The central processing unit The central processing unit (CPU) is the portion of a (CPU) is the portion of a computer system that carries computer system that carries out the instructions of a out the instructions of a computer program, to perform computer program, to perform the basic arithmetical, logical, the basic arithmetical, logical, and input/output operations of and input/output operations of the system. The CPU contains the system. The CPU contains microprocessor, memory, microprocessor, memory, mother board.mother board.

The microprocessor is an The microprocessor is an integrated circuit that contains integrated circuit that contains millions of transistors millions of transistors interconnected by small interconnected by small aluminium wires. The aluminium wires. The microprocessor's processing microprocessor's processing capabilities control and direct the capabilities control and direct the activities of the PC by interacting activities of the PC by interacting with the other electronic with the other electronic components on the components on the motherboardmotherboard. .

Memory is a capacityMemory is a capacity of computer to of computer to store data.store data.

There are two types of memory There are two types of memory 1.RAM 2.ROM 1.RAM 2.ROM

RAM is volatile memory it can lose RAM is volatile memory it can lose data when the computer is off.data when the computer is off.

ROM is non-volatile memory it can ROM is non-volatile memory it can not lose data when the computer is not lose data when the computer is off. off.

In personal computers, a In personal computers, a motherboard is the central printed motherboard is the central printed circuit board (PCB) in many circuit board (PCB) in many modern computers and holds modern computers and holds many of the crucial components of many of the crucial components of the system, providing connectors the system, providing connectors for other peripherals. The for other peripherals. The motherboard is sometimes motherboard is sometimes alternatively known as the main alternatively known as the main board,system board, planar board board,system board, planar board or, on Apple computers, the logic or, on Apple computers, the logic board. It is also sometimes board. It is also sometimes casually shortened to mobo.casually shortened to mobo.

It helps you automate various tasks that you can not do It helps you automate various tasks that you can not do manually. manually.

It helps you organize your data and information in a better way.It helps you organize your data and information in a better way. It has much more computing and calculating power then an It has much more computing and calculating power then an

ordinary human.ordinary human. It may help your work to be a lot easier.It may help your work to be a lot easier. It may be the storage of your important data and files.It may be the storage of your important data and files. It may help you solve problems faster than an ordinary human It may help you solve problems faster than an ordinary human

being can do.being can do. It has speed, storage, reliability, consistency and It has speed, storage, reliability, consistency and

communications.communications. It helps you to find useful information using the Internet.It helps you to find useful information using the Internet. It helps in businesses, factories, offices, schools and homes.It helps in businesses, factories, offices, schools and homes.

It can potentially destroy your social life and interactions It can potentially destroy your social life and interactions with humans if you do not maintain the balance. with humans if you do not maintain the balance.

It may effect to the destruction of your eye sight due to It may effect to the destruction of your eye sight due to radiation.radiation.

It may cause pimples and wrinkles.It may cause pimples and wrinkles. It may damage your studies and life.It may damage your studies and life. Too much time in front of monitor may adverse effect your Too much time in front of monitor may adverse effect your

eye sight and can also make you fat. eye sight and can also make you fat. The way it distracts and can deviate our thoughts and The way it distracts and can deviate our thoughts and

activities towards unproductive activities. activities towards unproductive activities. It could cause violation of privacy, impact on labor force, It could cause violation of privacy, impact on labor force,

health risks, impact on environment, distraction from work, health risks, impact on environment, distraction from work, and possible antisocial influences. and possible antisocial influences.