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1.1 Systems Architecture/CPU OCR

Total questions: 21

Worksheet time: 12mins

Name
Class
Date
1.
What does CPU stand for?
a)
Central Processing Unit
b)
Computer Protocol User
c)
Cool Pokemon Unit
d)
Computer Processing Unit
2.
Bob has a 1GHZ dual core CPU, Amy has a 2GHZ single core CPU. Which can process more instructions per second?
a)
Bob
b)
Amy
c)
Equal
d)
Neither can process anything
3.
Which of the following adjustments to an internal component could improve the performance of a CPU?
a)
Add more cores
b)
Decrease the cache
c)
Get a bigger motherboard
d)
Remove the OS
4.
What happens if you increase the clock speed?
a)
CPU can process instructions quicker
b)
CPU can process more instructions at the same time
c)
CPU will explode
d)
CPU processes too fast for the cache to handle
5.
What happens if you increase the number of cores
a)
CPU can process instructions quicker
b)
CPU can process more instructions at the same time
c)
CPU will explode
d)
CPU processes too fast for the cache to handle
6.

Which of these is an embedded system (firmware)

a)

Computer

b)

Smart Phone

c)

Pizza

d)

Microwave

7.
Barry has a 1GHZ dual core CPU. He improves it to a 4GHZ quad core CPU. What is the effect on the performance of his computer?
a)
The number of instructions executed per second doubles
b)
The number of instructions executed per second triples
c)
The number of instructions executed per second quadruples
d)
The number of instructions executed per second improves by 8 times
8.

Which of these are not steps in the FDE cycle?

a)

Instructions are fetched from main memory

b)

Instructions are decoded in the control unit

c)

The decoded instruction is executed

d)

The ALU decodes the instructions

e)

The program counter transfers the data to be decoded to the MDR

9.

Which of the following has the largest memory?

a)

RAM

b)

Cache

10.

Which of the following is the fastest memory?

a)

RAM

b)

Cache

11.
Where are the results of calculations stored?
a)
Accumulator
b)
ALU
c)
MDR
d)
CIR
12.
Which component would calculate the result of 6 * 4?
a)
Accumulator
b)
ALU
c)
Control Unit
d)
MAR
13.

Which of these are input devices?

a)

Microphone

b)

Headphones

c)

Printer

d)

USB Stick

e)

Scanner

14.

Which of the following are not secondary storage devices?

a)

Hard Drive

b)

USB Stick

c)

CD

d)

RAM

e)

Registers

15.
Which of these most resembles an opcode?
a)
Store
b)
7
c)
yes
d)
=
16.
Which of these most resembles an operand?
a)
Store
b)
7
c)
yes
d)
=
17.
Which of these accurately describes a motherboard
a)
The central circuit board of a computer/device
b)
The main storage device in a computer system
c)
The main machine that creates microprocessors for computers
d)
The first ever computer system
18.
Where is the bootstrap held?
a)
RAM
b)
ROM
c)
Cache
d)
Harddrive
19.
Which is a feature of the address bus
a)
Transfers addresses 
b)
Bi-Directional
c)
Carries control signals
d)
Transfers Data and Instructions
20.

Which of the following are peripherals?

a)

CPU

b)

Motherboard

c)

Mouse

d)

Cache

e)

Printer

21.

Which of the following are real registers?

a)

Main drive register

b)

Memory address register

c)

Current instruction register

d)

Accomodater

e)

Program counter

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