storage while the data is being
operated on.
processing unit
. (1) A functional
unit that consists of one or more
processors and their internal
storages. (I) (A)
(2) See
processor.
processor
. A functional unit that
interprets and executes instructions.
A processor consists of at least an
instruction control unit and an
arithmetic and logic unit. (T) See
microprocessor and central
processing unit.
program
. (1) A sequence of
instructions that a computer can
interpret and execute. (2) To
design, write, modify, and test
computer programs. (I) (A)
programmable read-only memory
(PROM)
. A storage device that,
after being written to once, becomes
read-only memory. (T) (A)
prompt
. A visual or audible
message sent by a program to
request the user's response. (T)
PUN
. Physical unit number.
R
RAID
. Redundant array of
independent disks.
RAM
. Random access memory.
random access memory (RAM)
.
(1) A storage device in which data
can be written and read. (2) A
storage device into which data is
written and from which data is read
in a nonsequential manner.
RAS
. Reliability, availability, and
serviceability.
read
. To acquire or interpret data
from a storage device, from a data
medium, or from another source.
read-only memory (ROM)
.
Memory in which stored data
cannot be modified by the user
except under special conditions. See
also EEPROM, EPROM, and PROM.
record
. (1) A set of data treated as
a unit. (2) A set of one or more
related data items grouped for
processing.
refresh
. (1) To recharge a memory
location in volatile memory with an
electric current so that it retains a
state or binary value. (2) In
computer graphics, the process of
repeatedly producing a display
image on a display surface so that
the image remains visible.
register
. (1) An integrated circuit
that contains 8, 16, or 32 storage
locations, each of which can store 1
bit of binary data. See also binary.
(2) An area that stores binary data
while it is being processed by the
computer.
repeater
. A device used to amplify
or reshape signals.
resolution
. In video monitors, a
measure of the sharpness of an
image, expressed as the number of
244
Netfinity 3500 User's Handbook
Summary of Contents for Netfinity 3500
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Page 14: ...Laser Compliance Statements xii Netfinity 3500 User s Handbook...
Page 32: ...Input Output Connectors 14 Netfinity 3500 User s Handbook...
Page 200: ...Replacing the Battery 182 Netfinity 3500 User s Handbook...
Page 210: ...Ordering Publications 192 Netfinity 3500 User s Handbook...
Page 250: ...Taiwan Class A Electronic Emission Statement 232 Netfinity 3500 User s Handbook...
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Page 294: ...IBM Part Number 05L2067 Printed in U S A January 1998 5L2 67...
