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Worksheets9.1 Homework 1
Total questions: 38
Worksheet time: 25mins
In binary, what is 1 + 1?
01
10
2
11
When you shift a binary number to the left you will...
Multiply
Divide
When you shift a binary number to the right you...
Multiply
Divide
Moving one place right will
Multiply numbers by 4
Divide numbers by 4
Multiply numbers by 2
Divide numbers by 2
Moving one place left will
Multiply numbers by 4
Divide numbers by 4
Multiply numbers by 2
Divide numbers by 2
A two place right shift on 01001110
00010011
00000010
00100100
00010010
When doing binary division using right shifts the answers are:
Rounded up
Rounded down
What binary digit do you add when doing any logical shift, to use as a placeholder?
0
1
Complete a 2 place right shift on the binary number:
0 1 1 0 1 0 0 0
1 1 1 0 1 0 0 1
0 0 0 1 1 0 1 0
0 1 1 0 1 0 0 0
1 0 1 0 0 0 0 0
Complete a 1 place right shift on the binary number:
0 0 0 0 1 1 0 0
(a)
Is the object in the image....
An Embedded System?
General Purpose System?
Music System?
Gaming System?
Which is a disadvantage of an embedded system?
As it is written for specific hardware it often uses low energy consumption.
Smaller in size.
Difficult to program and requires specialist knowledge.
Low cost.
True or False, Embedded Systems use Microprocessors to control specific functions relating to the device they are installed on?
True
False
Which of the following is not an example of an embedded system?
Smart refrigerator
Airfryer
Desktop computer
Microwave
True or False: Embedded systems are always connected to the internet.
True
False
Which component is responsible for storing non-volatile data in an embedded system?
RAM (Random Access Memory)
CPU (Central Processing Unit)
Flash Memory
Cache Memory
There are four main differentiating factors between an embedded system and a typical workstation or server. They are:
Purpose...
...must be specific.
Design...
...is very simple.
Cost...
...is cheap.
Human involvement...
...should be very little.
Solid State / Flash Storage
Magnetic Storage
Optical Storage
Solid State / Flash Storage
Typically has the largest storage capacity and is the cheapest per GB.
Magnetic Storage
Solid Sate / Flash Storage
Optical Storage
Which type of storage is read by a laser?
Magnetic Storage
Optical Storage
Solid State / Flash Storage
How do magnetic storage devices store data?
Using a laser
Using memory cells
By grouping magnets together
By using positive and negative charges
Label these storage devices.
CD
SD Card
Cassette Tape
Hard Disk Drive
Label these storage devices
Blu-ray Disc
Solid State Drive
USB Flash Drive
Floppy Disk
What is the definition of memory in computer science?
To store data and instructions currently being used
Which of these is a type of memory?
Which of these is not a type of memory?
Cache
RAM
Virtual Memory
Hard Drive
Why might we use Virtual Memory?
When the RAM is full, instructions can be stored here
Which of these best describes the purpose of the RAM?
To store the all software on the computer system.
To provide long-term storage for files and documents.
Main memory for currently used data and instructions.
To perform calculations and execute instructions.
Label this computer system diagram.
Storage
Input
Output
Process
Memory
Which type of memory is in close proximity to the CPU, and therefore the fastest to access?
RAM
ROM
Virtual Memory
Cache
Which type of memory is in furthest from the CPU, and therefore the slowest to access?
RAM
ROM
Virtual Memory
Cache
