Super computers are the most powerful computers available and are used by large organizations like NASA and government institutions for continuous processing. Mainframe computers have high processing speeds and storage capabilities used by banks to process customer information and transactions. Mid-range computers are used by medium sized companies for specialized applications like manufacturing operations or as network servers. Microcomputers or desktop computers are common personal computers used in homes and small businesses that can be placed on a desk, while notebooks are portable laptop computers and tablets are touchscreen laptops that can accept handwriting input.