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WorksheetsComputer components
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
CPU stands for central ____ unit.
a)
protection
b)
packet
c)
plasma
d)
processing
2.
The ____ is the component of the processor that directs and coordinates most of the operations in the computer.
a)
CPU
b)
ALU
c)
control unit
d)
memory
3.
The system ____ generates regular electronic pulses that set the operating pace of the system unit.
a)
processor
b)
control
c)
clock
d)
cache
4.
Computers are only able to recognize two states of 0's and 1's known as _____.
a)
bytes
b)
the binary system
c)
code system
d)
cache
5.
A(n) _____ is the smallest unit of data a computer can process.
a)
bit
b)
0
c)
character
d)
digit
6.
_____ size is the number of bits the processor can interpret and execute at a given time.
a)
Word
b)
Bus
c)
Byte
d)
Power
7.
Each channel, called a ____, allows the various devices both inside and attached to the system unit to communicate with one another.
a)
cache
b)
processor
c)
bus
d)
byte
8.
A ____, which is formed when 8 bits are grouped together, provides enough different combinations of 0s and 1s to represent 256 different characters.
a)
bit
b)
byte
c)
cache
d)
digit
9.
____ is a temporary storage area of memory that stores the contents of frequently used data or instructions.
a)
cache
b)
RAM
c)
read-only memory (ROM)
d)
processor
10.
The ____, sometimes called a system board, is the main circuit board of the computer.
a)
cache
b)
motherboard
c)
processor
d)
bus
11.
The ______, also called the central processing unit (CPU), interprets and carries out the basic instructions that operate a computer.
a)
processor
b)
code system
c)
flash memory
d)
firmware
12.
______, also called main memory, consists of memory chips that can be read from and written to by the processor and other devices.
a)
RAM
b)
ROM
c)
Flash memory
d)
cache
13.
______ is nonvolitile and refers to memory chips storing permanent data and instructions.
a)
RAM
b)
read-only memory (ROM)
c)
flash memory
d)
firmware
14.
_______ helps speed the processes of the computer because it stores frequently used instructions and data.
a)
flash memory
b)
read-only memory (ROM)
c)
memory cache
d)
RAM
15.
billion cycles per second
a)
megaherts (MHz)
b)
herts (Hz)
c)
gigahertz (GHz)
16.
million cycles per second
a)
herts (Hz)
b)
megahertz (MHz)
c)
gigahertz (GHz)
17.
Performs calculations (i.e. addition, division, multiplication, subtraction)
a)
MAR (Memory Address Register)
b)
MDR (Memory Data Register)
c)
CIR (Current Instruction Register)
d)
PC (Program Counter)
e)
ALU (Arithmetic and Logic Unit)
18.
The CPU is....
a)
The part of a computer that inputs data
b)
The part of a computer that processes instructions
c)
The part of a computer that outputs data
d)
The part of a computer that permanently stores data
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