The Information Processing Cycle Flashcards

1
Q

Keyboard shortcuts

A

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

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

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2
Q

What do we mean by plug and play

A

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

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3
Q

Advantages of wireless devices

A

Less clutter as there are no cables

You have a wider range of movement

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4
Q

Disadvantage or limitations of wireless devices

A

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

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5
Q

How is a monitor measured

A

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

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6
Q

Resolution

A

Refers to the number of pixels used to form the image

It is measured horizontally and vertically in pixels

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7
Q

Storage medium

A

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

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8
Q

Storage devices

A

The computer hardware that read from and write to storage media

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9
Q

Storage capacities

A

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

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10
Q

Health concerns

A

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

Back pain
Headache
Carpal tunnel syndrome

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11
Q

Prevent RSI

A

Built-in wrist rests
Curved keyboards

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12
Q

Health tips for using computers

A

Use ergonomically designed equipment

Sit correctly

Ensure that lighting and ventilation are adequate

Occasionally turn your eyes away from the monitor

Take regular breaks

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13
Q

Ergonomics

A

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

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14
Q

Ways to practice green computing

A

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

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15
Q

What should you consider when buying a storage device

A
  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.
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16
Q

Examples of internal storage devices

A

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

17
Q

External hard drive

A

provides extra storage without needing to open up your computer

SD ( Secure Digital Card) -removable memory card

18
Q

Advantages of Solid state Drive (ssd)

A
  • 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.
19
Q

How do you sit behind your computer

A
  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
20
Q

What is green computing

A

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

21
Q

What is authentication

A

Process of verifying the identity of a person or device

22
Q

Example of authentication

A

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

23
Q

Why is authentication important

A

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