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Number Systems
Test Description: Review for class test.
Instructions: Answer all questions to get your test result.
1) Using 8 bits, -12 in sign and magnitude is
A
111000000
B
10111100
C
11110100
D
10001100
2) The two's complement number 01001 in base 10 is
A
9
B
23
C
-9
D
-23
3) -32 in BCD is
A
100110010
B
100100011
C
101000110010
D
101100110010
4) The ASCII representation of the letter F is 1011110. What is the representation of the letter A?
A
1011001
B
1011001
C
1100011
D
1100010
5) 5.75 base 10 in base 2 is
A
101.01
B
11.101
C
101.11
D
01.101
6) 431 base 8 in binary is
A
100111
B
100011001
C
1010010000110000
D
100011100
7) 101011 base 2 in base 16 is
A
103
B
2B
C
A3
D
211
8) The result of this base 8 calculation is 763+524
A
1387
B
407
C
507
D
1507
9) The range of numbers in sign and magnitude using 5 bits is
A
-16 to 15
B
- 16 to 16
C
- 15 to 14
D
-15 to 15
10) The range of numbers in two's complement using 5 bits is
A
-15 to 14
B
-16 to 16
C
-15 to 15
D
-16 to 15
*select an answer for all questions
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