Скачать или смотреть Introduction to New Book Computer Science 9th Class According to New Syllabus | 9th Class New Book |

#computerscience #9thclass #muhammadareebshahid
Computer Science is the study of computers and computational systems. Unlike electrical and computer engineers, computer scientists deal mostly with software and software systems; this includes their theory, design, development, and application.
Principal areas of study within Computer Science include artificial intelligence, computer systems and networks, security, database systems, human computer interaction, vision and graphics, numerical analysis, programming languages, software engineering, bioinformatics and theory of computing.
Although knowing how to program is essential to the study of computer science, it is only one element of the field. Computer scientists design and analyze algorithms to solve programs and study the performance of computer hardware and software. The problems that computer scientists encounter range from the abstract-- determining what problems can be solved with computers and the complexity of the algorithms that solve them – to the tangible – designing applications that perform well on handheld devices, that are easy to use, and that uphold security measures.
What Is Computer?
A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.
A computer consists of four major parts: the input, output, CPU (central processing unit), and memory. Input consists of anything you will add into the computer (microphone, keyboard, mouse, scanner), and output is how the computer gives back to you (think screen, speakers, etc.). The CPU or central processing unit is located on the motherboard and is the part of the computer where all that input/output information gets sent to the proper place. Memory, commonly referred to as RAM (random access memory), as you may already know, is where the information is stored.

There are three major pieces of hardware in a computer. The motherboard is the most important part of a computer and contains many subsystems such as the central processor (CPU), input/output chips as well as memory and application controllers. An Expansion Card fits into the expansion slot in a computer and is where you can add additional capabilities such as for video or graphic performance. Finally, and very importantly, is the power supply which supplies electric power to the electrical load of a computer.

FACEBOOK PAGE :   / muhammadareeb-shahid-327114351164278  
YOUTUBE CHANNEL :    / @smartcomputax5041  
COMPUTER BASIC SKILL & TRAINING COURSE :    • Computer Basic Skill & Training “How to Li...