Communications & Networking (Network (A Stand-alone computer is when…
Communications & Networking
A Stand-alone computer is when it is used on its own without requiring a connection to a LAN or WAN
Client-Server is hardware or software that accesses a service made available by a server
peer-to-peer netowrks are when two or more PCs are connected and share resources without going through a separate server computer
A LAN (Local area netowork) is network that connects computers and other devices in a reasonably small area
A Wide area network is a computer network in which the computers connected may be far apart, generally having a radius of more than 1 km.
IP adressing:a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network
MAC addressing:a unique identifier for an Ethernet or network adapter over a network
Packet:This is a small amount of computer data sent over a network
Protocols: The official procedure or system of rules
The Requirement for security in networks
User access Levels
Most passwords have to have 8 characters, at least one number or symbol and a capital letter
A modem and router are needed to connect your computer to the internet
Common File standards
Compressing files means that you lose the pointless and redundant information. Keeping only what you need.
Lossless and lossy compression are terms that describe whether or not, in the compression of a file, all original data can be recovered when the file is uncompressed. With lossless compression, every single bit of data that was originally in the file remains after the file is uncompressed.
Hypertext Markup Language, a standardized system for tagging text files to achieve font, colour, graphic, and hyperlink effects on World Wide Web pages.