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Computer Course For beginners

Computer Course For beginners . Duration : 2 Weeks Classes Per Week : 3. Lecture # 1 Introduction To Computers & Their Components. What is a computer ?. A computer is an electronic machine used to perform different tasks for e.g.: for gaming ,

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Computer Course For beginners

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  1. Computer Course For beginners Duration : 2 Weeks Classes Per Week : 3

  2. Lecture # 1Introduction To Computers &Their Components

  3. What is a computer ? A computer is an electronic machine used to perform different tasks for e.g.: for gaming , listening songs , watching movies , chatting with Friends , doing some office work (like making a Presentation) and so on.

  4. How a computer works ? A computer works by taking commands given by us or by a device present inside it and then gives us the result .

  5. How we give commands to a computer ? We give commands to a computer by using Some electronic devices like : A mouse , Keyboard , joystick e.t.c.

  6. Components Of A Computer A computer has following major components : • CPU(Central Processing Unit) • Input Devices • Output Devices

  7. What is a CPU ? A CPU is a combination of different components or parts responsible for performing different tasks .

  8. What are output devices ? The output devices like monitor ,LCD’s Connected to a CPU are used to show us the results generated by the CPU.

  9. Parts Of A CPU A CPU has : - i).Input/Output Ports ii).Memory iii).Processor All these parts are present on motherboard an electrical circuit holding them together.

  10. What is an input/output port ? An input/output port is a point present normally on back of cpu for connecting input and output devices to it .

  11. What is memory ? A memory is a place where CPU stores information either temporarily or permanently .

  12. What is a processor ? A processor is part of CPU responsible for performing all the operations on commands given by us through input devices.

  13. Types Of Memory There are two main types of memory : i).Temporary ii). Permanent

  14. Temporary Memory On a CPU the temporary memory is RAM (Random Access Memory ) and Cache Memory.

  15. Permanent Memory On CPU the permanent memory is ROM(Read Only Memory ) and Hard Disk.

  16. In which unit speed of processor is measured ? Speed of a processor is measured in Hz(hertz) . For e.g. we say Processor A is 3.20Ghz(Giga hertz) and Processor B is 2.00Ghz 1khz(kilo hertz)=1000hz 1mhz(mega hertz)=1000khz 1ghz(giga hertz)=1000mhz

  17. In which unit size of memory is measured ? The size of memory is measured in bytes for e.g. we say processor A has 2mb of RAM processor b has 7Gb of RAM. 1Mb(megabyte)=1024KB(Kilobytes) 1Gb(gigabyte)=1024MB(Megabytes) 1Tb(terabyte)=1024GB(Gigabytes)

  18. How we select a CPU ? We will select a CPU having greater memory(both RAM, Cache Memory and Hard disk) and a processor of higher speed

  19. Lecture # 2Introduction To Software's & Installation Of Windows Based Operating System

  20. What is a Software ? A software is like soul inside a cpu without it we cannot use it for performing different tasks. In reality they are a line of statements telling the computer what to do and how to do . Different software's are used for different purposes like for playing songs and videos we use windows media player and so on.

  21. What are the sources of getting a software ? A software can be installed from a usb drive, cd/dvd/blue ray discs and from any website over the internet.

  22. What is an operating system ? An operating system provides an interface to a user so that he/she can use computer resources like storage(for storing data) ,speakers(for listening songs) and other different software's like for playing games ,watching videos e.t.c.

  23. Installing Windows 7

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