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Types of Computers
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- 1Definition of computerAn electronic device for storing and processing data, typically in binary form.
- 2List different types of computers- Microcomputers
- Mainframe computers
- Mini computers
- Portable data entry terminals
-Embedded computers - 3Where are microcomputers most common?At home or in the workplace
- 4List types of microcomputer- Desktop personal computers
- Personal digital assistants (PDAs)
- Laptops
- Notebooks
- Tablets - 5What are mainframe computers?Mainframe computers are large computers that are capable of handling and processing very large amounts of data very quickly
- 6What is the speed of a mainframe measured in?Millions of instructions per second (MIPS)
- 7What is the typical mainframe speed?250 MIPS
- 8What are minicomputers?They are inbetween microcomputers and mainframe computers.
They tend to look like big desktop computers but are able of handling and processing large amounts of data like a mainframe computer. - 9What are Portable data entry terminals (PDETs)?Portable data entry terminals (PDETs) are hand-held devices that are used to record or capture data away from a mainframe computer.
- 10Name examples of portable entry data terminals- Barcode readers
- The device used by electricity and gas meter readers - 11What are peripheral devices?Devices that are connected to a computer but are not physically part of it
- 12How are peripheral devices controlled?They are controlled by the CPU
- 13What are microprocessors?A single chip that performs the functions of a CPU.
- 14What kind of devices are they used in?- Washing machines
- Mobile phones
- Video recorders
- Microwaves
- Laptops - 15What are embedded computers?When computers form part of the machine that they are controlling
- 16How do they work?- The programs used are stored on a ROM (Read Only Memory) chip and activate when the machinery is turned on.
- They then react to inputs from sensors and send commands (or outputs) to the machine.
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- GCSE ICT Fichas sobre Types of Computers, creado por nunaa001.303 el 10/09/2013.
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