Thursday, February 18, 2010

System clock


A time-of-day clock in a computer system

Scanner


A device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image

Read-only memory (ROM)


Memory whose contents can be accessed and read but cannot be changed

Random access memory (RAM)


The most common computer memory which can be used by programs to perform necessary tasks while the computer is on

Pointer


Indicator consisting of a movable spot of light (an icon) on a visual display

Plotter


A plotter is a vector graphics printing device that connects to a computer.

Output devices


An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system

Optical storage devices


Is a term fromengineeringreferring to the storage of data on an optically readable medium

Nonimpact printers

A printer that prints without banging a ribbon onto paper

Network drive

A connection to the hard drive of a remote computer, allowing you to access shared files and directories

Mouse


A hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad

Motherboard



A motherboard is the central or primary printed circuit board (PCB) making up a complex electronic system, such as a modern computer

Memory


An electronic memory device; "a memory and the CPU form the central part of a computer to which peripherals are attache

Main Memory


Computer data storage, often called storage or memory, refers to computer components, devices, and recording media that retain digital data use

Keyboard


Device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like

Instruction cycle (I-cycle)


Is the time period during which a computer reads

Input devices


An Input device is any piece of computer hardware equipment used to provide data and control signals to an information processing system

Impact printers


a printer that strikes the paper in order to form images

Hard disk drive


Commonly referred to as a hard drive, hard disk, or fixed disk drive, is a non-volatile storage device which stores.

Execution cycle (E-cycle)


When a computer obeys the instructions in a computer program

DVD


A digital recording (as of a movie) on an optical disk that can be played on a computer or a television set

Controller


Used for interfacing with peripherals

Central processing unit (CPU)

Its the "brain" of the computer and that's where most calculations and processing takes place.

CD-ROM


A round portable disk that can store data

Byte


A unit of information made up of 8 bits

Bit


It means binary digit which is the smallest unit of information

American Standard Code for Information Interchange (ASCII)


The standard code used for exchanging data over American processors

Monday, February 8, 2010

My Expectations For Digital World

My expectations for digital world is to at least pass the class with a 75 and my goal is to pass the class with at least a 85 also to under stand all the aspects for the computer world. one of my other expectations is to get a long with the teacher and my peers. if i have these expectations and manage to accomplish these goals i will pass the class.