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Glossary
CCITT
International Telephone and Telegraph Consultative Committee. The international standards body for telecommunications.
CCS (Command Control Set)
A standard set of SCSI commands used to communicate with SCSI devices.
CDB (Command Descriptor Block)
A block of communication passed from the SCSI host to the SCSI target that provides all control information the target needs to carry out a command.
CPU (Central Processing Unit)
A personal computer’s main microprocessor chip.
decode
The act of recovering the original information from an encoded signal.
differential
Refers to the electrical configuration of the signals used on the SCSI bus. A set of two conductors are used to maintain a positive (+) and a negative
disconnect
The function used by a SCSI target to remove itself from the SCSI bus and release the control of the bus to other users.
DMA (Direct Memory Access)
A fast method of moving data between two processor subsystems without processor intervention.