CS 101
Terms
undefined, object
copy deck
- Back-up
- the process of saving data especially for data recovery.
- Hardware
- physical parts of the computer system
- Direct Connection
- a dedicated dirrect connection to the internet through a lan, own ip addr.
- Extension
- a file name feature usually 3 characters ex ppt.
- File compression
- the process of reducing the size of a file so that you can fit more files in same
- File decompression
- the process of restoring o compressed file back to original size.
- Formatting
- changing fonts and appearance of a document
- Hard Disk
- a disk that spins rapidly in the computer for storage
- Hyperlink
- a word phrase or picture that acts as a button for www
- operating system
- a system of programs that performs a variety of technical operations
- Peripheral
- an external device such as a mouse or a keyboard
- RAM
- memory that sores program instrucions and data temporarily
- ROM
- memory that includes permanent information only. new information never written on it.
- Software
- Instructions that tell the hardware what to do to transform inplut into output
- System Software
- Software that handles the details of computing includes the operatiing system and utility programs
- URL
- the address of a website
- Viruses
- software that spreads from program to program ;software sabbotage
- workstation
- a highend desktop computer with massive computing power
- WAN
- a network that extends over long distance
- Time sharing
- technique by which maingrame computers communicate with several users simultaneously
- Terminal
- combination keyboared and screen that transfers information to and from a mainframe computer
- Supercomputer
- fast, powerful, used for applications that demand maximum power
- PDA
- pocket sized computers used for organizing
- Output
- information given out by the computer
- LAN
- multiple personal computers conncted on a network
- Intranet
- self contained intraorganizational network that is designed like the internet
- input
- information taken in by the computer
- Firmware
- a program usually for special purpose computers stored on a rom chip so it cannot be altered
- ASCII
- a code that represents characters as 8 bit codes allows binary comp to work with letters, digits
- Backward compatible
- able to run software written for older cpu's able to tead and write files compatable with older versions
- Bit
- binary didgit the smallest unit of information. two values 0 or 1
- byte
- grouping of 8 bits
- CMOS
- complementary metal oxide semi conductor stores small amouonts of data for long periods of time on batteries
- Digital
- Information made up on discreet units that can be counted
- Gigabyte
- 1000 megabytes
- Kilobyte
- 1000 bytes of information
- Megabyte
- 1 million bytes
- Motherboard
- the circuit board that contains a computers cpu. also called a system board
- Nanoseconds
- a billionth of a second: common with units of measurement for read/write access to RAM
- Nonvolatile memory
- memory that is not lost when the computer is shut off.
- Secondary
- the category of computer storage found in peripherals
- Slots
- An area inside the computer's housing that holds special putpose circuit boards
- Storage device
- Long term repository for data. disks and tape drivers are examples
- Terabyte
- I million gigabytes
- Unicode
- 65.000 character set for makeing letters,digits and special characters fit into the computers binary circuit
- Universal serial bus
- USB allows peripherals to be chained together.
- Point of sale
- a terminal with a wad reader, arcode scanner and other devices that captures check out at a store
- Plotter
- an automated drawing tool that produces finaly scaled drawings by movin pen in response to comp commands
- Optical mark reader
- a reading device that uses reflected tlight to determine the location of pencil marks on tests
- Optical character recognition
- software that locates and and identifies printed characters embedded in images