Networks

A network is formed when a group of computers are connected together. Computers in a Local Area Network (LAN) are fairly close together, generally within one building or a site. Computers can be connected together using cabling or using radio transmitters to provide a wireless LAN.

Share and exchange information easily. Workgroups –Groups sending data to each other –Work collaboratively –Documents edited by multiple users

Shared Databases –Centralised Databases made possible with networks –Central server has data –Remote Access through terminals or other computers

Distributed systems –A system is split up into different parts –Low end computers running each part –Problems divided –No single point of failure - Resources efficiently located (e.g. localised payroll)

Communications –Sharing data – s –VOIP software –Video Conferencing –Social networking

Device Sharing –Printers –Servers – Media, , File –Routers – Access to internet –Optical Drives –Backup systems

Security –Auditing –Limiting user access –User profiles

Expertise –Highly technical field setting up a network –Expensive to hire and train right staff –Alternative Options SAAS PAAS IAAS

Security –Unauthorised access –Viruses can spread quickly round a network –Password maintenance

Wiring –Expensive to buy and install. –Ergonomics of the infrastructure difficult to set up –Updating hardware