The Information Processing Cycle

Question 1

Keyboard shortcuts

Answer 1

F1 - opens up a help screen for the program you are working in

Esc- let’s you get out of options or cancel choices

Question 2

What do we mean by plug and play

Answer 2

A series of technologies where the operating system automatically detects and configures a device that has been plugged into the computer so that the device can be used immediately

Question 3

Advantages of wireless devices

Answer 3

Less clutter as there are no cables

You have a wider range of movement

Question 4

Disadvantage or limitations of wireless devices

Answer 4

They require batteries

They are slightly more expensive than wired devices

Can easily be removed so easily stolen

There can sometimes be inference with the wireless signal, causing the device to stop working temporarily

Question 5

How is a monitor measured

Answer 5

The size is measured diagonally in inches from one corner to the other

Question 6

Resolution

Answer 6

Refers to the number of pixels used to form the image

It is measured horizontally and vertically in pixels

Question 7

Storage medium

Answer 7

Actual physical material or objects on which we store the data and programs

Question 8

Storage devices

Answer 8

The computer hardware that read from and write to storage media

Question 9

Storage capacities

Answer 9

Kilobyte (KB) 1024 bytes - normal word document

Megabyte (MB) 1024 KB - programs, videos, music

Gigabyte (GB) 1024 MB - browse web, use social networks and check email for up to around 40 minutes per day. Ideal for lighter users

Terabyte (TB) 1024 GB - external hard drives

Question 10

Health concerns

Answer 10

Repetitive Strain Injury (RSI) - name given to injuries resulting from fast, repetitive work

Back pain
Headache
Carpal tunnel syndrome

Question 11

Prevent RSI

Answer 11

Built-in wrist rests
Curved keyboards

Question 12

Health tips for using computers

Answer 12

Use ergonomically designed equipment

Sit correctly

Ensure that lighting and ventilation are adequate

Occasionally turn your eyes away from the monitor

Take regular breaks

Question 13

Ergonomics

Answer 13

The study and design of the workplace for the comfort and safety of people in work environments

Question 14

Ways to practice green computing

Answer 14

Try to conserve power- switch devices off when not being used

Do not waste paper

Try to upgrade or donate old hardware

Buy energy efficient notebook computers instead of desktop computers

Check if you can refill and reuse ink and toner cartridges

Question 15

What should you consider when buying a storage device

Answer 15

1. Storage Capacity: How much stuff you can store.
2. Read and Write Speeds: How fast you can access or save stuff.
3. Reliability: How dependable your system is over time.
4. Function1: What you actually want to use your computer for.

Question 16

Examples of internal storage devices

Answer 16

Internal hard drive (HDD) - hard drive that resides inside the computer

Question 17

External hard drive

Answer 17

provides extra storage without needing to open up your computer

SD ( Secure Digital Card) -removable memory card

Question 18

Advantages of Solid state Drive (ssd)

Answer 18

• Mass storage devices like SSDs don’t have moving parts like HDDs
• SSDs store data using flash memory instead of magnetic platters.
• SSDs offer faster data access compared to HDDs.

Question 19

How do you sit behind your computer

Answer 19

1. Upper legs flat on chair
2. Lower legs at 90-degree angle at knees
3. Feet flat at 90-degree angle to lower legs
4. Back tilted slightly (100-135 degrees) from legs
5. Arms tucked close to sides
6. Relaxed shoulders and neck
7. Eyes comfortably viewing screen without strain

Question 20

What is green computing

Answer 20

Environmentally responsible and eco- friendly use of computers and their resources

Question 21

What is authentication

Answer 21

Process of verifying the identity of a person or device

Question 22

Example of authentication

Answer 22

Entering a username and password when you log in to a website

Question 23

Why is authentication important

Answer 23

Authentication ensures only authorized people can access computers, networks, and websites, keeping them secure.