DEFINITIONS
The Internet is a global network of computers of the world, large and very wide at all where any computer connected to each other from country to country around the world and contains a wide range of information, ranging from text, images, audio, video, and more.
Internet itself is derived from the word Interconnection Networking, which means the relationship of many computer networks with different types and kinds, using this type of communication such as telephone, salelit, and others.
FUNCTIONS OF THE INTERNET
Internet serves as an aspect of communication, information providers, and facilities for promosi.Internet can connect us with the various parties at various locations around the world.
Internet Also Has Some Weakness Among Others
· Information that is incorrect or not appropriate, thereby reducing its effectiveness
· Interaction on the intranet that may not be responsible
· Need special training for members in using the intranet
· Need experts to build and develop an intranet in an organization or company
· Can 'just happen' overload (full data) due to the delivery of messages between users who do not terkontril well.
Internet Also Has Some Advantages Between Other
Access to 2.4 hours.
Access to information on the Internet is not restricted by time, because with global scope, the virtual world is presented 'never sleep'
The speed.
When compared with traditional data sources, research via the Internet much faster, because it is real-time.
Convenience.
Researchers via the Internet does not have to deal with bureaucratic issues, such as permits from various agencies for data collection purposes, 'confidential' information, and the need to come personally to the agency concerned.
Relative cost.
Stay to download or print a file / script that match their needs.
Commonly abbreviated as Local Area Network LAN is a computer network whose network covers only a small area, such as campus computer networks, buildings, offices, in homes, schools or smaller.
LAN typically serves to divide the life of a device or resources so that resources can be shared - equally by LAN users.
Advantages:
1. Data rates can be more stable because the level of interference is smaller, if the wireless a lot of interference because rata2 freq freq used freely.
2. More difficult for the plow (as long as there are no branches ya hahaha)
3. Data transmission speeds higher than using the wireless, because the wire is made of copper now has reached gigabits and higher for this type of fiber optics.
Losses:
1. Ending point is determined, so there is no mobility
2. Has a max distance limitations.
3. Requires good protection from the bite of a rat or squashed let the cord is not damaged.
WAN is short for the term information technology in English: Wide Area Network is a computer network covering a large area as an example of a computer network between regions, cities or even countries, or can be defined as well as computer networks require routers and public communication channels.
Functionally, the WAN is not much different from the LAN, WAN computer role-connect computers, printers, and other devices as appropriate LAN.
Metropolitan Area Network, or abbreviated to MAN. A network in a city with high speed data transfer, which connects various locations such as campuses, offices, government, and so on. MAN network is a composite of several LANs. These range from MAN between 10 to 50 km