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CAT > Module 1 > Flashcards

Module 1 Flashcards

1
Q

Operating system

A
  • provide user interface
  • provide security
  • manage soft/hard ware
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2
Q

Software

A

Specific instructions given to a computer so that it performs its tasks

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3
Q

Graphical User Interface (GUI)

A

Allows the user to interact with the softwar and operating system

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4
Q

File

A

A collection of data or information stored on a computer under a single name.

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5
Q

Memory

A

Data or information or progress kept volatiley

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6
Q

Storage

A

Permanently storing data or information onto the computer or an external storage

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7
Q

Touch typing

A

Typing without looking at the keyboard

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8
Q

System Software

A

Controls, supports, and operates the the computer. This is software that the computer cannot function without

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9
Q

Application Software

Apps

A

This is software that adds to the mulit-purposeness of the computer, but the computer doesnt need them to operate

Spreadsheet, Word processor, Database, Web Browser, Office Suite

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10
Q

Dialog box

A

A small window that pops up on the screen that allows communication between the user and the computer, sometimes as a warning, notification, or messages.

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11
Q

Utilities

A

Programs that provide useful add-ons to the computer

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12
Q

Shortcuts

A

F1- Opens help tab
Esc- get out of options
PrtSc- takes a screenshot
Ctr S- Save
Windows key E- Explorer

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13
Q

Ports

A

Sockets to connect peripherals
Most common is USB
For extra USB ports you can get a USB hub

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14
Q

Plug-and-play

A

When you connect a peripheral and the OS automatically prepares to use it

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15
Q

Wireless devices

A

Use short radio wave transmissions(Bluetooth)

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16
Q

Advantages of wireless devices

A
  • No clutter around work space
  • Wide range of movement
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17
Q

Disadvantage to wireless devices

A
  • Connection is at a limited range
  • Usually more expensive
  • Susceptible to interference
  • Easy to steal
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18
Q

Monitor

A

Measured diagonally in inches

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19
Q

Resolution

A

Measured horizontally and vertically in pixels

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20
Q

Response time

A

How long it takes for a pixel to change from one colour to the next measured in milliseconds

low=fast

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21
Q

Connection of monitors

A

Used to only connect via VGA, now can connect HDMI, Thunderbolt, USB, DisplayPort

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21
Q

Inkjet

A
  • Spray dots of ink onto paper
  • Use ink cartridge
  • Slower
  • More expensive in the long run
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22
Q

Laser

A
  • Uses toner isntead of ink
  • Faster
  • Cheaper in the long run but more expensive to buy
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23
Q

Difference between storage medium and storage device

A

The actual physical object that the data is stored is called the storage medium, the storage device is what reads/writes to the storage media

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24
Q

Storage capacities

A
  • Kilobyte - 1024 bytes
  • megabyt- 1024 kilobytes
  • gigabyte - 1024 megabytes
  • terabyte -1024 gigabytes
25
Q

Hard drives

A

Stores data as magnetic patterns on the surface of a disk`

26
Q

RSI

A

Repetitive Strain Injury
Injury from doing an action too fast and often like typing
ergonomics

27
Q

How to avoid RSI

A
  • Have proper posture
  • Use ergonomics
  • Make sure there is proper air circulation
  • Adjust your chair so it is leveled with your desk
  • Adjust the lighting accordingly
  • Take breaks
28
Q

Green computing

A
  • Avoid wasting paper
  • Switch off devices that rent being used
  • Recycle finished materials like ink cartridges
  • Resell or reuse hardware isntead of throwing it away
28
Q

File Explorer

A

Help manage and group our files in a logical manner

29
Q

Planning a logical folder structure

A
  • Plan what you want it to look like
  • Think of the root folder then add subfolders
  • Refine each level
  • Choose meaningful names
30
Q

File names

A
  • Name given by user
  • Dot or fullstop
  • File Extension
31
Q

File extension

A

Indicates what kind of file it is and lets the OS know what program is needed to open that file

32
Q

Path

A

Is used to view the sequence that led to the file that is opened.
Each folder is seperated with a backslash.

