CompTIA A+ Terminology

CompTIA A+ Terminology - Safety, Basic Hardware
Created Sep 23, 2012
by ericaham
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Side ASide B
ESD
Electrostatic Discharge.  Passage of static electrical charge from one item to another. ...
EMI
Electromagnetic Interference.  Magnetic field interfering with  electronics. ...
RFI
Radio Frequency Interference.  Most devices are shielded to prevent RFI.  A few devices,...
Connectors, Plugs, Ports, Jacks
Connector- port, plug, jackPort- plug does into itJack- alternative to port, plug goes into...
Mini-Din Connectors

Also called PS/2 and DIN-6. Most commonly used for keyboards and mice. Modern systems have...
USB Connectors
Used with mice, keyboards, scanners, cameras, and printers. Come in three sizes: A (on computer),...
FireWire Connectors

Also known as IEEE 1394. 6-wire or 9-wire connector.  Moves data at incredibly fast speeds. ...
DB Connectors

Known as D-sub or D-subminiature or D-shell connectors. Used for almost every peripheral with...
RJ Connectors

RJ 11 used to connect phone jack for modems to connect PC to a network.  RJ-45 jack is...
Audio connectors and Sound
Speakers and monitors connect to audio jacks.  Most common kind is 1/8-inch connector,...
Connector used for keyboards
Mini-DIN or USB. Port colored purple.
Connector used for monitors
Connects to video connector, with old 15-pin female DB Video Graphics Array (VGA) or unique...
Connector used for mouse
Uses either USB or a light-green mini-DIN connector.
Connector used for printer
Old: parallel port (25-pin female DB) that's usually colored fuchsia; most printers now come...
eSATA

Some external hard drives and optical dives can connect via eSATA.
CPU
Central processing unit. Also called microprocessor. Performs all calculations in PC. Require...
RAM
Random access memory. Stores programs and data currently being used by the CPU. Average PC...
Motherboard
Everything connects to motherboard, either directly or indirectly.
Hard drive

Stores programs and data that are not currently being used by the CPU.  Most PCs have...
Optical drive
Use same PATA or SATA connections used with hard drive. CDs store around 700 MB come in three...
Hardware, Software
Hardware- physical computer equipment, such as electrical, electronic, magnetic, and mechanical...

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