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Common Characteristics of CPUs and performance factors

Total questions: 67

Worksheet time: 31mins

Name
Class
Date
1.
Q1: Processors have a speed measured in
a)
Hertz
b)
Bits
c)
Bytes
d)
Seconds
2.
Q2: Data and Instructions in use are stored in the:
a)
Processor
b)
Embedded System
c)
Hard Disk Drive
d)
Main Memory
3.
Q4: What doesn’t affect the performance of the computer
a)
Clock Speed
b)
Number of Cores
c)
Cache Size
d)
The number of instructions in the program
4.
Q5: If the number of cores goes up from 2 to 4 – what is the exact effect on performance?
a)
Performance decreases
b)
The max number of instructions executed per second doubles
c)
max number of instructions executed per second quadruples
d)
The max number of instructions executed per second is halved
5.
Q6: If the cpu speed goes up from 1GHZ to 4GHZ–what effect on performance?
a)
The max number of instructions executed per second doubles
b)
max number of instructions executed per second quadruples
c)
The max number of instructions executed per second is halved
d)
max number of instructions executed per second is quartered
6.
Q7: Speed goes up from 2GHZ to 4GHZ , number of cores 2 to 4 – what effect on performance?
a)
The max number of instructions executed per second doubles
b)
max number of instructions executed per second quadruples
c)
The max number of instructions executed per second is halved
d)
max number of instructions executed per second is quartered
7.
Q8: Speed go from 1GHZ to 4GHZ & cpu goes from 8 core to a dualcore–what effect on performance?
a)
The number of instructions executed per second doubles
b)
The number of instructions executed per second quadruples
c)
The number of instructions executed per second is halved
d)
number of instructions executed per second stays the same
8.
Q9: System where software & hardware are integrated on a circuitboard together?
a)
Desktop System
b)
Embedded System
c)
Operating System
d)
Point of Sales System
9.
Q10: Which is an example of an Embedded System:
a)
Laptops
b)
Tablets
c)
PCs
d)
Microwave
10.

Q11: Processors don’t do the following

a)
Process Data
b)
Execute Instructions
c)
Execute Data
d)
Operate in Hz
11.
Q13: What acts as an intermediary between the processor and the Main Memory?
a)
Bus
b)
User
c)
Cache
d)
Clock
12.
Q14: What is held in cache?
a)
All of the programming instructions
b)
Commonly used instructions and data
c)
Instructions that have been processed
d)
Data that hasn’t been used for a long time
13.
Q21: What component holds the address of the next instruction
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
14.
Q22: Results of calculations are held in this register:
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
15.
Q23: This holds the instruction/data after it is brought to the cpu from the main memory
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
16.
Q24: This holds the number of the current instruction being worked on
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
17.
Q25: This would perform an operation including the word “And”
a)
Arithmetic Logic Unit
b)
Accumulator
c)
Cache
d)
Control Unit
18.
Q26: This would send a signal such as “Memory Read”
a)
Arithmetic Logic Unit
b)
Accumulator
c)
Cache
d)
Control Unit
19.
Q27: This would perform an operation such as 5+8
a)
Arithmetic Logic Unit
b)
Accumulator
c)
Cache
d)
Control Unit
20.
Q31: This doesn’t happen during the Fetch part of the cycle:
a)
Address Bus is used
b)
Program Counter increments by one
c)
Arithmetic operations are performed
d)
Main Memory is addressed
21.
Q32: This doesn’t happen during the Decode / Execute part of the cycle:
a)
Current Instruction is held in the CIR
b)
Results are held in the Accumulator
c)
Status Register updated
d)
Instructions are transferred from Main Memory
22.
Q34: Carries address of the next instruction that will be fetched
a)
Address Bus
b)
Data Bus
c)
Control Bus
d)
System Bus
23.
Q35: What is a property of an Address Bus
a)
Carries Data and Instructions
b)
Uni-Directional
c)
Bi-Directional
d)
Carries control Signals
24.
Q37: What is transferred down the data bus?
a)
Data only
b)
Addresses only
c)
Data and Instructions
d)
Data, Instructions and Addresses
25.
Q40: What is the purpose of the accumulator?
a)
To perform arithmetic operations
b)
To hold the results of a calculation
c)
To hold the accumulation of instructions that have happened
d)
To remember the previous instruction being worked on
26.

What does CPU stand for?

a)

Computer Processing Unit

b)

Central Processing Unit

c)

Computer Processing Utility

d)

Computer Peripheral Unit

27.

Which of the following can affect the performance of a CPU?

a)

Cache size

b)

Number of cores

c)

Clock Speed

d)

All of the above

28.

Which part of the CPU controls the flow of data and instructions.

a)

Arithmetic Logic Unit

b)

Control Unit

c)

Cache

d)

Registers

29.

Which part of the CPU is responsible for all the calculations?

a)

Control Unit

b)

Arithmetic Logic Unit

c)

MDR

d)

MAR

30.

Which part of the CPU holds the immediate results of the calculations of the ALU?

a)

Accumulator

b)

Program Counter

c)

Memory Address Register

d)

Memory Data Register

31.

Which part of the CPU holds the memory address of the next instruction in the cycle?

a)

Accumulator

b)

Memory Address Register

c)

Memory Data Register

d)

Program Counter

32.

Tick the correct statements about the CPU in a computer.

a)

CPU stands for Central Processing Unit

b)

The CPU fetch and decodes instructions

c)

The speed of the CPU is usually in GHz

d)

If a CPU has many cores, this slows down the computer.

e)

The hard disk is part of the CPU.

