A compiler is a computer program that accepts programs written in high level language and produces an object program.

COmputer Network Goals:-

This is list of common commands which can be used from command prompt or from run screen.You can just do:-

=>Click On Start menu

=>Click On Run

Type or paste any of command from list to test it or use it.Be sure to read description of command before using it and you will be runing command at your own risk :-) i will not there for fixing it if you got issues from these commands .However these are safe commands but still you must be able enough to know that what ar you doing.

IPCONFIG: This command is used to get information about your system’s network setup and configuration, or broadband internet connection, and details. The IPCONFIG command used by itself provides you with a concise list of the network interfaces on your system and their IP addresses.

Windows networking is essential all ties and you must be aware about basic commands used in networking.These are helpful for troubleshooting your system many times and keeping your computer safe and fast for usage. I will introduce many utilities in this book about windows and DOS system where system administrator can use these for managing system performance and configuraing system.

Many utility commands exist in window for administration purpose.You can see these commands in your windows folder but be always confident before using any of command given here.

This is a commonly-used network protocol. The X.25 protocol allows computers on different public networks (such as CompuServe, Tymnet, or a TCP/IP network) to communicate through an intermediary computer at the network layer level. X.25's protocols correspond closely to the data-link and physical-layer protocols defined in the Open Systems Interconnection (OSI) communication model.

Token-passing networks move a small frame, called a token, around the network. Possession of the token grants the right to transmit. If a node receiving the token has no information to send, it passes the token to the next end station. Each station can hold the token for a maximum period of time.

A network can consist of two computers connected together on a desk or it can consist of many Local Area Networks (LANs) connected together to form a Wide Area Network (WAN) across a continent.

Data Communications

Data Communications is the transfer of data or information between a source and a receiver.The purpose of Data Communications is to provide the rules and regulations that allow computers with different disk operating systems, languages, cabling and locations to share resources. The rules and regulations are called protocols and standards in Data Communications.