lesson 2
Terms
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- Central processing unit (CPU)
- Also known as the microprocessor; the brains of the computer
- American Standard Code for Information Interchange
- Coding system that computers of all types and
- Input
- — Data that is entered into the computer system via an input or storage device.
- Random access memory (RAM)
- Where instructions and data are stored on a temporary basis. This memory is volatile.
- Byte
- A byte is another word for character; generally represented by 8 bits.
- Bit
- In binary (computer language), a bit represents a zero or one.
- Arithmetic/Logic Unit
- The part of the CPU that performs arithmetic computations and logical operations.
- Motherboard
- A circuit board that contains all of the computer system's main components.
- Machine Cycle—
- Comprised of the Instruction cycle and the execution cycle, it determines how quickly a computer processes data.
- Memory
- On the computer's motherboard, it's where data is stored.
- Read-only memory (ROM)
- Permanent storage; instructions are burned onto chips by the manufacturer.
- Main memory
- Also called random access memory or RAM, it is like short-term memory. It stores data while the computer is running. When the computer is turned off or if there is a loss of power, any data in the main memory disappears. The computer can read from and write to this type of memory.
- Modem
- Communications hardware device that facilitates the transmission of data.