A computer is a devise that processes, organize, and calculate, displays information. It can communicate with other computers all over the world. The most powerful computer can perform 10s of billion of calculations per second. People use computers for business, track inventories, and use bar codes, personal home use and other things. Computers can produce information, numbers, images, sounds and movies. Embedded computers control devices such as remote controls.
Lets talk about the essential parts of the computer. First you have your outside units like your printer, monitors, modem, floppy disk drive, CD ROM drive, scanner, speakers and keyboard. These things are called peripherals. Printers come in inkjet, laser and thermal. Lasers are much faster than inkjets. The monitor is the television like unit where you observe text and images. Modems permit us to connect to the Internet, which is a global communication network. Modems come in many different speeds. Some are 14.4k, 56k these uses a phone line, cable modem (in only large cities, an internet setup that uses a cable line) and many more. Floppy disk drives are drives where you insert a disk to save progress or install programs from .CD ROMs are compact disk that can read
Speakers allow us to here the sounds coming from the computer. In 1947 ENIAC was moved from the University of Pennsylvania to its permanent home at the Aberdeen Proving Ground in Maryland. It was a calculator that you fed numbers by turning dials. It used the same principles of the modern day computer. Blaise Pascal invented the first mechanical computer in 1642 at the 19. Scanners are flatbed devises that you can look at pictures at more closely. For Example: connection to the CPU to the hard disk. The advances of technology enable us to excel in our technical needs. ENIAC contained 20 storage registers called accumulators that stored intermediate and final calculations. Each accumulator held a ten-digit number. They were trying to make the computer more affordable. ENIAC was produced and was made by John W. During the outbreak of WWII, it produced a need for computers in 1942. The issue was about the patenability.