Shared Flashcard Set

Details

Essential Intro. To Computers
pgs. COM 8 - COM 13
25
Computer Science
10th Grade
09/10/2007

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Cards

Term
Memory
Definition
Also called random access memory, consist of electronic components that temporarily store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processed data (information).
Term
Kilobyte
Definition
Abbreviated by using KB, it equals 1,000 bytes.
Term
Megabyte
Definition
Abbreviated MB, equal 1 million bytes.
Term
Byte
Definition
One memory location / character.
Term
Impact printers
Definition
Print by striking an inked ribbon against the paper. Examples - dot-matrix.
Term
Byte
Definition
One memory location / character.
Term
Inkjet Printer
Definition
Form characters or graphics by using a nozzle that sprays tiny drops of ink onto the page.
Term
Nonimpact
Definition
They print other than striking a ribbon against paper. Examples - inkjet and lasers.
Term
PPM
Definition
Printer's Speed
Term
Laser Printer
Definition
High speed and quality non impact printer that employs copier-machine technology. It converts data from the computer into a beam of light that is focused on a photo conductor drum, forming the images to be printed.
Term
Display Device
Definition
An output devices that visually conveys text, graphics, and video information.
Term
Monitor
Definition
A display device that us packaged as a separate unit.
Term
Flat Panel Monitor
Definition
LCD is considered to be the most popular type of flat panel monitor. It uses a liquid display crystal, similar to a digital watch.
Term
CRT
Definition
Cathode Ray Tube monitor is composed of individual picture elements called pixels.
Term
Pixel
Definition
Individual Element
Term
Storage Device
Definition
Used to store instructions, data and information when they are not being used in memory.
Term
Magnetic Disk
Definition
Use magnetic particles to store items such as data, instructions, and information on a disk's surface.
Term
Formatting
Definition
The process of dividing the disk into tracks and sectors so the computer can locate the data, instructions, and information in the disk.
Term
Track
Definition
A narrow recording band that forms a full circle on the surface of the disk.
Term
Sectors
Definition
Pie shaped sections which breaks the tracks into small arcs.
Term
Hard Disk
Definition
Also called a hard disk drive is a storage device that contains one or more inflexible, circular platters that magnetically store data, instructions, and information.
Term
Head Crash
Definition
When a read/write head touches a platter, usually resulting in loss of data or sometimes the entire drive.
Term
Backup
Definition
A duplicate of a file, program, or disk that you can use in case the original is lost, damaged, or destroyed.
Term
Floppy Disk
Definition
Also called diskette, are an inexpensive portable storage medium, most widely used is 3.5 inches that can store up to 1.44 MB's.
Term
Floppy Disk Drive
Definition
A device that can read from and write on a floppy disk.
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