Characters Representation
X86 Registers
Test on data representation
1.
All data manipulated by computers must be in
format.
2.
Computers cannot process images because they have no way of representing pictures.
True
False
3.
The decimal system has a base of 10, while the hexadecimal system has a base of:
2
8
16
4
4.
One of the following numbers is illegal in base 4:
1234
3320
10000
111111
5.
The decimal equivalent of the number (200)
5
is :
125
1000
600
None of the above
6.
The decimal equivalent of the number (200)
3
is:
600
180
9
18
7.
The binary equivalent of the number (700)
16
is:
000000000111
11100000000
0111
111000000
8.
The octal equivalent of the number (700)
16
is:
1000
700
3400
7000
9.
The octal equivalent of the number (1100010)
2
is:
310
142
304
320
10.
The hexadecimal equivalent of the number (1100010)
2
is:
610
A4
62
None of the above
11.
The hexadecimal equivalent of the number (10)
10
is:
A
16
10
None of the above
12.
The binary equivalent of the number (20)
10
is:
11001
10111
10101
10100
13.
The signed-magnitude binary representation of the number +27 is:
00011011
11111011
11011000
None of the above
14.
The signed-magnitude binary representation of the number -227 is:
11111111
10000000
01111111
None of the above
15.
Using 8-bits signed-magnitude representation, the range of numbers that can be represented is:
-128 to +128
-255 to +255
-127 to +127
-256 to +256
16.
Using the same number of bits, both the signed-magnitude and 1's complement representations will have the same range.
True
False
17.
All signed-number representations suffer from the zero double representation problem.
True
False
18.
The 1's complement representation of signed-numbers is the most widely used in computers.
True
False
19.
The 2's complement representation of –34 is:
11100010
11011110
01100010
00100010
20.
Overflow can occur when adding two numbers with the same sign.
True
False
21.
A
bit is added to data for error checking/detection.
22.
The
code is the most popular binary codes for character representation in computers.
23.
The
is a 16-bit code that can represent all the characters in all the languages of the world.
24.
The binary data 0000000 with even parity becomes:
00000000
10000000
00000001
None of the above
25.
The binary data 0000000 with odd parity becomes:
00000000
10000000
00000001
None of the above