Australia’s largest independent digital media and entertainment company, destra, relies on a robust network for its day-to-day business. Using destra as a case study, this program begins with an overview of computer networks and then introduces issues involving architecture and infrastructure, processes and procedures, maintenance, security, and disaster recovery. An informative illustration of the technological requirements of an e-business leader. Original title: Networks. (27 minutes)

A network is two or more computers connected to each other. Networks allow data sharing among users. Connections may be via cables, phone lines, or wireless.

Network needs analysis is based on cost, security, and usability. Senior management decides on specific network composition and consults with engineers and staff. Using in-house workers generates expertise.

Network architecture refers to the design and structure of the network. Major components may include routers, firewalls, and intruder detection systems. In addition, networks need switching equipment, application servers, and storage.

The intranet is the internal or private network that connects staff to each other, and is also accessible to authorized clients. Email is also a vital component of networks.

Network infrastructure refers to the physical hardware and software used to interconnect computers and users. Hardware includes telephone lines, repeaters, and cabling, to name a few.

Network procedures refer to the good work practiced by staff and managers to insure the health and security of the network. Anti-viral procedures are vital to the network, as are passwords.

Overall security is enhanced by back-up procedures and off-site storage. Most network managers have a disaster recovery plan in place. Patch and software management is vital.