If a company has a network, their memory would range on the applications required to run the system productively. A one to three gigabyte hard drive would be most common for businesses. To keep these applications on the computer, you need a fair amount of RAM memory as well as hard disk space. An application developed in 1993, probably will be to powerful and run quite slow on a previous system that was 'top of the line' in 1991. That's why it is important for companies to understand that they must think years down the road before spending thousands of dollars on the technology of today.
Networks are everywhere in the world of business.
A network is a series of computers throughout the company which rely on one or two fileservers. Or it can be used in long distance communication through modem. An example would be that a company located in Calgary can call up its other branch in Toronto via modem, also able to up and download valuable files or records. Networks have their disadvantages also. Computer viruses are always present somewhere in a disk or computer system ready to strike.