Exam Flashcards
What does a firewall do?
Filters information
What does a network interface card do?
Connects to a network
Fibre optic cable is?
Contains glass fibre
What does a system unit do?
Protects data
System unit contains what?
Supply unit, memory, processor
What is a motherboard?
Main circuit board
What does a CPU do?
Interprets basic instructions
Different processors are?
Multi, dual, quad
What is 8 bits converts to?
Byte
What is a system clock?
Times operations measured in gigahertz
What is memory?
Stores instructions waiting to be executed
What does memory hold?
Operating systems and data
Primary storage?
Volatile, temporary, ram
Secondary storage?
Nonvolatile, permanent, rom
Adapter purpose?
Connects to peripherals and enhances functions
Port?
Peripherals attaches to
What is a server?
One or more computers can join
What is peer to peer?
Less than 10 computers can join
What is a bus?
Consists of central cabling
What does a router do?
Forwards data
What does a switch do?
Speeds everything up
How does media transmit?
Optic fibre
What is malware?
Designed to damage a computer
Advantage of ecommerce?
Search large catalogues
What is a privacy act?
Legal rights to privacy
What is a vlookup?
Searches values in columns
What does a power supply do?
Converts wall outlet ac to dc power
What is Internet?
Worldwide connection of networks
Examples of multimedia?
Animation and videos
What is ecommerce?
Business over networks such as emails
What is system development?
Components that interacts and achieve common goals
What are compositional rules?
Opposition and size
Rule of thirds?
Aligning subjects with guide lines
What order is reading gravity?
Right, bottom left, right
What is file format?
The organisation of files
Explain the differences in JPG, TIF, PNG
JPG is lossless and TIF, PNG are lossless but best quality
Examples of file format
.doc, .htm
Audio/music files?
MP3 and WAV
Video files?
MPEG
What does HTML stand for?
Hypertext markup language
CSS stands for?
Cascading style sheet
What is cloud computing?
Network of computers away from user
Examples of output devices?
Headphones, speaker
Examples of input devices?
Mouse and keyboard
Peripheral devices?
Mouse and keyboard
Operating systems?
Windows, Mac, Linux
Networks?
WAN, MAN, LAN
LAN does?
Connects in limited area
WLAN has?
No wires
Advantages of network?
Speed and security
Disadvantages of network?
The cabling