Computers Youve probably known about computers your whole life. But computers have not really been around for very long. Computers started to become popular with big companies in the. 1960s. Computers didnt become widespread in homes and schools until the 1980s. HOW DO PEOPLE USE COMPUTERS? People use computers in many ways. Stores use computers to keep track of products and check you out at the cash register.
Banks use computers to send money all over the world. Computers help teachers keep track of lessons and grades. They help students do research and learn. Computers let you hook up to networks (many computers hooked together). They let you hook up to a worldwide network called the Internet. Scientists use computers to solve research problems. Engineers use computers to make cars, trucks, and airplanes. Architects use computers to design houses and other buildings. The police use computers to track down criminals. The military uses computers to make and read. coded messages.
Computers are not just desktops and laptops. Computers are everywhere around your home. There are tiny computers inside microwave ovens, television sets, and videocassette recorders (VCRs) or digital video disc (DVD) players. There are even tiny computers in cars to help them run better. HARDWARE AND SOFTWARE Computers need hardware and software in to work. Your desktop or laptop and all the inside are called hardware. The central Processing unit (CPU) makes the computer work. keyboard, mouse, printer, and monitor are pieces of computer hardware. Memory chips are hardware that stores information and instructions
. Information also gets stored on hard disk drive. The programs that run the computer are cal software. The computer operating system software that tells the computer how to run Applications or programs are software that I certain tasks. Word-processing programs, example, let you write school reports and letters.
HOW CAN COMPUTERS DO SO MUCH?
One reason that computers can do so much is that they have a special language that tells them what to do. Computer language has only two letters: zeros and ones. Computers can read these ones and zeros extremely quickly. Each zero or one is called a bit. Eight zeros and ones together are called a byte. Bits and bytes get stored in computer memory chips . Every year, computer engineers make chips. that can hold more bytes. The chips can hold more information. Programmers can write applications that can do more things.
This article was culled from the publications of Deen Communication Limited