CS550 test questions and answers with
complete solutions Updated
Motherboard CORRECT ANSWERS Printed circuit board on which the CPU, RAM
chips and other electronic circuit elements of a digital computer are frequently located.
RAM CORRECT ANSWERS CPU does not have to read or write
memory bytes sequentially: bytes can be accessed in any arbitrary order through
_____. contents are wiped out when the power is turned off
CPU CORRECT ANSWERS a microprocessor made from a tiny
chip of silicon, sometimes as small as half an inch square with a huge number of tiny
semiconductor devices, called
transistors, etched into the silicon wafer. Each transistor is a microscopic digital switch
and
together they control, with perfect precision, billions of signals — little spikes of
electricity — that arise and disappear every second.
Clock Cycles CORRECT ANSWERS Every computer has an internal "clock" that
generates electrical pulses at a fixed
frequency. All CPU operations are synchronized with the clock's pulses; the
duration of CPU operations is measured in clock cycles. The CPU's speed depends
on the frequency of the clock.
bus CORRECT ANSWERS A microprocessor CPU connects to memory and to other
devices through a set of
lines (wires printed on the motherboard) controlled by digital electronics
Address bus CORRECT ANSWERS specifying memory addresses
Data bus CORRECT ANSWERS reading and writing memory values
Registers CORRECT ANSWERS What a CPU can do is defined by its instruction set
and internal ____: built-in memory cells that hold operands, memory addresses, and
intermediate results. Some are accessible to the programmer.
ROM CORRECT ANSWERS A small part of the computer memory; permanent non-
erasable memory. Contains the computer configuration program and hardware
diagnostic programs that
check various computer components
Operating system CORRECT ANSWERS program that has
the job of loading and executing other programs
complete solutions Updated
Motherboard CORRECT ANSWERS Printed circuit board on which the CPU, RAM
chips and other electronic circuit elements of a digital computer are frequently located.
RAM CORRECT ANSWERS CPU does not have to read or write
memory bytes sequentially: bytes can be accessed in any arbitrary order through
_____. contents are wiped out when the power is turned off
CPU CORRECT ANSWERS a microprocessor made from a tiny
chip of silicon, sometimes as small as half an inch square with a huge number of tiny
semiconductor devices, called
transistors, etched into the silicon wafer. Each transistor is a microscopic digital switch
and
together they control, with perfect precision, billions of signals — little spikes of
electricity — that arise and disappear every second.
Clock Cycles CORRECT ANSWERS Every computer has an internal "clock" that
generates electrical pulses at a fixed
frequency. All CPU operations are synchronized with the clock's pulses; the
duration of CPU operations is measured in clock cycles. The CPU's speed depends
on the frequency of the clock.
bus CORRECT ANSWERS A microprocessor CPU connects to memory and to other
devices through a set of
lines (wires printed on the motherboard) controlled by digital electronics
Address bus CORRECT ANSWERS specifying memory addresses
Data bus CORRECT ANSWERS reading and writing memory values
Registers CORRECT ANSWERS What a CPU can do is defined by its instruction set
and internal ____: built-in memory cells that hold operands, memory addresses, and
intermediate results. Some are accessible to the programmer.
ROM CORRECT ANSWERS A small part of the computer memory; permanent non-
erasable memory. Contains the computer configuration program and hardware
diagnostic programs that
check various computer components
Operating system CORRECT ANSWERS program that has
the job of loading and executing other programs
