ICT Unit 3

Question 1

Multimedia

Answer 1

Definition:
Multimedia is media in different forms such as video or sound.
Software:
-Sound 
-Music
-Animation
Advantages and Disadvantages
A-Intersting way of presenting information
   -Engaging way for children to learn
D- Expensive to buy 
   -takes time to load large files

Question 2

Gateway

Answer 2

Definition:

joins two networks together

Question 3

Bridge

Answer 3

Definition:

Connects two LANs to together to form 1 large bridge

Question 4

Intranet

Answer 4

Definition:

Closed networks which is accessed by employees of an organisation

Question 5

Extranet

Answer 5

Definition:

Closed network, this can be accessed by customers

Question 6

Bitmap

Answer 6

Bitmap is an image made up of pixels

Question 7

Vector graphic

Answer 7

A Vector Graphic is a graphic expressed mathematically

Question 8

Benefits of using vector graphics over bitmap

Answer 8

• Faster to download
• File size
• can be enlarged with no loss of quality

Question 9

JPEG Disv and Adv

Answer 9

Adv- smaller file size

Disv- Doesn’t support transparency

Question 10

GIF Disv and Adv

Answer 10

Adv- Does support transparency

Disv- Can’t be edited

Question 11

3 functions of an operating system

Answer 11

-organises hard drive
-deals with error
Manages security

Question 12

Payroll

Answer 12

Timesheets each month- Payroll

Question 13

Master file and Transaction File

Answer 13

Master
Common - Payroll
F1- Name
F2- Address

Transaction
Common- Payroll
F1- Date
F2- Hours

Question 14

Bionics

Answer 14

Application of biology to design of robots

Question 15

Advs and Disvs of Robotics

Answer 15

Advs-
-can work for 24 hrs
-can work in dangerous places
Disvs-
-Cost of maintenance 
-unemployment due to jobs by robots

Question 16

Artificial Intelligence

Answer 16

A computer program that gives machines human like intelligence

Question 17

Regulation ACT 2000

Answer 17

• Regulates powers of public bodies

- If you have committed a crime then the police can look at your phone e.g messages, email

Question 18

Preventive measures

Answer 18

• Eye tests
• Foot rests
• Desks at right height

Question 19

Animation Techniques!!

Answer 19

Key Frame :
A Key frame moves an object from the star of the animation to the end. The in between frames are filled automatically by the computer.
3D Animation:
3D Animation makes the animation appear realistic and 3D is a complex animation because the Animator uses Layering Effects E.g Toy Story 3
Onion Skinning:
Onion skinning allowes you to see previous frames and this can help you plan the next frame, this makes you animation smoother
Claymation:
Clay motion moves the object frame by frame (small movements) and takes a photograph to make it appear as its moving, this creates an animation

Question 20

Bus Network

Answer 20

Adv- Cheap and easy to install

Disv - if the backbone breaks, the whole network is unavailable

Question 21

Star Network

Answer 21

Adv- If one cable breaks all of the other cables breaks, other cables will work
- Fast
Disv- Expensive