Computers (general History) Essay

This essay has a total of 924 words and 4 pages.

Computers (general History)

In this report, you'll about the components and history regarding the computer. 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 only memory.
Scanners are flatbed devises that you can look at pictures at more closely. Speakers allow
us to here the sounds coming from the computer. The keyboard is an input unit that
produces data bits.

Inside the computer you have processors (CPU), Ram, semiconductor, hard disk, the bus and
the operating system. Central Processing Units (CPU) a microprocessor that is, a single
piece of silicon containing millions of electrical components. It's input device or memory
is communicated through the bus to the CPU, which is the part of the computer that
translates commands and runs programs. Ram is the physical memory of a computer. You can
use it to run programs that require memory to load. The semiconductor is the silicone
object used for computer inner circuit components. The Bus it the flat cable of numerous
wires that joins in with components in the computer. For Example: connection to the CPU to
the hard disk. The hard disk is where the machine stores data and programs. When a
computer is turned on it searches it memory it is called the operating system. Windows 98
and Mac are forms of operating system.

The abacus was probably the first computer and it was the birth of it. It was a wooden
rack with parallel wires on which beads are strung. All ordinary math operation could be
done on it. Blaise Pascal invented the first mechanical computer in 1642 at the 19. It was
a calculator that you fed numbers by turning dials. Pascal built 50 copies of his machine.
Only the wealthy owned them. A German man, Gottfried Leibniz added a gearing system to
enable multiplication on Pascal's computer. Charles Babbage of Great Britain invented the
first desktop calculator. It used the same principles of the modern day computer. He
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