1) Which of the following refers to a collection of programs that a computer executes?
a) Software
b) Assembler
c) Instructions
d) Source code correct answers A
2) Computers are machines that
a) design computer programs.
b) execute programs.
c) carry out a very narrow range of tasks.
d) are imprecise and slow. correct answers B
3) Computer programming is
a) the speed with which a computer operates.
b) the collection of peripheral devices connected to a computer.
c) the storage of data in the form of words and pictures.
d) the act of designing and implementing a computer program. correct answers D
4) Consider the following statements regarding computers:
I. Computers can execute a large number of instructions in a fraction of a second.
II. Computer application areas mainly target the research and scientific communities.
III. The physical components of a computer constitute its hardware.
IV. Unlike humans, a computer never gets bored or exhausted when performing repetitive tasks.
Which one of the following options is correct?
a) Only III is a valid statement.
b) I and III only are valid statements.
,c) I, II, and III only are valid statements.
d) I, III, and IV only are valid statements. correct answers D
Consider the following statements about computer programs:
I. Computer programs can be written by someone who has a basic knowledge of operating a
computer.
II. Computer programs can complete complex tasks quickly.
III. Large and complex computer programs are generally written by a group of programmers.
IV. Computer programs are composed of extremely primitive operations.
Which one of the following options is correct?
a) II and III only are correct statements.
b) I, II, III and IV are correct statements.
c) II, III, and IV only are correct statements.
d) I and IV only are correct statements. correct answers C
The Central Processing Unit is primarily responsible for
a) performing program control and data processing.
b) ensuring data persists when electrical power is turned off.
c) enabling a human user to interact with the computer.
d) interconnecting computers that are separated by distance. correct answers A
A single silicon chip made from potentially millions of transistors is called
a) a Central Processing Unit (CPU).
b) secondary Storage.
c) a Hard Disk.
d) an Optical Disk (such as a DVD). correct answers A
, An example of an output device that interfaces between computers and humans is
a) a keyboard.
b) a mouse.
c) a speaker.
d) a microphone. correct answers C
An example of an input device that interfaces between computers and humans is
a) a microphone
b) a monitor
c) a printer
d) a speaker correct answers A
Programs that are not running are usually stored
a) in the CPU's memory.
b) on the computer monitor.
c) in secondary storage.
d) on a backup device that is in a different physical location from the computer. correct answers
C
When a program begins to run,
a) It is moved from DVD to hard disk.
b) It is moved to the CPU's memory.
c) It is moved from the CPU's memory to hard disk.
d) It must be connected to a computer network. correct answers B
Which one of the following typically provides data persistence without electricity?
I. The CPU's memory