css 10 about computer, Cheat Sheet of Computer science

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UNDERSTAND THE

HISTORY OF COMPUTER

AND ON COMPUTER

PROGRAMMING.

IDENTIFY THE

DIFFERENT COMPUTER

HARDWARE AND ITS

FUNCTIONS

1. IN YOUR OWN WORDS, WHAT IS

COMPUTER?

2. AS A LEARNER, WHAT ARE THE

BENEFITS THAT YOU CAN GET FROM

COMPUTERS?

COMPUTER

• It was the math procedure of Abacus which was originated in Egypt and popularized in China that prompted the improvement of Computers. While math device is an old ascertaining device, Computers are present day devices, which performs numerous capacities. The PCs have become an integral part of individuals. Math device can like- wise be called as the most seasoned PC.

CHARLES BABBAGE

• is considered to be the father of computer. Lady Ada

First computer programmer.

FIRST GENERATION: VACUUM TUBES (1940- 1956)

The primary PC frameworks utilized vacuum tubes for hardware and attractive drums for memory , and were frequently gigantic, occupying whole spaces. These PCs were over the top expensive to work and notwithstanding utilizing a lot of power, the primary PCs created a great deal of warmth, which was regularly the reason for breakdowns. First Generation: Vacuum Tubes (1940-1956)

Second Generation: Transistors (1956- 1963)

Transistors were scaled down and put on silicon chips, called semiconductors , which definitely speed up and productivity of PCs. Rather than punched cards and printouts, clients communicated with third era PCs through consoles and screens and interfaced with a working framework, which permitted the gadget to run a wide range of utilizations one after another with a focal program that observed the memory. Third Generation: Integrated Circuits (1964-1971)

The microprocessor brought the

fourth era of PCs, as a large number

of coordinated circuits were

constructed onto a solitary silicon

chip. What in the original occupied a

whole room could now fit in the

Fourth Generation: Microprocessors (1971-Present)

Fourth Generation: Microprocessors (1971-Present)

Fifth Generation: Artifi cial Intelligence (Present and Beyond)

COMPUTER

PROGRAMMING

the process of writing

instructions, or code, that

tells a computer how to

perform a task.

SOURCE CODE

a program is written in one or more languages that are intelligible to programmers, rather than machine code, which is directly executed by the central processing unit. The purpose of programming is to find a sequence of instructions that will automate the performance of a task (which can be as complex as an operating system) on a computer, often for solving a given problem.

COMPUTER PROGRAMMER

A computer programmer creates the code for software applications and operating systems. After a software developer designs a computer program, the programmer writes code that converts that design into a set of instructions a computer can follow.