COMPUTER APPLICATIONS
Computer Application or Application Software is a computer program written in a programming language and is used to solve specific problems. TYPES OF COMPUTER APPLICATIONS
Computer networks or network is the coordination of communication within a particular system among central / central (server) and some of its members (clients).
While the network topology is the pattern of relationships between terminals in a computer network.
Star
Advantages:
a) The greatest reliability among other topological
b) Easy to be developed and high data security
c) Ease of access to other LAN networks.
Losses:
a. Heavy traffic can cause slow network
b. Network depends on the central terminal.
Ring
Advantages:
a) high data rate.
b) It can serve data-intensive traffic
c) There is no need hosts, relatively cheap
d) It can serve a variety of media sender.
e) Communication between terminals easy.
Losses:
a. Not conducive to delivery of voice, video, and data
b. Damage to the media sender may stop working all
network.
c. Addition or reduction of the terminal is very difficult.
Buses (multipoint)
Advantages:
a) The ability of high development (open-endedness)
b) Distance is not limited to LAN
c) The network reliability and high-speed transmission.
d) There is no central controller is required.
e) The number of terminals can be increased or decreased without disrupting the operation that has been running.
Losses:
a) If the level of traffic congestion is too high can occur (congestion)
b) Necessary to strengthen the signal repeater.
c) Operational LAN networks depend on each terminal.
WEB APPLICATIONS
It is part of the internet as a community computer network that provides HTTP services.
Thus, the technical definition of the world wide web is that all resources and all users on the intenet that use HTTP (Hypertext Transfer Protocol)
WWW is the most interesting applications in the Internet and applications such as email is very important and widely used. This application is sometimes called "The Killer Application" or "the world is at your fingertip" because we can get not just text and even pictures (images), and multimedia.
In this application many facilities that can be done such as:
• ordering or buying an item online
• register online
• achieving multimedia, etc..
Edict which was placed on the WWW called "HomePage" and every home has their own address. To be able to attract the attention of the user, so the homepage can be visited, then we must establish as interesting as possible and many have a clear intimation. In this case the field of art is necessary, so that the world of advertising and commerce, the better.
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