Wednesday, 25 June 2014

ICT Section 30

Section 30 24.6.14

Today we were starting the first Area 3 lesson - Basic Concept
We want to connect to server? ( we want to share program, data..)
- connection with two computer and another devices( computer network)
* When two or more network are link or connect and are able to communication with one another using suitable hardware and software called INTERNERTWORK.

LAN ( Local Area Network)
- small environment
- limited area

MAN
- large physical area
- long distance
-sharing regional resources

WAN ( Wide Area Network)

A wide area network (WAN) is a network that covers a broad area (i.e., any telecommunications network that links across metropolitan, regional, national or international boundaries) using leased telecommunication lines.

Fiber Optic

An optical fiber (or optical fibre) is a flexible, transparent fiber made of extruded glass (silica) or plastic, slightly thicker than a human hair. It can function as a waveguide, or “light pipe”, to transmit light between the two ends of the fiber.

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