
CA Chapter 3
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Computers
University

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The binary number 1100 1011 1101(2) corresponds to which hexadecimal value:
DBC(16)
CDB(16)
CBD(16)
BDC(16)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the 80-bit floating-point representation, how many bits is the exponent:
14 bits
13 bits
16 bits
15 bits
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the IEEE 754/85 standard for double-extended precision floating-point representation, the length is:
80 bits
64 bits
32 bits
16 bits
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many characters are included in the extended ASCII code:
256
512
1024
128
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a computer's information transmission system, the bus types are:
Data bus, address bus, multipurpose bus (can be used as both data bus and address bus)
Parallel bus, serial bus, half-duplex bus
Internal processor bus, main memory bus, input-output bus
Data bus, address bus, control bus
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the 32-bit floating-point representation, how many bits is the significand:
20 bits
22 bits
23 bits
21 bits
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In computer representation, addition of signed integers gives incorrect results when:
Adding two numbers of the same sign results in a number of the opposite sign
Adding two numbers of different signs
Adding two positive numbers results in a negative number
Adding two negative numbers results in a positive number
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