Basic information of computer science.

Computer science

Computer science is the study of computation and its applications. Computation is the manipulation of information using computers. Information is data about something. Computers manipulate information by processing instructions called algorithms. Algorithms are mathematical rules that tell a computer what to do. A computer scientist develops these algorithms.

2. Programming

Programming

Programming is the use of computers to create software. Software is created by writing code. Code is written in a language called programming languages. There are many different types of programming languages. Each type of language has its own syntax (the way the words are arranged) and semantics (what they mean).

3. Data Structures

Data structures

Data structures are the ways that we organize our programs. We need to store information in a computer. Different kinds of data have different storage requirements. Storing numbers requires less space than storing pictures. We use data structures to store information efficiently.

4. Operating Systems

Operating system

An operating system is the program that makes sure everything works together on a computer. An operating system manages the hardware and provides services to users. The operating system gives us access to files, printers, modems, and network connections.

5. Hardware

Computer hardware

Hardware is the physical parts of a computer. These parts include the processor, memory chips, hard drive, monitor, keyboard, mouse, speakers, printer, and modem.

6. Internet

Internet

The internet is a worldwide collection of networks that enables people to share information. People connect to the internet using web browsers. Web browsers help us navigate the internet.

7. Networking

Networking

Network technology connects computers to each other. Ethernet cables and routers allow us to connect to the internet. Routers direct traffic between computers.