انگلیسی 1390

Internet technology refers to the electronic world of many different computer networks which allows for effective communication and research. Network is a collection of computers and devices connected by communication channels that facilitates communications among users and allows users to share resources with other users. It deals with the Internet, the intranet and the extranet. Internet technology has spread throughout the world within a short span of time. Network is a powerful tool that has brought the world together. These technologies together have enabled people to transfer information from one corner of the world to another within no time. This book has nineteen chapters that provide the basic concepts about networking elements like protocol, media, architecture, and various functions used in networking. OSI model for network communication, which is a conceptual blueprint of networking, is explained in detail. Protocols like NetBEUI, IPX/SPX, AppleTalk and TCP/IP are thoroughly explained along with network components like ethernet cards, modems, routers, switches, bridges, repeaters, gateways and hubs and their connection media. Various types of LAN and WAN maintenance equipments like digital voltmeter, time-domain reflectometer, advanced cable testers, protocol analyzers, network monitors, terminators, etc. are briefly described. LAN and WAN problems and their solutions are also explained. Internet explorer and outlook express are described in full detail. The book covers the networking fundamentals that are extremely useful to those who want to seek jobs in various IT companies as front and back office executives. The technicians, engineers and trainees, who are new to networking, can acquire applicable skills in network design and maintenance. The book will enable Internet users to solve their internet problems themselves