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Level 126

Hardware


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Hardware
All of the physical devices that collectively constitute the item we think of as a desktop or a laptop computer
Software
a collection of computer programs that tell the computer how to perform a particular task
Firmware
Programs that usually do the same things over and over - Usually stored in ROM, this is the combination of persistent memory and program code and data stored in it.
RAM
A form of Volatile Memory - A random-access device allows stored data to be accessed directly in any random order.
ROM
A class of storage medium used in computers and other electronic devices. Data stored in this cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distri…
EEPROM
Electronically Eraseable Programmable Read Only Memory
Volatile Memory
Memory that requires power to retain the stored information
Non-volatile memory
Memory that can retain stored information even when not powered
Hard Drive
A place to store stuff you want to keep - non-volatile
HDD
Hard Disk Drive - mechanical spinning platters -weeee!
SSD
Solid State Drive - uses flash memory - no moving parts, smaller, faster, more expensive per GB
Power Supply
Converts AC (alternating current) power from the mains supply (your wall) to several DC (direct current) voltages. Output depends on the hardware needs of the computer.
CPU
acronym for central processing unit, where all the PCs calculations take place
GPU
Graphics Processing Unit - Specially designed to do graphics processing dirty work that the wimpy CPU can't handle.