WorksheetsSystems Components
Total questions: 25
Worksheet time: 25mins
Similar to their desktop counterparts, notebook computers and handheld computers have a system unit that __________.
cannot run using a standard power supply
usually is less expensive than desktop computers with the same capabilities
contains electronic components that processes data
houses devices such as the keyboard, pointing devices, speakers, and display
Processor, memory module, expansion cards, ports and connectors are common components inside the system unit.
True
False
What is the motherboard?
The main circuit board in system unit that contains chips, integrated circuits, and transistors
The secondary circuit board in system unit that contains chips, integrated circuits, and transistors
____________________ is a package that temporarily holds data and instructions while they are being processed by the CPU.
Port
Processor
Expansion card
memory module
CPU stands for?
central processing unit
common processing unit
The CPU Interprets and carries out basic instructions that operate a computer.
True
False
The CPU has little impact on overall computing power and has no affect on most of a computer’s operations.
True
False
How is the CPU’s speed measured?
MIPS
MPIS
MSPI
ALU stands for arithmetic/login unit?
True
False
Temporary storage area that holds data and instructions
Register
System clock
ALU
processor
Synchronizes all computer
operations
Register
System Clock
ALU
Processor
Manufacturers state clock speed (the speed at which a processor executes instructions) in __________, which equate to one million and one billion ticks of the system clock, respectively.
kilobytes (KB) and megabytes (MB)
milliseconds (ms) and nanoseconds (ns)
megahertz (MHz) and gigahertz (GHz)
kilobytes per second (kbps) and megabytes
computers recognize only two discrete states: 1 or 0
True
False
When eight (8) bits are grouped together as a unit, they form a(n)
byte
bit
_________________________ refers to memory chips storing data that only can be read.
ROM
RAM
A(n) _________________________ chip is a blank ROM chip on which items can be placed permanently.
ROM
RAM
PROM
PRAM
Many of today’s computers support plug and play, with which the computer automatically can configure cards and other devices as they are
installed.
True
False
Sound card, modem card, video card, and network interface card, are circuit boards that add devices and
capabilities to the computer.
ports
processors
expansion slots
memory modules
The CPU contains __________.
input devices and output devices
the control unit and the arithmetic/logic unit
main memory and storage devices
__________ is the process of obtaining a program instruction or data item from memory.
Fetching
Storing
Decoding
Executing
__________ is the process of carrying out commands.
Fetching
Storing
Decoding
Executing
ANS: D
__________ is the process of writing the result to memory.
Fetching
Storing
Decoding
Executing
Logical operations __________.
involve matching one data item to another to determine if the first item is greater than, equal to, or less than the other item
include addition, subtraction, multiplication, and division
sort data items according to standard, predefined criteria in ascending order or descending order
use conditions with operators such as AND, OR, and NOT
USB stands for universal serial bus port.
True
False
System bus connects processor and RAM
True
False
