Maintenance Of Computer System

Maintenance of computer system. • • • • • •

Checking that the technology is adequate. Regularly back up the data. Main quality of the storage. Checking the system for virus /Trojan/ worms and etc. Applying critical software updates all time. Portable appliance test (PAT)

Health and safety at work act 1974. Main responsibilities • • •

To work safety. To cooperate with your employer in any work safety system. To report any hazardous conditions.

Hazards and risks • • •

Electric shock from computer chassis or monitor. Some computer cases posing a” cutting” Manual handling or lifting, especially from laser printers toner.

What is the ESD? Why do we take ESD precautions before working in a computer system Box? • • • • •

ESD is electronic static discharge. Can do to damage or destroy the computer hardware or software. Cause components you touch to no longer work property, so you need anti- static bag or anti- mat. Make sure you use wrist strap or you’ve reliable ground point available the work site. Connect your body the ground point. Ground all equipment.

What is the main objective of an operating system, what program does an operating system control? •

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The most important program that runs on a computer and computer must have an operating system to run other programs. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. the operating system has even greater responsibilities and powers. It is like a traffic cop -- it makes sure those different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system.

When a computer switched on ,where is the operating system loaded? •

RAM is random access memory.

Post is power On Self Test The first windows version was windows 3.0 Operating system for computer does following • • •

Manages the disks and file. Manage the computer’s resources. Manages the computer’s memory.

Windows version before Windows 95. • • •

Microsoft Windows, version 1.0, released on 20 November 1985 Microsoft Windows version 2 came out on 9 December 1987, Microsoft Windows scored a significant success with Windows 3.0, released in 1990.

IBM O/P HISTORY • •

During the mid to late 1980s, Microsoft and IBM had cooperatively been developing OS/2 as a successor to DOS. On 25 June 1998, Microsoft released Windows 98. Three different Name WINDOWS

Windows NT • • • •

Windows NT 4.0 Workstation Windows NT 4.0 Server Windows NT 4.0 Server, Enterprise Edition (includes support for 8-way SMP and clustering) Windows NT 4.0 Terminal Server

Windows 98 Windows 2000 • • • • • •

Windows 2000 Professional Windows 2000 Server Windows 2000 Advanced Server Windows 2000 Datacenter Server Windows 2000 Advanced Server Limited Edition Windows 2000 Datacenter Server Limited Edition

Windows Millennium Edition (Me)

Windows XP Windows XP Home Edition • Windows XP Professional  Windows XP Media Center Edition 2003  Windows XP Media Center Edition 2004  Windows XP Media Center Edition 2005, released on October 12, 2004 Windows XP Tablet PC Edition 2005

Windows Server 2003 • • • • • •

Web Edition (32-bit) Standard Edition (32 and 64-bit) Enterprise Edition (32 and 64-bit) Datacenter Edition (32 and 64-bit) Small Business Server (32-bit) Storage Server (OEM channel only)

Windows Vista      

Starter (only available in developing countries) Home Basic Home Premium Business Enterprise (only available to large businesses and enterprises) Ultimate (combines both Home Premium and Business

Windows Server 2008 • • • • • • • • • •

Windows Server 2008 Standard Edition (32-bit and 64-bit) Windows Server 2008 Enterprise Edition (32-bit and 64-bit) Windows Server 2008 Datacenter Edition (32-bit and 64-bit) Windows HPC Server 2008 Windows Web Server 2008 (32-bit and 64-bit) Windows Storage Server 2008 (32-bit and 64-bit) Windows Small Business Server 2008 (32-bit and 64-bit) Windows Essential Business Server 2008 (32-bit and 64-bit) Windows Server 2008 for Itanium-based Systems Windows Server 2008 Foundation Server

Windows 7     

7 on October 22, 2009.

Starter (available worldwide with new PCs only) Home Basic (only available to emerging markets) Home Premium Professional Enterprise (available to volume-license business customers only)

Ultimate (available to retail market with limited availability to OEMs

What is the different between operating system and application? O/S is software that act as an interface between you and hardware. Also used speak the hardware language, offer you very specific graphical user interface to control the computer. Application is software that services a specific function and allows you to communicate or create and modify the documents.

What are 4 principles of computer maintenance? • • • • • • •

Make disk deframentaning. Clear cooker all time. Back up your information for External HDD. Formatting HDD. Refresh internet. Scan anti- virus every week. Update windows and ant-virus all time.

What is the main purpose of a PC Computer is a device that accepts information and manipulates, it is information storage, it from mechanical calculator. What is the main function of device driver? Software that tell hardware what to do, device driver simplifies programming by acting as a translator between a hardware device and the applications. State why the minimum system requirements should be checked when installing an operating system. To ensure system is a fits capacity computer size and requirement. So you have to check requirement when installs any programs to your pc. What is function of the bios when installing an operating system? Is basic Input and output system and refers to the firmware code run by a pc when it powers up, its primary function is to identify and initiate the component hardware such as the hard drive and optical disk drives.

BIOS are an acronym for Basic Input Output System. It is the program that stores configuration details about your computer hardware and enables your computer to boot up. Every time your computer is switched on the BIOS loads configuration data into main memory, performs a routine diagnostic test on your hardware, then loads the operating system.