Tigercat System Board Manual
LM75
- The LM75 is a temperature
sensor. The host can query the LM75
at any time to read the temperature.
Its 3.0V to 5.5V supply voltage range,
low supply current and I
2
C interface,
make it ideal for a wide range of appli-
cations.
LM78
- The LM78 is a highly inte-
grated Data Acquisition system for
hardware monitoring of servers, per-
sonal computers or virtually any micro-
processor based system. In a PC, the
LM78 can be used to monitor tempera-
tures, power supply voltages and fan
speeds.
NS
- An acronym for Nanosecond. One
billionth of a second. Measure of the
access time of RAM.
Parallel
- A form of data transmission
in which the data is sent one byte at a
time over several wires that each carry
one byte. In parallel transmission, all
the bytes arrive simultaneously, as op-
posed to serial transmission in which
bits arrive one by one.
Parallel Port
- A connection for a
printer or similar peripheral. Generally,
parallel ports are output only. See Bi-
directional Parallel Port and ECP.
Parity
- Logic that detects the presence
of an error in memory. Generally, a
single parity bit is used for each byte
(8 bits) of data. The most commonly
used forms of parity are even parity, odd
parity and checksums.
PCI
- An acronym for Peripheral Com-
ponent Interconnect. A high perfor-
mance 32-bit or 64-bit bus developed
by Intel Corporation. PCI is
designed to be independent of the hard-
ware architecture to ensure compatibil-
ity with future computer systems. See
VESA Local Bus and ISA.
Pentium
- A high performance 64-bit
CISC processor designed and manufac-
tured by Intel Corporation.
Pipeline
- In DRAMs and SRAMs, a
method for increasing the performance
using multistage circuitry to stack or
save data while new data is being ac-
cessed.
Plug and Play
- A standard developed
to ensure easy installation of peripher-
als. Theoretically, a newly installed card
will automatically configure itself and
work properly without requiring jumper
configuration or device drivers.
POST
- An acronym for Power On Self
Test. A diagnostic program that is run
whenever the system is cold booted.
RAM
- An acronym for Random
Access Memory. A type of memory that
is used as the working memory of a
computer system. See DRAM and
SRAM.
ROM
- An acronym for Read Only
Memory. A type of memory that retains
its data without requiring power. Once
written, it cannot be modified. See
EPROM and Flash ROM.
Glossary
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