Desktop computer

Desktop Computer is a personal computer which are formed for regular use at a single location. Desktop computer has separate monitor, keyboard and mouse. The early desktop computer were designed to lay flat on the desk but the modern computer has tower stand.

Notebook Computer

Notebook Computer is a personal computer which are smaller size than briefcase. We can easily transport and conveniently used in temporary spaces such as class room, libraries, office, meeting etc. Notebook computer is generally called as Laptop Computer. Notebook included keyboard, mouse pad, monitor (display screen), speakers in a single unit.

Net book Computer

Net book Computer is a personal computer which is small size and low power of notebook computer. It has less processing power than the notebook computers but it is suitable for web browsing and connecting wirelessly to the internet. 

Tablet Computer

Tablet Computer is a personal Computer which is a kind of mobile computer having a touchscreen or pen-enabled interface. It runs by adapted version of a desktop operating system. It is smaller than notebook computer but larger than smart phone.

PDA Computer

PDA (personal digital assistant) Computer is a personal computer which is a mobile device functioning as a personal information manager. We can use this for storing telephone numbers, email address, make calculations, keep the digital calendar, play games, excess the internet and so on.