About computer
computer is an electronic data processing device.It can read, write, compute and compel stored and process large volume of data.
Data processing cycle in computer:
- Input: Data is collected and enter into the computer.
- Storage: Whatever is entered is stored in its main memory.When the power is switched off, the memory will be automatically lost.
- Processing: It is the sequence of action performed on the data to get desired results.
- Output: Stored results are taken out of the main memory.
Components of Computer
- CPU(Central Processing Unit)
- Input Devices(Mouse, Keyboard, etc)
- Output device(Monitor, Speaker, etc)
Functions
- Maths Functions
- Logical Functions
- Statistical Functions
- Text Functions
- Date & Time Functions