1. PCs ENVIRONMENT and PERIPHERALS Lecture 5

2. Computer Maintenance software: Operating System: Define: - An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. - The operating system is a main component of the system software in a computer system. Application programs require an operating system to function.

3. Computer Maintenance software: Type of OS: 1- Single task single user(DOS). 2- Single user, Multi tasking(Windows). 3- Multi-user, Multi task(Unix, Linux). Company that product OS: Microsoft – Apple – Sun Micro system.

4. Main differences between OS’s: - User Interface. - Command and use. - Setting. - System Requirement.

5. Example of Windows Operating System: Windows 95 Windows 98 Windows 2000 Windows Xp, Vista, Windows 7, Windows 8 … etc

6. Windows 8 versions: 1) Windows 8 2) Windows 8 Pro 3) Windows 8 Enterprise 4) Windows RT

7. Windows 8 versions: 1) Windows 8 : the basic edition of Windows

8. Windows 8 versions: 2) Windows 8 Pro : is designed for business network environments, it is targeted towards enthusiasts and business users. Enthusiast : a person who is highly interested in a particular activity or subject.

9. Windows 8 versions: 3) Windows 8 Enterprise : is designed for business network environments (same as Windows 8 Pro*), Plus it has premium features designed to provide the mobile productivity, security, manageability and virtualization needs of today's businesses. Enterprise: a project or undertaking, typically one that is difficult or requires effort.

10. Windows 8 versions: 4) Windows RT : edition of Windows designed for mobile devices

11. Some of Windows 8 features :  Airplane mode  Start screen  The Charms menu  File Explorer  Family Safety  SkyDrive integration  Windows Store … etc

12. Windows 8: System requirements :  Processor: 1 gigahertz (GHz)  RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)  Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)  Graphics card: Microsoft DirectX 9 graphics device with WDDM driver.

13. Plan before install: - Check system requirement. - All PC components (CD-Drive). - Back up all files and programs. Install: Options: - Clean Install. - Upgrade offer an existing windows version. - Side by side installation or (multi boot).

14. FORMAT & INSTALL Windows 8