Ict Form4 Spm

Topics: Internet, Computer network, Blog Pages: 10 (2921 words) Published: August 19, 2013
1. Introduction
2. Mobile computing
3.1. Definition
3.2. Specification , services , and frequencies of mobile computing 3. Internet technology and services
4.3. VolP
4.4. BLOG
4. Types of network
5.5. PAN
5.6. VPN
5.7. WLAN
5.8. WIMAX
5. Conclusion
6. Reference

A computer network, often simply referred to as a network, is a collection of computers and devices interconnected by communications channels that facilitate communications among users and allows users to share resources. Networks may be classified according to a wide variety of characteristics. A computer network allows sharing of resources and information among interconnected devices. Computer networking also is an engineering discipline concerned with communication between computer system or device . Networking , routers , routing protocols , and networking over the public internet have their specification defined in document called RFC’s . computer networking are sometime considered as a sub-discipline of telecommunication ,computer science, or computer engineering .computer network rely heavily upon the theoretical and practical application of these scientific and engineering disciplines .computer network is a group of interconnected computers . Network may be classified according to a wide variety of characteristic, a computer network is any set of computers or devices connected to each other with the ability to exchange data .

All network are interconnected to allow a communication with a variety of different kinds of media .computer network can be perceived as a two way process in which there is an exchange and progression of thoughts . computer communication is a pre-reviewed international journal that publishes high-quality specific articals with a special attention to the evolution of the internet architecture protocols , services and applications .

2.Mobile Computing
Mobile computing is a generic term describing one's ability to use technology while moving, as opposed to portable computers, which are only practical for use while deployed in a stationary configuration.

Mobile computing implies wireless transmission , but wireless transmission does not necessary imply mobile computing . fixed wireless application use satellite , radio system and lasers to transmit between permanent object such as building and towers In other words mobile computing also taking computer and all necessary files and software out into the field .

2.2-Specification , services , and frequencies of mobile computing


a Smartphone is a mobile phone that offer more advance computing ability and connectivity and contemporary basic ‘future phone’ . smart phone may be thought of as handheld computer integrated within a mobile telephone , but they are able to run application based on platform such as java ME or BREW a smartphone allow user to install and run more advance application base on a specific platform . Smartphone run complete system software providing a platform for application developer – smartphone hardware and software is compiled at the smartphone genome project .

in term of service , most smartphone support full feature email capabilities with the functionality of a complete personal organizer . other service might include an additional interface such as miniature QWERTY keyboard , atouch screen or D-pad , a built-in camera , contact management accelerometer , built-in navigation hardware and software , the ability to read business document in variety format , media software for playing music .browsing photos and video clip , internet browser or just secure access to company mail . such as is provide by a blackberry


3.Internet technology and services
3.1-Voice over internet protocol (VoIP)
Voice over Internet...

References: * http://en.wikipedia.org/wiki/Computer_network#Virtual_private_network
* http://en.wikipedia.org/
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