Summer term exam

Question 1

What is a Computer system made up of?

Answer 1

Input, Output and storage devices

Question 2

What are input devices used for?

Answer 2

Input devices are used to input data to a compuuter system.

Question 3

What are output devices used for?

Answer 3

Output devices are used to display the data that has been entered or display any data. This can be a hard copy or on a screen or listening to sound

Question 4

What are the common internal components of a computer system?

Answer 4

RAM, ROM, CPU, Motherboard, Hard Drive and BIOS

Question 5

What are the components of a CPU? Arithmetic Logic Unit

Answer 5

Arithmetic logic unit: It performs arithmetic and logical operations and it is where calculations are done and decisions are made

Question 6

What are the components of a CPU? Control Unit

Answer 6

Control unit: The control unit provides several functions and instructions. It issues control signals that control and it moves around the system

Question 7

What are the components of a CPU? Registers

Answer 7

Registers: Registers are small amounts of high-speed memory contained within the CPU. They are used by the processor to store small amounts of data that are needed during processing

Question 8

What are the components of a CPU? Accumulator

Answer 8

Accumulator: An accymulator is a type of register included in a CPU. It acts as a temporary storage location which holds an intermediate value in mathematical and logical calculations. Intermediate results of an operation are progressively written to the accumulator, overwriting the previous value. For example, in the operation ‘3+4+5’ the accumulator would hold the value 3, then 7, then 12.

Question 9

What does the system software manage?

Answer 9

The system software manages the hardware and software in a computer system.

Question 10

What are the main functions of the operating system?

Answer 10

The main functions of the operating system are file management, user management, user interface, memory management and device management.

Question 11

What does the Operating System provide?

Answer 11

The Operating System provides security - usernames and passwords, firewalls

Question 12

What does a Utility Software do?

Answer 12

It ensures computers are running properly

Question 13

What are some examples of Utility Software?

Answer 13

Anti-virus, disk defragmentation

Question 14

What does the application software enable?

Answer 14

It enables users to complete day to day tasks

Question 15

What are some examples of Application Software?

Answer 15

Word Processing, Presentation Software, Desktop Publishing Software and Web Browsers are examples of Application Software

Question 16

Where and what is a primary storage?

Answer 16

Primary Storage is inside a computer and is directly accessible by the CPU and RAM and ROM are examples of Primary Storage

Question 17

True or False? RAM is non-volatile and is not lost when the computer is turned off?

Answer 17

False, RAM is volitile and gets erased when the computer is turned off.

Question 18

True or False? ROM is non-volatile and is not lost when the computer is turned off?

Answer 18

True

Question 19

What is the CPUs own storage?

Answer 19

Cache Memory

Question 20

What is a long term storage?

Answer 20

Secondary storage

Question 21

What is on computers that affects computer users?

Answer 21

There are a number of laws which directly affect computer users

Question 22

What does binary consist of?

Answer 22

Binary consists of only two numbers 0 and 1

Question 23

How many basic logic gates are their?

Answer 23

There are three basic logic gates, AND, OR and NOT. Every logic circuit can be made up from these three logic gates.

Question 24

How will an AND gate produce an output and how will an OR gate produce an output?

Answer 24

An AND gate will only produce an output of 1 if both inputs are 1. OR gate will produce an output of 1 if one of the inputs is 1

Question 25

What is the NOT gate known for?

Answer 25

A NOT gate is also known as the inverted gate. The output will always be the opposite of the input. E.g if 1 is the input, the output will be 0

Question 26

What is the Binary calculation table?

Answer 26

The binary calculation table is 128 64 32 16 8 4 2 1

Question 27

What do you do when adding binary?

Answer 27

When adding binary 0+0 = 0, 0+1 = 1, 1+1 = 0 carry 1, and 1+1+1 = 1 carry 1.

Question 28

How is computer memory and sorage measured?

Answer 28

Computer memory and storage are measured in different units. Bit = 1 digit, Nibble = 4 bits, Byte = 8 bits, 1024 bytes = 1 Kilobyte, 1024 Kilobytes = 1 Megabyte, 1024 Megabytes = 1 Gigabyte, 1024 Gigabytes = 1 Terabyte.

Question 29

What is a truth table?

Answer 29

The output of logic gates can be shown through truth tables. The truth table shows what the output will be, based on the input.

Question 30

How is data in computer systems represented?

Answer 30

Data in computer systems is represented in binary form. Programmers use Hexadecimals (Base 16)

Question 31

What are examples of Legislation?

Answer 31

(Copyright, designs and patents ACT), (Computer Misuse ACT) and (Data Protection ACT)

Question 32

What is Copyright, designs and patents ACT?

Answer 32

It protects original work from being used without permission

Question 33

What is Computer Misuse ACT?

Answer 33

It stops unauatharised access to computer systems, prevents hacking and distributing viruses

Question 34

What is Data Protection ACT?

Answer 34

It Protects personal data for a living human being, it makes sure you have secure, accurate and nessesary data, it makes sure other people don’t keep your data if you had left the organization e.g. personal data - name, adress and geder ect.