| Term | Definition |
|---|
| ALU | carries out calculations and makes logical decisions |
| Registers | Used to store results of calculations or memory addresses. |
| Addressability | Each storage location had its own unique address. The processor is able to locate data stored in memory by going to the storage in memory by going to the storage location where it is stored. |
| Input Devices | Hardware devices that send data to the computer. |
| Output Devices | Hardware devices that receive data from a computer. |
| Main Memory | Where programs and data are used when they are in use. |
| Processor | This carries out all the instructions it is given. |
| RAM | RAM is a temporary data store, data is lost when there is no power. |
| ROM | ROM is a permanent data store, data is kept even when the power is lost. |
| Control Unit | The computerized part of the speech processor. Most of the controls, such as program, volume and sensitivity, are located on the control unit. |
| Backing Storage Devices | Backing Storage devices are used to store programs and data when they are not in use. |
| Clock Speed | The rate at which a computer's internal system clock operates. The clock is used to synchronize operations between the components within the clock. |
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