exam

Question 1

What are the types of computer systems we can find?

Answer 1

• Non portable computers (desktop, server)
• Portable computers (tablets, laptops, smartphones)

Question 2

How can users be categorized?

Answer 2

• Personal users (for viewing or sharing
  photos)
• SOHO users (for accounting and billing)
• Power users (from hardcore gamers to
  engineers)
• Mobile users (for playing games, reading
  books)

Question 3

What is the difference between inkjet and laser printers?

Answer 3

Laser printer = higher speeds and higher
quality

Inkjet printer = cheaper then a laser printer
but has a higher running
cost

Question 4

Why do we use computers?

Answer 4

Because of their efficiency, accuracy and reliability

Question 5

What types of printers can be found?

Answer 5

• Laser printers
• inkjet printers

Question 6

Why do we use computers communication wise?

Answer 6

It - virtually eliminates time and distance
- communicates and shares info globally
- saves on communication costs.

Question 7

Give 2 examples of an application.

Answer 7

• word processor
• spreadsheet

Question 8

Give 2 advantages of wired-and-wireless connection.

Answer 8

wired connections = provides cheaper
connections to the
internet

wireless connections = can have mobile to
the internet.

Question 9

List some storage devices that can be found most portable.

Answer 9

• hard drive
• external hard drive
• flash drive

Question 10

Define the term software.

Answer 10

the program and other operating systems used by a computer

Question 11

What types of output devices can be found?

Answer 11

• Monitor/display
• Speakers or headphones
• Printers
• Storage devices

Question 12

What should you look out for when buying a computer?

Answer 12

• the unit system (RAM or CPU)
• memory (RAM)
• hard disk drive (HDD)
• video card
• port
• monitor
• mouse and keyboard

Question 13

List between the types of computer crimes.

Answer 13

• phishing (tricking users into giving out personal info)
• pharming (automatically u redirects to another website)
• spoofing (an ‘important’ email)
• trojan (destructive program disguised as an important applications)

Question 14

List a communication device that allows you to make and receive phone calls.

Answer 14

• Fiber router

Question 15

What are some advantages of input devices? (keyboard, mouse and touchscreen)

Answer 15

Keyboard = fastest way to enter text

Mouse = its an easy-to-learn device

Touchscreen = its easy to use and serves as
both a mouse and keyboard

Question 16

How can one protect themselves from computer crimes like phishing?

Answer 16

• take precautions
• antivirus software

Question 17

What are some communications used digitally?

Answer 17

• emails
• contact list
• podcasts
• blogs

Question 18

What types of input devices can be found?

Answer 18

• Keyboard
• Mouse
• Touchscreen
• Digital camera

Question 19

What does the information processing cycle contain?

Answer 19

• Communication (fibre router)
• Input (mouse, keyboard)
• Processing (RAM or CPU)
• Output (screen, printer)
• Storage (flash drive)

Question 20

When working with long documents, what kind of shortcuts can be used to navigate through the document?

Answer 20

• bookmarks
• hyperlinks

Question 21

What devices can be used for motor-and-visually disabled users?

Answer 21

motor = track balls and joysticks

blind = braille keyboard