Earlier computers didn't have an operating system and if you have experience with the computers of the early eighties, you'll remember that most to them didn't even have a hard drive! These old computers booted an MS-DOS type operating system from drivers stored onto a floppy disk, and in order to use a program, users would remove the boot floppy and then insert a new floppy that contained the program. Assuming that a computer is set up to operate on voice command - sure! Voice command software allows users to tell a computer what to do and the computer responds by fulfilling the user's commands. Although it's pretty new and still under development, voice directed technology has already infiltrated consumer service related systems. It attacks computers via distribution - often unknowingly - through email attachments, software downloads, and even some types of advanced web scripting. Viruses that destroy data are known as Trojan horses, viruses that explode their attacks are called bombs, and viruses that duplicate themselves are called worms. From the small local corner store to the largest hospital, computers are in every gas station, grocery store, bank, restaurant, beauty shop, and doctor's office around. From a consumer's point of view - you may not think that's much to worry about. But along with computers, we've also been infiltrated with a little thing called "self-service. Menu bar - this part of a program displays menu items and menu options. Some of the most common parts of a menu bar grants access to File commands, Open commands, Save commands, and Print commands. An example of an error in this part of an interface would be if an option was missing or grayed out (lighter in color). Our definition of "the best" is the fastest and the biggest, but even that leaves the computer newbie confused. Here's a quick rundown of what the computer novice should do and why. 1. Buy a computer that includes basic peripherals. Every computer can be broken down into four major components: CPU unit, monitor, keyboard, and mouse.