Computer Network and Internet

Computer network (the network) is a system that consists of computers that are designed to share resources (printers, CPU), communicate (email, instant messaging), and access to information (web browser)

Computer Networks Purposes is:

In order to achieve its goal, every part of a computer network to request and provide the service (service). The party requesting / receiving the service are called clients (client) and providing / sending service called servers (server). This design is referred to as client-server systems, and is used in almost all computer network applications.

Two computers each have a network card, then connected via a wired or wireless data transmission medium, and there is a network operating system software to form a simple computer network. If you want to create a computer network wider scope, it would require additional equipment such as Hub, Bridge, Switch, Router, Gateway as interconnection equipment.

Computer Network Concept:

In recent years, computer technology has grown very rapidly. Perkemabangan this rapid technological, associated with other technologies. Especially for the technology of this type of personal computer (PC) to a super computer continues to experience growth, thereby increasing the capacity and data processing. Merger between computers and communication technology affect all the forms of organization of computer systems. Single computer model that serves the entire computational tasks of an organization has been replaced by a collection of computers and a large number of separate but interrelated still in performing their duties. This system is referred to as a network computer (Computer Network).
Computer networks can be defined as a set of interconnected computers. Two computers are said to form a network where they can exchange information. In other words, the computer network is a group of autonomous computers interconnected with each other using a communication protocol through the medium of communication so that they can share information, programs, use of shared hardware such as printers, hard drive and so on. In addition, a computer network can be defined as a system that consists of computers that are designed to share resources (printers, CPU), communicate (email, instant messaging), and access to information (web browser). In order to achieve its goal, every part of a computer network to request and provide the service (service). The party requesting / receiving the service are called clients (client) and providing / sending service called servers (server). This design is referred to as client-server systems, and is used in almost all computer network applications.
Two computers each have a network card, then connected via a wired or wireless data transmission medium, and there is a network operating system software to form a simple computer network. If you want to create a computer network wider scope, it would require additional equipment such as Hub, Bridge, Switch, Router, Gateway as interconnection equipment. Set a communication terminal located in various locations which consist of several interconnected computers. 

Network Internet:

The Internet is a computer network that could be categorized as WAN, connecting millions of computers around the world, without borders, where everyone who has a computer can join the network by simply connecting to the internet service provider (Internet service provider / ISP)
 Internet can be translated as the international networking (international network), for connecting computers internationally, or as internetworking (tissue between networks) for connecting millions of networks around the world. Internet, a network that is so complex but it was amazing.

Internet network logically divided into multiple domains, which by the standards of IPv4 (Internet Protocol version 4) is identified by IP number or 4 32-bit binary numbers separated by dots (eg 192.168.10.25). Standard domain types include:

. com = commercial organizations
. edu = educational institutions in the United
. ac = academic institutions
. gov = government institutions
. mil = military organizations
. net = network access provider
. org = non-profit organizations

Beside the domain that is also shared by the state, for example:

. au = Australia
. ca = Canada
. id = Indonesia
. jp = Japan
. my = Malaysia
. sw = Sweden
. th = Thailand