WorksheetsBinary & ASCII
Total questions: 15
Worksheet time: 11mins
Name
Class
Date
1.
11111 can be read as what decimal number?
a)
31
b)
10
c)
18
d)
63
2.
10 can be read as what decimal number?
a)
10
b)
1
c)
4
d)
2
3.
Binary is:
a)
a system using the digits 0 and 1 to represent a letter, digit, or other character in a computer or other electronic device.
b)
the most common format for text files in computers and on the Internet
4.
ASCII is:
a)
a numerical system that has 2 rather than 10 as a base.
b)
the most common format for text files in computers and on the Internet
5.
ASCII was developed in what decade?
a)
1950s
b)
1960s
c)
1970s
d)
1940s
6.
ASCII is pronounced:
a)
Ask-ee
b)
A-skee
c)
A-skews-me
7.
True or False: In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s).
a)
True
b)
False
8.
Convert 65 to binary
a)
1000001
b)
1000010
c)
1000011
d)
1100010
9.
Convert 1000001 its decimal value
a)
65
b)
64
c)
66
d)
32
10.
What letter does 0100 0010 represent according to binary code?
a)
A
b)
B
c)
Z
d)
b
11.
The decimal number for a blank space is...?
a)
32
b)
1
c)
2
d)
126
12.
A blank space represented as binary code is...
a)
0010 0000
b)
0000 0001
c)
0000 0010
d)
0111 1111
13.
The word "Hello" is made up of 5 characters. How many bits is this (hint: how many 1's and 0's are needed to write it)
a)
40
b)
60
c)
80
d)
48
14.
True or False: The binary number for a capital 'A' is the same as the binary number for a lower-case 'a'?
a)
True
b)
False
15.
Convert this to a decimal number
a)
13
b)
12
c)
10
d)
8
100 %
