Introduction to computers

1. Computer software *System software-operaring system,utility program. *Application software- general-purposed,specialized,apps. *Installing process of setting up software to work with the computer,printer and others.

2. Advantages +Speed +Realibility +Consistency +Storage +Communications

2.1. Disadvantages -Violation of privacy -Public safety -Impact on Labor Force -Impact on Environment -Health risks

3. 💻Supercomputers >Capable of processing more than one quadrillion datas in a single second. 💻Mainframe computers >Capable of great processing speeds and data storage. 💻Midrage computers >Processing capabilities less powerful than a mainframe computers but more powerful than a personal computers. 💻Personal computers >Perform all of its input processing,output and storage activities by itself.

3.1. 📱Mobile computers >Notebooks,laptop and tablet PCs. 📱Mobile devices >Smart phones,PDA,e-books readers and so on. 📱Games consoles >Mobile computing device designed for single-player or multiplayer video games.

3.1.1. 🖥Embedded computers >Special purpose computer that function as a component in a larger product. 1)consumer electric 2)home automatic devices 3)process controllee and robotics.

3.2. √Green computing:reducing the electricity. √Recycling √Regulating manufacturing process √Extending the life of computer √Immediately donating disposing

4. Computer applications in society 🧕🏻Education 💵Finance 😎Government 🤒Health care

5. Elements of an information system 1)Hardware 2)Software 3)Data 4)People 5)Procedures 6)Internet

6. Careers in IT 👷🏻webmaster 👷🏻software engineer 👷🏻computer support 👷🏻computer technician

7. *A computer is an electronic device to collect data(input). *Information processing cycle the series of input,process,output and storage activities(processing).

8. The components of computers #Input device-enter data and instructions. #Output device-Conveys information to one or more people. #System unit-components of the computer are used to process data. #Storage data-records(writes)/retrieves(reads). #Communications device-to send and receive data.

9. Network and the internet @Social networking is a collection of computers connected together. @Internet is worldwide collection of networks.

10. Examples of computer usage 🏘home user 🏙small office/home office user 📱mobile user