Lenovo PC 300GL Understanding Your Personal Computer 6267, 6277, 6287 - Page 61

expansion bus, erasable programmable read-only memory

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DRAM. Dynamic random-access memory. Dual inline memory module. A small circuit board with memory-integrated circuits containing signal and power pins on both sides of the board. dual processing. A process in which a personal computer uses the resources of two microprocessors, instead of one, to share the processing tasks. This architecture provides the capability of faster processing speed and faster throughput to input/output devices. Most operating systems that support dual processing use symmetric multiprocessing. E EEPROM. Electrically erasable programmable read-only memory. electrically erasable programmable read-only memory (EEPROM). EPROM that can be reprogrammed while it is in the computer. EPROM. Erasable programmable read-only memory. erasable programmable read-only memory (EPROM). Programmable read-only memory that can be erased by a special process and reused; specifically, a PROM that must be removed from the computer to be reprogrammed. expansion bus. An extension of the I/O bus that has connectors for attaching adapters to the bus. expansion slot. In personal-computer systems, one of several receptacles in the rear panel of the system unit into which a user can install an adapter. F file. A named set of records stored or processed as a unit. flash memory. A data storage device that is programmable, erasable, and does not require continuous power. The chief benefit of flash memory over other programmable and erasable data storage devices is that it can be reprogrammed without being removed from the circuit board. format. To prepare a hard disk or diskette to hold information. frequency. The rate of signal oscillation, expressed in hertz. G GB. Gigabyte. gigabyte. (1) For processor storage and real and virtual memory, 230 or 1073741824 bytes. (2) For disk storage capacity, 1000000 KB. (3) For transmission rates, 1000000000 bytes. H hard disk drive. A disk drive that reads and writes data on rigid disks and can be installed in or connected to a computer. hardware. (1) All or part of the physical components of an information processing system, such as computers or peripheral devices. (2) The equipment, as opposed to the programming, of a computer. (3) Contrast with software. hertz (Hz). A unit of frequency equal to one cycle per second. hex. See hexadecimal. hexadecimal. Pertaining to a system of numbers to the base 16; hexadecimal digits range from 0 through 9 and A through F, where A represents 10 and F represents 15. I input/output. Pertaining to a device, process, or channel involved in data input, data output, or both. input/output device. A device in a data processing system by means of which data can be entered into the system, received from the system, or both. instruction. A statement that specifies an operation to be performed by a microprocessor and that identifies data involved in the operation. 53

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DRAM
.
Dynamic random-access memory.
Dual inline memory module
.
A small circuit board
with memory-integrated circuits containing signal
and power pins on both sides of the board.
dual processing
.
A process in which a personal
computer uses the resources of two microprocessors,
instead of one, to share the processing tasks.
This
architecture provides the capability of faster
processing speed and faster throughput to
input/output devices.
Most operating systems that
support dual processing use symmetric
multiprocessing.
E
EEPROM
.
Electrically erasable programmable
read-only memory.
electrically erasable programmable read-only
memory (EEPROM)
.
EPROM that can be
reprogrammed while it is in the computer.
EPROM
.
Erasable programmable read-only
memory.
erasable programmable read-only memory
(EPROM)
.
Programmable read-only memory that
can be erased by a special process and reused;
specifically, a PROM that must be removed from the
computer to be reprogrammed.
expansion bus
.
An extension of the I/O bus that
has connectors for attaching adapters to the bus.
expansion slot
.
In personal-computer systems, one
of several receptacles in the rear panel of the system
unit into which a user can install an adapter.
F
file
.
A named set of records stored or processed as
a unit.
flash memory
.
A data storage device that is
programmable, erasable, and does not require
continuous power.
The chief benefit of flash
memory over other programmable and erasable data
storage devices is that it can be reprogrammed
without being removed from the circuit board.
format
.
To prepare a hard disk or diskette to hold
information.
frequency
.
The rate of signal oscillation, expressed
in hertz.
G
GB
. Gigabyte.
gigabyte
.
(1)
For processor storage and real and
virtual memory, 2
30
or 1073741824 bytes.
(2) For
disk storage capacity, 1000000 KB.
(3) For
transmission rates, 1000000000 bytes.
H
hard disk drive
.
A disk drive that reads and writes
data on rigid disks and can be installed in or
connected to a computer.
hardware
.
(1)
All or part of the physical
components of an information processing system,
such as computers or peripheral devices.
(2) The
equipment, as opposed to the programming, of a
computer.
(3)
Contrast with software.
hertz (Hz)
.
A unit of frequency equal to one cycle
per second.
hex
.
See hexadecimal.
hexadecimal
.
Pertaining to a system of numbers to
the base 16; hexadecimal digits range from 0
through 9 and A through F, where A represents 10
and F represents 15.
I
input/output
.
Pertaining to a device, process, or
channel involved in data input, data output, or both.
input/output device
.
A device in a data processing
system by means of which data can be entered into
the system, received from the system, or both.
instruction
.
A statement that specifies an operation
to be performed by a microprocessor and that
identifies data involved in the operation.
53