Fetch-Decode-Execute #2

Fetch-Decode-Execute #2

The address bus and addressability

Multiple Select

In this lesson you are going to learn how to ... ?

• Explain the relationship between the width of the address bus and addressability of main memory

• Calculate the number of addressable memory locations

• Calculate the size of main memory

• Find out the width of the address bus

Multiple Select

What is stored in the memory locations of main memory?

• Instructions

• Data

• Memory addresses

• Instruction set

Multiple Choice

The main sequence of the processor's cycle is ....

• Fetch-decode-execute

• Fetch-execute-decode

• Execute-decode-fetch

• Decode-execute-fetch

Multiple Select

The three main components of the CPU are ...

• Control Unit

• Arithmetic Logic Unit

• Registers

• RAM

Multiple Select

Processor performance is dependent on ...

• Clock speed

• Number of cores

• Pipelining

• Size and speed of cache memory

Multiple Choice

Pipelining improves processor performance by ...

• overlapping parts of the fetch-execute cycle for multiple instructions

• seperating out the stages of the fetch-execute cycle

• using fewer instructions

• using virtual memory

Multiple Choice

Every memory location in RAM has ...

• a unique address

• unique contents

• unique instruction

• a unique name

Multiple Choice

In a computer, the idea that every program instruction and piece of data stored in RAM can be individually accessed is known as ....

• addressability

• stored-program concept

• fetch-execute cycle

• word size

Multiple Select

Three types of bus in a computer are ...

• data bus

• address bus

• control bus

• instruction bus

Multiple Choice

Which bus is this?

Carries signals that control the CPU components – for example , to indicate a memory 'read' operation

• control

• address

• data

Multiple Choice

Which bus is this?

Carries a binary 'word' from RAM to the CPU – for example a program instruction

• control

• address

• data

Multiple Choice

Which bus is this?

Carries the address of a memory location – for example the address of an instruction being fetched from memory

• control

• address

• data

Multiple Choice

Which bus or buses are uni-directional?

• address bus

• data bus

• control bus

Multiple Select

Which bus or buses are bi-directional?

• address bus

• data bus

• control bus

Multiple Choice

What is dependent on the 'width' of the address bus?

• The number of addressable memory locations

• The storage space of each memory location

• The amount of data that can be transferred in one machine cycle

• The total storage space of memory

Multiple Choice

How much memory is addressable with a 32-bit address bus?

• 4 GiB

• 4 MiB

• 4 Kib

• 4 Tib

Multiple Choice

fHow wide is the address bus if there is 16 MiB of addressable memory available?

• 24 bits

• 16 bits

• 20 bits

• 28 bits

Multiple Choice

Random Access Memory (RAM) is an example of .....

• Primary storage

• Secondary storage

• Immediate access storage

• Backup storage

Multiple Choice

The registers in the CPU are an example of .....

• Primary storage

• Secondary storage

• Immediate access storage

• Backup storage

Multiple Choice

A solid-state drive (SSD) an example of .....

• Primary storage

• Secondary storage

• Immediate access storage

• Backup storage

Multiple Select

Choose all the examples of secondary storage devices ..

• RAM

• Solid-state drive

• Hard disk drive

• Cache

• DVD-ROM

Multiple Select

In this lesson I have learned to ...

• Explain the relationship between the width of the address bus and the number of memory locations that can be addressed

• Calculate the number of addressable memory locations provided by an address bus of a specified width

Open Ended

Thinking Hard

Prioritise the knowledge you have gained today from most to least important.

(press Shift+Enter to take a new line ...)

Poll

How much of this lesson have you understood?

• None of it

• Some of it

• Most of it

• All of it