Components of the computer

1. Input Unit

1.1. keyboard

1.2. mouse

1.3. scanner

1.4. finger scan

1.5. microphone

1.6. webcam

2. Central Processing Unit

2.1. CPU

3. Output Unit

3.1. Printer

3.2. Plotter

3.3. Monitor

3.4. LCD Projector

3.5. Speaker

4. Memory Unit

4.1. RAM: Random Access Memory

4.2. Hard Disk

4.3. ROM: Read Only Memory