SIPPs— Single inline pin package.
SIPs— Single inline package
SNAP I, II, AND III SYSTEMS— Shipboard Non-
tactical ADP Program I, II and III Systems.
SOFTWARE— Programs, procedures, rules, and
documentation pertaining to the operation of a
computer system.
SOIC— Small-outline integrated circuit.
SOM— System operating manual.
SPS— Standby power supply.
SRAM— Static random access memory.
SSI— Small-scale integration.
ST-506— A fixed disk interface system.
SYNC— Synchronous.
SYNCHRO— A small motorlike analog device that
operates like a variable transformer and is used
primarily for the transmission of data among
analog equipments and stations.
TDUC— Transmit data from unit computer.
TFCC— Tactical Flag Command Center.
TO— Transistor-outline.
TRISTATE— Output configuration capable of as-
suming three output states: high, low, and high
impedance (open).
TTL— Transistor-transistor logic.
TTL-H— Transistor-transistor logic-high-speed.
TTL-S— Transistor-transistor logic-Schottky.
TTLC— Bipolar transistor-transistor logic series in
CMOS technology.
TTY— Teletype.
TVM— Time volatile memory.
UART— Universal asynchronous receiver/transmitter.
UNIX— An operating system developed by AT&T
(Trademark of AT&T).
UPS— Uninterruptible power supply.
USART— Universal synchronous/asynchronous
receiver transmitter.
USRT— Universal synchronous receiver transmitter.
UV— Ultraviolet.
UV EPROM— Ultraviolet-erasable PROM.
VF— Vacuum fluorescent.
VLSI— Very large-scale integration.
VMB— Virtual memory board.
VOS— Virtual operating system.
WD— Write data.
AI-9
