSI adaptors include a BIOS to allow PCs to boot from a SCSI hard disk, if their own BIOS supports it. Note that it is not a "SCSI controller" - it does not control the devices, and "SCSI interface" is redundant - the "I" of "SCSI" stands for "interface".
- scsi controller — SCSI adaptor
- scsi initiator — (hardware) A device that begins a SCSI transaction by issuing a command to another device (the SCSI target), giving it a task to perform. Typically a SCSI host adapter is the initiator but targets may also become initiators.
- scsi interface — SCSI adaptor
- scsi reconnect — (hardware) The ability of a SCSI initiator to initiate new transactions before earlier ones have completed. A target or initiator can disconnect from the bus when it experiences a delay in completing a task so that another device can use the bus. It can reconnect later and complete the task.
- scsi target — (hardware) A SCSI device that executes a command from a SCSI initiator to perform some task. Typically the target is a SCSI peripheral device but the host adapter can also be a target.
- scsi-1 — (hardware) The original SCSI, as opposed to SCSI-2 or SCSI-3.
- scsi-2 — (hardware) 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.