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WorksheetsComp Architecture
Total questions: 20
Worksheet time: 33mins
Name
Class
Date
1.
The following are the consequences of Moore’s law EXCEPT:
a)
Smaller size gives increased flexibility
b)
Fewer interconnections increases reliability
c)
Cost of chips is increasing
d)
Reduced power and cooling requirements
2.
The ____________ controls the CPU’s operations
a)
control Unit
b)
arithmetic logic unit
c)
registers
d)
bus
3.
____________ starts the operating system when the user turns on a computer system.
a)
Fetch Cycle
b)
Random Access Memory
c)
Boot Process
d)
Program Counter
4.
Convert 1001.101₂ to its decimal equivalent
a)
10.325₁₀
b)
9.125₁₀
c)
8.125₁₀
d)
9.625₁₀
5.
Convert -6₁₀ to its binary two’s complement equivalent using an 5 bit representation.
a)
11010₂
b)
11001₂
c)
00110₂
d)
11110₂
6.
The following are the main functions performed by a computer EXCEPT:
a)
Data processing
b)
Data loading
c)
Data storage
d)
Data movement
7.
All of the following are TRUE about the ENIAC EXCEPT:
a)
Programmed manually by switches
b)
Uses vacuum tubes
c)
Uses binary representation
d)
Takes a lot of space
8.
Represent the decimal number -21 in a 8 bit signed magnitude representation
a)
00010101₂
b)
10010101₂
c)
11101010₂
d)
11101011₂
9.
Convert 53.6875₁₀ to its binary equivalent.
a)
110101.1101₂
b)
101011.1101₂
c)
110101.1011₂
d)
010111.0011₂
10.
Write 0.0010112 in a normalised floating point format.
a)
1011₂ x 2⁻⁶
b)
1.011₂ x 2⁻³
c)
1011₂ x 2⁻⁴
d)
1.011₂ x 2³
11.
The significant milestone of the third generation computer was the introduction of _________________ in the production of the CPU.
a)
integrated circuit
b)
transistor
c)
registers
d)
cache
12.
Which of the following statements are TRUE about computer organization?
a)
Hardware details transparent to the programmer, control signals, interfaces between the computer and peripherals, memory technology used
b)
Attributes of a system visible to the programmer
c)
Instruction set, number of bits used to represent various data types, I/O mechanisms, techniques for addressing memory
d)
Access time is independent of location or previous access
13.
Which of the following is NOT an example of interrupt?
a)
Arithmetic overflow
b)
Memory parity error
c)
Illegal timer
d)
Power failure
14.
What is the value of 1155655₈ in hexadecimal representation?
a)
4DBCD₁₆
b)
4DCBA₁₆
c)
4DBAD₁₆
d)
4DABC₁₆
15.
What is the value of 100111.11₂ in octal representation?
a)
47.6₈
b)
39.75₈
c)
47.7₈
d)
48.6₈
16.
What is -20 in two’s complement with 6-bit representation?
a)
010100₂
b)
101100₂
c)
101011₂
d)
010011₂
17.
Which of the following is the normalized floating point format for 0.011001₂?
a)
1.1001 x 2³
b)
1.1001 x 2⁻³
c)
1.1001 x 2⁻²
d)
1.1001 x 2²
18.
hich of the following is NOT the example of architectural attributes?
a)
Instruction set
b)
I/O mechanisms
c)
Techniques for addressing memory
d)
Control signals
19.
In computing, 1GB is equal to ________________.
a)
1024 bytes
b)
1024 x 1024 bytes
c)
1024 x 1024 x 1024 bytes
d)
1024 x 1024 x 1024 x 1024 bytes
20.
A (an) ____________ is a device that implements a simple Boolean or logical function.
a)
memory cell
b)
gate
c)
integrated circuit
d)
vacuum tube
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