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39 Cards in this Set
- Front
- Back
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Micro Computer
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A personal computer; designed to meet the computer needs of an individual.
Provides access to a wide variety of computing applications, such as word processing, photo editing, e-mail, and internet. |
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Desktop Microcomputer
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A microcomputer that fits on a desk and runs on power from an electrical wall outlet.
The CPU can be housed in either a vertical or a horizontal case. Has separate components (keyboard, mouse, etc.) that are each plugged into the computer. |
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Laptop Computer
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A portable, compact computer that can run on an electrical wall outlet or a battery unit.
All components (keyboard, mouse, etc.) are in one compact unit. Usually more expensive than a comparable desktop. Sometimes called a Notebook. |
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Workstation
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Powerful desktop computer designed for specialized tasks.
Can tackle tasks that require a lot of processing speed. Can also be an ordinary personal computer attached to a LAN (local area network). |
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Super Computer
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A computer that was the fastest in the world at the time it was constructed.
Can tackle tasks that would not be practical for other computers. Typical uses Breaking codes Modeling weather systems |
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Main Frame
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Large expensive computer capable of simultaneously processing data for hundreds or thousands of users.
Used to store, manage, and process large amounts of data that need to be reliable, secure, and centralized. Usually housed in a closet sized cabinet. |
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Server
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Purpose is to “serve.”
A computer that has the purpose of supplying its users with data; usually through the use of a LAN (local area network). |
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Hand Held Computer
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PDA
Computer that runs on batteries |
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Tablet Computer
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A "tablet computer", or simply "tablet", is a complete computer contained entirely in a flat touch screen that uses...
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System Unit
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A system unit, also known as a S.U., is the main unit of a personal computer, typically consisting of a metal or plastic enclosure..
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Motherboard
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The motherboard is the main circuit board of the computer
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Circuits
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A roughly circular line, route, or movement that starts and finishes at the same place.
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Hertz
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a measurement to describe the speed of the system clock
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Mega Hertz
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1 million cycles per second
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Giga Hertz
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the microprocessor's clock operates at a speed of 1.3 billion cycles per second
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Microprocessor Chip
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our computers have the intel dual-core processing chip
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Binary Number System
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A method for representing letters or numbers using only 2 digits, 0 and 1
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Byte
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A byte is equal to 8 bits
A byte is the amount of memory it takes to store one character. |
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Bit
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each 0 or 1
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Byte
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8 bits
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Kilobyte
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1000 bytes exactly 1024 bytes
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Mega Byte
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1 million bytes
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Gigabyte
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1 billion bytes
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Terabyte
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1 trillion bytes
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Secondary Storage
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is needed to store data and programs
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3 types of secondary storage
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1. magnetic storage
2. Optical Storage 3. Flash Storage/Memory |
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Magnetic Storage
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any storage medium n which different patterns of magnetization are used to represent stored bits or bytes of information
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3 types of magnetic storage
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1. Magnetic Tape
2. Floppy Disks 3. Hard Disks |
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Optical Storage
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A means of recording data as light or dark on CD or DVD.
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How is reading done
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low-power laser light
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Pits and Lands
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Pits-dark spots
lands- lighter, non-spotted surface areas |
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CD-ROM
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Cds read that can be read but not written to...
Ex: Computer games or music CDS |
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CD-R
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Cds that can be written to once- about 800 MB
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CD-RW
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Cds that can be rewritten to up to about 100 times- 800 MB
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DVD-ROM
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DVDs that can be read but not written to
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DVD-R
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Rewritten once-4.7 GB
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DVD-R DL
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Rewritten once-8.5 GB
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DVD-RW
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rewritten many times
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Nonvolatile
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electrically erased a programed anew and that retains its data without a power supply
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