Flashcards in Transfer Of Data In Ict System Chap-17 Deck (26)
Protocol that controls communication over the Internet.
A private network within the organisation and restricted to one place.
A network that is available for outside users.
Language that web pages are written.
Hyper text meaning language(HTML)
World wide web ( WWW )
Connection of multimedia over the Internet.
A set of rules or standards
Means Internet is more secure
What is de facto standard
Hardware or software that has become standard because most people use it. Also it is more popular and more reliable .
What is de jure standard
Standard that is demanded by legal regulations.
What is VLE and its features
Virtual learning environment which allows students and teachers to communicate.
HTML script of a webpage
What is stand alone computers and one advantage?
A computer that can only access it's own files and peripherals.
Adv: the Internet work at constant speed and virus is not spread out.
Two main types of network organisation
Client server & peer-to-peer
Name 3 main topology
What is networked computer and one advantage
Data stored on network computers can be accessed by different network users.
Adv: hardware such as printer or scanner can be shared so saving money.
networks covers area like town or city and it is connected by cables Or satellites is called
What is HUB
Join computers in a network so they can share files and an Internet connection.
hardware devices that joins several wireless networks together.
What is bus topology and say one adv:
There is one main cable all computers are attached to and uses on small LAN's.
Cheap to install as requires very little cabling.
What is a ring topology and say one adv:
On a ring all computers are linked together. There is no main computer acting as a server.
Data travels on the cable in one direction only.
What is network switch
Switches creates a network where as routers connects networks.
What is a star topology and say one adv:
Computers are linked to server and is used on large LAN's
1)easier for technician to find the faults.
Characteristic of LAN
A LAN coves small geographical area
Peer to peer and one adv:
A simple network that provides shared resources to other computer and there is no main server.
Adv: much cheaper than client server.
Client server and one adv:
With client server the files will not be stored on the hard drive of each workstation instead it will be stored on a server. Also you have user account.
Adv: backup is easy to perform and there is no need to rely on users backing up their own files.