s: (LAN)& (WAN).Computer networks can be classified according to their geographical spread. A network confined to a building with microcomputer workstations distributed in different rooms is known as a local area network. (LAN). One specific type of (LAN) that can span 5 miles is known as a ring network. A computer network that distributes data nationally and internationally makes use of telephones and sometimes satellite links this spread of system is known as a wide area network. (WAN). Due to its inherent reliability the distributed network is generally deemed the way forward in ICT technological systems set-ups.Companies are incorporating more computers into their (LAN) networks to improve communications among knowledge workers and to enable their staff to better share their computing resources. This makes good business sense because these and other valuable information can be shared.Application software; the cost of a LAN-based word-processing program is far less then the cost for the program for an individual computer.Communication capabilities; A dedicated telephone or fax line can be a shared resource amongst its users.Links to mainframes; The mainframe becomes an accessible resource. It is easier to link the mainframe to a single LAN than to many individual computers.I/O devices; With a little planning, a single page printer, plotter, or scanner can support many users on the LAN with not much loss of office efficiency. In the normal office environment the LAN can support approximately 10 staff.Storage devices; Database on a LAN can be shared. The type of use possible is a shared CD-ROM based national telephone directory.Add-on boards. Add on boards can also be used by many within an organisation. Hardware such as fax modem boards.Conclusion: The purpose of this report is to give the reader an insight into the practical applications of information and communication technology within an organisation. ICT within an organisation h...