my computer dictionary
- algorithm: formula or set of steps for solving a particular problem.
- alphanumeric: using alphabetic letters, numbers, and special characters.
- ALU 1.Arithmetic & Logic Unit.The part of a computer's central processing unit which performs arithmetic operations on integers, and Boolean
operations. Floating-point operations are handled by a separate
floating-point unit. 2.(Association of Lisp Users).An international user group
for the Lisp programming language.
- binary: a system of numbers having 2 as its base and using 0s and 1s for its notation.
- boot 1.To load a computer�s operating system. 2.The process of loading a
computer's operating system.
- browser: a client program that allows users to read hypertext documents on the World Wide Web, and navigate between them
- buffer: a reserved area of memory for temporarily holding data.
- bug: An error in a computer program or in the computer's hardware that causes repeated malfunctions
- byte: The amount of memory space used to store one character, which is usually 8 bits
- character: a symbol that represents information, or the representation of that symbolby a computer
- chip: also called microelectronic or integrated circuit
- clock: (CLK). 1.A circuit in a computer that uses a quartz crystal to generate a series of regular pulses which are sent to the CPU
- command: an instruction given to the computer, by means of a keyboard, punch card, mouse, voice command, or other method
- compatible: able to work together
- CPU: Central Processing Unit
- cursor: the movable symbol on a computer screen that shows where the user is working, whether typing in text, drawing lines, or moving design elements around
- data: information; raw facts
- debug: to fix problems in hardware or software
- directory: the organization of folders and files and on a hard drive
- floppy disk drive: the disk drive where a floppy disk is inserted
- documentation: instructions that come with a software program, which may include paper or electronic manuals, README files, and online help
- DOS: Disk Operating System
- edit: to make changes in a file
- email or e-mail: electronic mail
- field: one of the items in a database record: for example, Name, City, Zip Code,
etc
- file: 1.A block of information in the form of bytes, stored together on a computer
or external digital storage medium, and given a name.A file may be a
program, a document, a database, or some other collection of bytes. 2.To
store in a file
- floppy disk: (FD).A removable, portable magnetic disk on which data and programs can
be stored
- flow chart: archaic form of visual control-flow specification employing arrows and
"speech balloons" of various shapes
- FTP: File Transfer Protocol.
- function keys: a set of special keys on a computer keyboard that are numbered F1, F2, etc.
- graphics: the creation, editing, and printing of pictures.Computer graphics has two
main methods: vector graphics (stored as a list of vectors) and raster or
bitmap graphics (stored as a collection of dots or pixels).
- hard copy: the paper version of a document, as opposed to the version on disk or
tape
- hard disk: one or more rigid magnetic disks rotating about a central axle with
associated read/write heads and electronics, used to store data
- hardware: the hardware is the physical part of a computer system; the machinery and
equipment
- hexadecimal: the base 16 numbering system, sometimes used as a short way of
representing binary numbers.The digits 0-9 are used, plus the letters A-F
which stand for numbers 10 to 15. The farthest-right digit is the ones place;
the digit next to the left is the 16s place; the next place to the left is 16^2 =
256, etc.Each place is 16 times the place immediately to the right of it.
- HTML: HyperText Markup Language
- HTTP: HyperText Transfer Protocol
- integrated circuit: (IC).Also called microelectronic or chip.A microelectronic device comprising many miniature transistors and other electronic components on a single
thin rectangle of silicon or sapphire, approximately 1/16" to 5/8" on a side, and
1/30" thick
- internet: a network of networks; a group of networks interconnected via routers
- interface: a shared boundary where two or more systems meet; or the means by
which communication is achieved at this boundary
- gigabyte: one billion bytes.Abbreviated GB, Gbyte or G-byte.
- kilobyte: (k, KB, Kb; also Kbyte or K-byte).One thousand bytes (103) or 1024 (210)
bytes.A unit of measurement used for computer file sizes.
- meg: 1.Mega, or million (M). Sometimes means 1,048,576. 2.Megabyte
- LAN: Local Area Network
- memory: also called main memory.The working space used by the computer to hold
the program that is currently running, along with the data it needs, and to run programs and process data
- menu: a onscreen list from which the user may choose an operation to be performed
- microprocessor: a computer with its entire CPU contained on one integrated circuit
- mnemonic: a memory aid; a word or expression which isdesigned to be easier to
remember than what it represents
- modem: a peripheral device that connects computers to each other for sending
communications via the telephone lines
- monitor: also called a display.A device that displays text and graphics generated by a computer
- operating system: (OS).The main control program of a computer that schedules tasks,
manages storage, and handles communication with peripherals
- output: information that comes out of the computer; for example, a picture on the
screen, a printed page, sound coming from the speakers, files printed to
disk or sent over a communications line
- port: 1.A socket at the back of a computer used to plug in external devices such
as a modem, mouse, scanner, or printer. 2.In a communications network, a logical channel identified by its unique port number. 3.To translate software from one computer system to another
- printer: computer hardware which prints information
- primary storage: the internal memory of a computer; Random Access Memory
- program: a program helps the user accomplish a specific task
- prompt: a message from the computer that asks the operator to do something
- RAM: Random Access Memory
- ROM: Read-Only Memory
- secondary storage: storage other than the computer's internal memory (RAM); external
storage, such as disk or magnetic tape
- silicon: (Si).An element found in rocks and sand, which is used as the base, or
substrate, for computer chips
- software: software is the programs that tell a computer what to do
- syntax error: a discrepancy between a computed, observed, or measured value or
condition and the true, specified, or theoretically correct value or condition
- text file: a file containing only text characters, usually ASCII characters;
contrast with graphics file and binary file
- URL: Uniform Resource Locator (formerly Universal Resource Locator)
- Windows: operating system
- WWW: World Wide Web
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