IT Theory Part A

Question 1

What are the 4 types of user interfaces

Answer 1

Graphical user interface
Menu based interface
Command line
Adaptive interface

Question 2

3 Advantages of a graphical interface

Answer 2

Intuitive and easy to learn/ recognising icons
Increases efficiency as you can display multiple programs simultaneously
Easier to modify

Question 3

2 disadvantages of A GUI

Answer 3

Use a lot of memory and processing power
slower than a command line interface, can be irritating for an experienced user

Question 4

2 advantages of a CLI

Answer 4

Experienced users find it easier to complete tasks
requires less memory and processing power to run

Question 5

2 disadvantages of a CLI

Answer 5

Language of the commands may be a barrier
can’t access it on devices that use on screen keyboards

Question 6

Firewalls

Answer 6

prevent unauthorised access by monitoring and blocking traffic that is suspicious

Question 7

4 areas of emerging technology

Answer 7

Artificial intelligence
Biometrics
Robotics
Virtual Reality

Question 8

2 Advantages of biometrics

Answer 8

It is unique so it can’t be copied or passed on to someone else
It is part of a person’s physical appearance so you don’t have to carry your card

Question 9

5 factors of emerging technology

Answer 9

User Experience
implementation
Costs
Security
Compatibility

Question 10

Modern technology that is impacting businesses

Answer 10

Augmented reality
Internet of things
3D printing

Question 11

4 main storage devices

Answer 11

Hard Drive disk ( HDD)
Solid State Drive (SSD)
SD Cards
USB memory sticks

Question 12

Characteristics of a HDD

Answer 12

has large storage capacity
low cost per byte
Very reliable

Question 13

characteristics of a SSD

Answer 13

Reads data very fast
has a lower power consumption
Very reliable

Question 14

2 limitations of a SSD

Answer 14

More expensive than a HDD
Lower storage capacity

Question 15

2 Advantages of an open source

Answer 15

Bugs in the code are spotted and corrected quickly
on going support will be free as the user pay for it

Question 16

2 disadvantages of a open source

Answer 16

must be compatible with existing application software
may not be many features included which make it harder to perform specific tasks

Question 17

4 Peripheral input devices

Answer 17

Webcam
Sensor
Microphone
Scanner

Question 18

4 peripheral Output devices

Answer 18

Projector
Monitor
Plotter
Printer

Question 19

3 advantages of removable storage

Answer 19

provides data security as the devices come with encryption
Easy to use because most devices have plug and play feature
doesn’t require internet so you can access it anywhere

Question 20

2 Accessibility devices for blind people

Answer 20

Adapted Keyboard
Large Monitor

Question 21

2 Automatic processes

Answer 21

Biometric readers read finger prints or hand prints for personal identification
Optical Mark recognition automatically reads a form and inputs data

Question 22

Uses of application software

Answer 22

Productivity software
Graphics Software
Communications software

Question 23

factors to consider when choosing software

Answer 23

Ease of use
Reliability
Capability

Question 24

what is proprietary software

Answer 24

The source is privately owned by the company and user pay to buy or subscribe to it

Question 25

what is Open Source Software

Answer 25

source code is available to read and modify

Question 26

What are the Implications of File types

Answer 26

Compatibility - some file types only work with certain software
Quality- Different file types provide varying quality levels

Question 27

3 advantage of JPEG

Answer 27

-File size will be reduced
- it will download and upload the image or email faster
- image will be compressed

Question 28

2 Advantages of Proprietary Software

Answer 28

• comes with training facilities and support
• it has more features than an open source software

Question 29

2 disadvantages of Proprietary Software

Answer 29

• Company may be slow to update the software and fix bugs
• is generic so your not able to customize it

Question 30

utilities that help improve the performance of a PC

Answer 30

Registry cleaners remove old registry entries can help improve the performance
System profilers break down the system and decides whether the system needs upgrading