33.

What is Cache memory?

a)

memory that is stored on Hard Disk.

b)

very fast memory inside the CPU.

c)

Random Access Memory

34.

Which of these statements about Von Neumann architecture is true?

a)

Only data is stored in primary memory

b)

Only instructions are stored in primary memory

c)

Data and instructions are both stored in primary memory

35.

What is an embedded system?

a)

A system that has many processors

b)

A computer designed to perform more than one task

c)

A small computer that forms part of a larger system

36.

What is the purpose of RAM?

a)

Stores the current data, program and files being used.

b)

Holds the BIOS and OS used at start up.

37.

What is the purpose of ROM?

a)

Holds the BIOS and OS used at start-up

b)

Holds the program, files and instructions in use.

38.

Read the statement below and select the correct response.


This is used as extra storage when the main memory ( RAM ) is full.

a)

Level 1 Cache

b)

ROM

c)

Level 2 Cache

d)

Virtual Memory

39.

What is held in cache?

a)

All of the programming instructions

b)

Commonly used instructions and data

c)

Instructions that have been processed

d)

Data that hasn’t been used for a long time

40.

What component holds the address of the next instruction?

a)

Memory Address Register

b)

Memory Data Register

c)

Accumulator

d)

Program Counter

41.

This holds the instruction/data temporarily after it is brought to the processor from the main memory

a)

Memory Address Register

b)

Memory Data Register

c)

Accumulator

d)

Program Counter

42.

This would perform an operation including the word “And”

a)

Arithmetic Logic Unit

b)

Control Unit

c)

Cache

d)

Accumulator

43.

This would perform an operation such as 5+8

a)

Control Unit

b)

Arithmetic Logic Unit

c)

Cache

d)

Accumulator

44.

This sends signals such as “I/O Read

a)

Control Unit

b)

Arithmetic Logic Unit

c)

Cache

d)

Accumulator

45.

This would reduce the number of memory/processor transfer

a)

Cache

b)

Virtual Memory

c)

Accumulator

d)

Clock Speed

46.

The ALU....

a)

does any maths or logic problems for the CPU

b)

stores data inside the CPU

c)

sends out control signals for the CPU

d)

holds specific data for the fetch-decode-execute cycle

47.

The CU...

a)

does any maths or logic problems for the CPU

b)

stores data inside the CPU

c)

sends out control signals for the CPU

d)

holds specific data for the fetch-decode-execute cycle

48.

The cache memory...

a)

does any maths or logic problems for the CPU

b)

stores frequently used instructions close to the CPU

c)

sends out control signals for the CPU

d)

holds specific data for the fetch-decode-execute cycle

49.

The registers...

a)

do any maths or logic problems for the CPU

b)

store data inside the CPU

c)

send out control signals for the CPU

d)

hold specific data for the fetch-decode-execute cycle

50.
Processors have a speed measured in...?
a)
Hertz
b)
Bits
c)
Bytes
d)
Seconds
51.
Data and Instructions in use are stored in the:
a)
Processor
b)
Embedded System
c)
Hard Disk Drive
d)
Main Memory
52.
Typical processor speed of 2016:
a)
16Hz
b)
100MHz
c)
4GHz
d)
300GHz
53.
What doesn’t affect the performance of the computer?
a)
Clock Speed
b)
Number of Cores
c)
Cache Size
d)
The number of instructions in the program ü
54.
Firmware in which software and hardware are integrated on a circuitboard is often used in what type of system?
a)
Desktop System
b)
Embedded System
c)
Operating System
d)
Point of Sales System
55.
Which is an example of an Embedded System:
a)
Washing Machine
b)
PCs
c)
Tablets
d)
Laptops
56.
What acts as an intermediary between the processor and the Main Memory?
a)
Bus
b)
User
c)
Cache
d)
Clock
57.
What is held in cache?
a)
All of the programming instructions
b)
Commonly used instructions and data
c)
Instructions that have been processed
d)
Data that hasn’t been used for a long time
58.

The processor…

a)

Carries out instructions

b)

Is main memory

c)

Is secondary storage

d)

Is an input device

59.

The CPU is:

a)

Control processing unit

b)

Centralised process unit

c)

Central process unified

d)

Central processing unit

60.

The main computer components are:

a)

Input/Output/CPU/Main memory

b)

CPU/Main memory/Secondary storage

c)

Input/Output/CPU/Main memory/Secondary storage

d)

CPU/Main memory/Secondary storage

61.

This is a secondary storage

a)

CPU

b)

GPU

c)

USB

d)

RAM

62.

This would perform an operation such as 5+8 ?

a)

Arithmetic Logic Unit

b)

Accumulator

c)

Cache

d)

Control Unit

63.

What is a property of an address bus?

a)

Carries data and instructions

b)

Uni-directional

c)

Bi-directional

d)

Carries control signals

64.

This carries address of the next instruction that will be fetched

a)

Address bus

b)

Data bus

c)

Control bus

d)

System bus

65.

What is transferred down the data bus?

a)

Data only

b)

Addresses only

c)

Data and instructions

d)

Data, instructions and addresses

66.

What accurately describes a peripheral?

a)

A component of a computer system

b)

A device that is not directly connected to the CPU

c)

A device that is directly connected to the CPU

d)

A device that is plugged in

67.

This is not a type of secondary storage

a)

Blu-Ray Drive/Disc

b)

Flash Memory

c)

Hard Disk Drive

d)

RAM

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