RadiSys EPC-5A, Справочное руководство по аппаратному и программному обеспечению

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Glossary
G-3
Boot Sequence: The order in which a computer searches external storage devices for
an operating system to boot. The boot device must be the first in the boot
sequence.
Byte: A group of 8 bits.
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C
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Central Processing Unit (CPU): A semiconductor device which performs the
processing of data in a computer. The CPU, also referred to as the
microprocessor, consists of an arithmetic/logic unit to perform the data
processing, and a control unit which provides timing and control signals
necessary to execute instructions in a program.
Chipset: One or more integrated circuits that, along with a CPU, memory, and other
peripherals, implements an IBM PC-AT compatible computer. The chipset
typically implements a DRAM controller, bus, interface logic, and PC
peripheral devices.
Column Address Strobe (CAS): An input signal from the DRAM controller to an
internal DRAM latch register specifying the column at which to read or write
data. The DRAM requires a column address and a row address to define a
memory address. Since both parts of the address are applied at the same
DRAM inputs, use of column addresses and row addresses in a multiplexed
array allows use of half as many pins to define an address location in a
DRAM device as would otherwise be required.
COM Port: A bi-directional serial communication port which implements the RS-232
specification.
Complimentary Metal Oxide Semiconductor (CMOS): A fast, low power
semiconductor RAM used to store system configuration data.
Conventional Memory: The first 640 KB of a computer’s total memory capacity. If a
computer has no extended memory, conventional memory equals the total
memory capacity. In typical computer systems, conventional memory can
contain BIOS data, the operating system, applications, application data, and
terminate and stay resident (TSR) programs. Also called system memory.