33
Q

Types of file extensions

audio, video, office, program, portable document format, compressed, gra

A

Audio- mp3
Video- mp4
Office- docx
Program- exe, .com
Portable document fromat- pdf
compressed- zip, rar
graphics- jpeg, gif

34
Q

Two types of computer devices

A
  • General-purpose computer
  • Dedicated devices
35
Q

General-purpose computers

A
  • Always have an OS
  • Always multi-purposeful
  • Smartphones, laptops, desktop, servers
36
Q

Laptops, tablets, smartphones, notebooks

A
  • Designed to use little energy (battery powered)
  • Portable
  • Keyboard and monitor are bulit in
  • Can be expensive to upgrade
37
Q

Server

A

Provide resources for other computers in a network

38
Q

Dedicated devices

A

Only perform one specific task
* Music players
* ATM machines
* GPS
* Microwave

39
Q

ICT

A

Infromation Communication Technology
Any hardware or software that is needed to process and exchange data/information

40
Q

ICT System

A
  • When hardware, software, data, processing, people combine to communicate, collect, store, process, or retrieve data
  • You/the system collect data to have it processed’ stored/communicated immediately
  • Data can be sent for processing while its being collected/ retrieved from storage / communicated
  • Information is then displayed, stored, or communicated further
41
Q

Crimes using ICT

A
  • Piracy
  • Identity theft
  • Theft of data
  • Creation of malware
  • Spreading lies
42
Q

Integrated Software

A
  • Software that uses similar interface, shortcuts, dialog boxes, menus, etc and can usually share and communicate data with one another
43
Q

EULA

A

End User License Agreement

44
Q

Proprietary License

A

A license that prevents a user from changing or distributing software, it may only be used under certain conditions

45
Q

Single user license

A

Can only be installed once on one computer

46
Q

Site/Volume License

A

When a license is bougth to be installed into multiple computer within an organisation or company
Is cheaper than a single user on its own but when being installed into multple computers, its cheaper

47
Q

Freeware

A

Software that can be used and distributed for free wthout limitations

48
Q

Shareware

A
  • Software that can be used for a certain amount of time before it has to be paid for
  • The free version might have less features than the paid for version
  • Software will stop working once youve reached the period
49
Q

Open Source Software

OSS

A
  • Software that can be altered, distributed and modified but may not be sold
  • Linux
50
Q

Cons to OSS

A
  • No quality or workability guarentee
  • Downloads are very large
  • Is not widely used
  • Support and documentation is not easily accessible1
51
Q

Compressing files

A
  • Compressing a file/multiple files so they take up less space
  • Compressing a file is called zipping
  • Can decompress by unzipping
52
Q

Backing up

A

Making a copy of your files incase
* Your files get corrupted
* Your storage medium fails
* Your device gets stolen
* Your files get accidentally deleted

53
Q

Driver

A

Allows your computer to communiacate with hardware

54
Q

Pointing devices

A
  • Touch pad
  • Mouse
  • Pen input device/ Stylus
  • Touch screen
  • Trackball
55
Q

Sensors

A
  • Accelerometer- detects movement and changes screen orientation accordingly
  • Light sensor- adjusts the brightness of the screen according to your surroundings
  • Tempereature sensors- switches itself off when it is in dangerous temperatures
  • Electronic compass- shows what direction the device is pointed
56
Q

Character recognition

A
  • OMR(Optival mark recognition) - Computerised tests
  • MICR(Magnetic Ink Character Recognition) - Bank cheques that havee number imprinited with magnetic ink
  • OCR(Optical Character recognition)- Scans an image for characters that is recognised and cretates a text document of what it recognised
57
Q

Ripping

A

Using software to copy content from CDs and DVDs

58
Q

CD, DVD, Blueray

A
  • CD- 700MB
  • DVD- 8.5GB
  • Blueray- 50GB

optical drives- drives that use laser lights to r

59
Q

How ICT impacts our lives

A
  • Education:
  • Leisure:
  • Home office:
  • Communication:
60
Q

Advantages of networks

A
  • Fast and efficient communication
  • Sharing of hardware
  • Sharing of files
  • Flexible access
  • Leisure
  • Increased control and security

CAT (5 decks)

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