What is computer?

 A computer is an electronic device that accepts data (input), processes it according to instructions (software), stores it, and produces results (output). It is essentially a powerful data processing system that converts raw data into information. 

All digital computers, regardless of their size or type, perform five fundamental functions: 

  1      Input: Taking in raw data and instructions from users.

  2     Storage: Storing data and instructions in memory for future use.

  3     Processing: Performing computations and logical operations on the data.

  4     Output: Generating results as useful information.

  5     Control: Managing and coordinating all other functions.

• Central Processing Unit (CPU):

  The "brain" of the computer, responsible for executing instructions and performing all calculations.  

   

  Memory (RAM):

• •    Random Access Memory is used for temporary storage of data and instructions that         the CPU is currently working with. 

    Storage Devices:
•   Devices like hard drives and SSDs are used for long-term storage of data and software. 
•   

• Input Devices:

  These devices allow users to enter data into the computer, such as keyboards, mice, scanners, and microphones. 

   

  Output Devices:

• These devices display or present the processed information to the user, including monitors, printers, and speakers.