Indiana Science Grade 7

Chapter 15: Electronics and Computers

Section 2 Self-Check Quiz-Eng.

1.
Information stored in computers must be converted to a(n) __________.
A)analog signal
B)digital signal
C)program
D)hardware component
2.
A number that is expressed using only the digits 0 and 1 is called __________.
A)a binary number
B)a base ten number
C)a prime number
D)binumeric
3.
In the base ten number system, what is the 7 in 347 equal to?
A)7 plus 100
B)7 x 21
C)7 x 100
D)7 plus 20
4.
Which of the following base two numbers is equal to the base ten number 13?
A)1101
B)310
C)221
D)1110
5.
If the base ten number 15 is written 1111 in the binary system, how would it be written in base 5?
A)10
B)11
C)111
D)30
6.
What is the base ten equivalent of the binary number 1100100?
A)100
B)13
C)128
D)1,200
7.
How would you write the base ten number 500 in binary?
A)5100100
B)11110100
C)111110100
D)11111010
8.
A computer's temporary memory is called __________.
A)ROM
B)RAM
C)C++
D)a hard disk
9.
A(n) __________ is a series of instructions that tell the computer how to do a job.
A)program
B)hard disk
C)integrated circuit
D)CPU
10.
Which of the following is NOT a computer language?
A)Basic
B)Compiler
C)C++
D)Java
11.
Which of the following is NOT computer hardware?
A)hard disk drive
B)word processing program
C)keyboard
D)microprocessor
12.
Which of the following statements about computer information storage is correct?
A)Information on a hard disk is stored with electronic switches.
B)Information stored in ROM is lost when the computer is turned off.
C)Information on a hard disk is stored magnetically.
D)Information stored on a hard disk can only be read and not changed.
13.
Which of the following storage methods is used for information that can be read only and not changed?
A)RAM
B)floppy disk
C)hard disk
D)ROM
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