Chapter 1.2, Problem 1.2CP

Hardware:

The computers are made up of many physical devices or components which are referred as “hardware”.

• A computer is the collaboration of many devices that work collectively to perform specified tasks and make it as a single device.
• Examples for hardware are monitor, keyboard, mouse, and so on.

Five components of computer system are as follows:

• The central processing unit (CPU)
• Main memory
• Secondary storage devices
• Input devices
• Output devices

Central Processing Unit (CPU):

The task that is performed by the computer can also be called as program execution. The execution process or task is carried out using the part of the computer named as “CPU”.

It is the main component of a computer; because without CPU it is not possible to run any software.

• CPU is used to run or execute the programs in a computer.

Main Memory:

While executing the computer program, the main memory stores a computer program and also data of the program.

• Consider an example, suppose we are doing a PowerPoint program to write presentation for particular topics; at that time, the PowerPoint program and presentation are stored in memory.
• It is also known as “RAM” or “Random Access Memory”.

Secondary Storage Devices:

The device which is used to store data for long period of time is referred as “Secondary storage device”...