Computer viruses are always present somewhere in a disk or computer system ready to strike. If an over powering, destructive virus enters a network system, all data can be severely damaged or lost completely. That's why there is back-up drives to store existing data that is written onto the disk each day. Anti virus programs are there to alert the user and wipe the virus off the system before it does any destruction to the data stored on the network. As far as practicality and mobility is concerned, the laptop has been around for quite a long time. A laptop computer is a portable computer, about the size of a brief case. This is a good feature to save time and money. Laptops allow you to connect to fileservers or mini systems after you travel around with them. Once you are at your destination, you can give another system a "unit to unit" data exchange. This means you connect the laptops serial port to the other system's port and transfer data without external data. Diskettes are also capable of holding small quantities of information that can be used for transferring. In this day and age every computer has a hard disk which contains the programs and applications that are used in the business industry. Programs and Applications Used in Business: Many computer applications can make a computer do wonderful things for you. Most of you have heard of programs such as Wordperfect, Lotus, Freelance, etc. that are productive in helping the user perform functions that save time. In businesses, word processing is always included on a system. Different programming companies supply many programs that are quite helpful for the user. Wordperfect is probably the best designed word processor on the market so far. This program is easy for the user to learn, it contains a spell and punctuation check, it contains pre designed graphic arts, a thesaurus, and runs efficiently on a 386 machine that is basically not fast enough for modern applications today.
