CLASSIFICATION BASED ON SIZE AND CAPABILITY
Classification digital Computer based on size and Capability
Based on size and capability, computers are broadly classified into
a. Microcomputers(Personal Computer)
A microcomputer is the smallest general purpose processing system. The older pc started 8 bit processor with speed of 3.7MB and current pc 64 bit processor with speed of 4.66 GB.Examples: - IBM PCs, APPLE computers
Microcomputer can be classified into 2 types :
1. Desktops2. Portables
The difference is portables can be used while travelling whereas desktops computers cannot be carried around.
The different portable computers are: -
1) Laptop2) Notebooks
3) Palmtop (hand held)
4) Wearable computers
Laptop: - this computer is similar to a desktop computers but the size is smaller. They are expensive than desktop. The weight of laptop is around 3 to 5 kg.
Notebook: - These computers are as powerful as desktop but size of these computers are comparatively smaller than laptop and desktop. They weigh 2 to 3 kg. They are more costly than laptop.
Palmtop (Hand held): - They are also called as personal Digital Assistant (PDA). These computers are small in size. They can be held in hands. It is capable of doing word processing, spreadsheets and hand writing recognition, game playing, faxing and paging. These computers are not as powerful as desktop computers. Ex: - 3com palmV.
Wearable computer: - The size of this computer is very small so that it can be worn on the body. It has smaller processing power. It is used in the field of medicine. For example pace maker to correct the heart beats. Insulin meter to find the levels of insulin in the blood.
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