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HARROW

Basic Computer Parts

TermDefinition
Expansion Slots Used to plug in additional circuit boards to your computer to either add or improve functionality.
Parallel processing Provides the ability to execute multiple instructions at the same time.
Gigahertz CPU clock speed measurement which is 1 billion cycles per second.
Biometric scanner Used to identify people by individual human characteristics such as fingerprints, iris or voice pattern.
OLED - Organic Light Emitting Diode May eventually replace LCD display screens as they do not require backlighting, making them far more energy efficient for any device that runs off battery power.
Resolution The number of picture elements, called pixels, that make up the image shown in the display screen.
Thermal printer Produce output by heating coated paper as the paper passes over the print head. Typically receipts.
Plotter Moves one or more pens across the surface of the paper to produce a drawing. Typically blueprints and technical drawings.
Network adapter Any device used to connect a computer to a network. Is the interface between your computer and the other networking equipment.
Protocols A set of rules that define how data is exchanged between two devices.
Byte A group of 8 bits that represents one character.
SSD - Solid State Drive A newer type of hard disk technology increasingly being used in portable computers.
Flash memory Chip-based technology where data is stored electronically on a chip instead of magnetically like a traditional HDD.
Optical disc A CD, DVD or Blu-ray disc.
Data buses Wires allowing data to travel between the components on the motherboard to the CPU and memory.
Motherboard The main circuit board in the computer.
Instruction cycle The CPU retrieving, decoding, executing and storing an instruction.
QR - Quick response codes A type of barcode that looks like a matrix of black square dots.
Wi-Fi adapter Communicates with a wireless access point or wireless router using radio frequencies to transfer data.
802.11 protocol The name of the standard developed to facilitate wireless communication among several hardware providers.
Created by: gharrow0001