Module 3 Flashcards
Processor cache
Stores frequently used data next to the processor so that it can easily and quickly be retrieved
Control Unit
Manages the flow of instructions within the processor
Responsible for fetching and decoding data
Arithmetic logic unit (ALU)
Responsible for performing arithmetic operations in the CPU
Responsible for executing and storing data
Volatile memory
Memory that loses its contents when power is removed
Nonvolatile memory
Memory that does not lose its contents when power is removed
Read-only memory (ROM)
Permanently installed memory on your computer attached to the motherboard. The ROM chip contains the BIOS, which tells your computer how to start
Power-on self test (POST)
Performed by the BIOS which at startups, a sequence that tests all computer components for proper operation
Firmware
Instructions on the ROM chip
Virtual memory
The capability of an operating system to temporarily store data on a storage medium until it can be “swapped” into RAM
Swap file
Data that cannot fit in RAM and uses an area of the hard disk called virtual memory. Also called paging file
Dynamic RAM (DRAM)
Memory needs to be constantly recharged or contents will be erased
Static RAM (SRAM)
Memory can be recharged less frequently than DRAM, but can be more expensive than DRAM
Magnetoresistive RAM (MRAM)
Memory uses magnetic charges to store contents, and can retain its contents in the absence of power
Multifunction device (MFD)
Also called an all-in-one printer; can serve as an input device by copying and scanning, as well as an output device by faxing and printing
Plotter
Large-format printer that uses charges wires to produce high-quality drawings for professional applications such as architectural blueprints
