30 terms

Unit 3--Memory & Storage

Unit 3 Words to Know
STUDY
PLAY
Memory
The area in the computer that temporarily holds data waiting to be processed
RAM (Random Access Memory)
Memory that holds data as you manipulate (process) it
ROM (Read Only Memory)
Contains the instructions the computer uses when it 'boots up'
Binary Code
The language that computers communicate with and process information
Bit
The smallest unit of information that a computer handles; Each individual 0 or 1
Byte
A combination of 8 bits; represents a single character, symbol or digit
Kilobyte (KB)
Approximately one thousand bytes
Megabyte (MB)
Approximately one million bytes
Gigabyte (GB)
Approximately one billion bytes
Terabyte (TB)
Approximately one trillion bytes
Storage
The place where data is held while it is not needed for processing
Magnetic Storage
A means of recording or saving data onto disk or tape by magnetizing particles
Hard Drive
A mass storage device located inside a computer's system unit
External Hard Drive
A hard drive located in a separate case and sits outside of your computer's system unit
Floppy Disk
A magnetic storage device that is becoming obsolete because it does not have enough storage capacity to save one song or one high-resolution photo
Magnetic Tape
Used by some businesses to back up and archive large amounts of data
Optical Storage
The use of low powered lasers to save (burn) and read data from CDs and DVDs
CD
An optical storage device that is used to store music, software and documents
DVD
An optical storage device that is used to store videos; it also allows for better graphics and greater resolution photos
Electronic Storage
Also known as Flash storage, this is the use of a chip to electrically save, erase or reprogram data
Flash Drive
A portable electronic storage device that has an integrated USB port
Memory Card
A storage device used for storing data in digital cameras, mobile phones, etc.
Cloud Computing
Data is stored on servers that can be accessed on the Internet
CD-ROM
A CD that you can never save to
CD-R
A CD that you can save to once; thereafter it is read only
CD-RW
A CD that you can burn to many times until it is full; you can reformat, erace and rewrite to them
Volatile
Temporary Memory; all data is lost if the computer looses power.
Non-Volatile
Permanent Memory; Contains the instructions the computer uses when it boots.
SaaS
Stands for Software as a Service; you pay to access software over the Internet
Solid State Drive
Resides in your computer's system unit; Often replaces the hard drive or enhances your computer's storage capabilities. Data is stored to this device using electronic semiconductors; it has no moving parts.