l  Computers on a network are called clients or nodes. 

l  an electronic device that receives data, processes data, produces information, and stores the data and information

l  text, numbers, sounds, images, or video

l  perform specific task and are found in devices such as MP3 players, digital watch, etc.  

l  allows specified outside organizations to access a company’s intranet.

l  a small image that represents a file, command, or another computer function.

l  World’s largest network

l  a network for the exclusive use of employees within a company or organization. 

l  large, expensive computer capable of supporting hundreds or even thousands of users. Used by large companies.

l  Two or more computer systems linked together are considered a network. 

l  Computers on a network are called clients

l  computers that allocate resources on a network; supports hundreds of users. 

l  the fastest type of computer used by the government or large corporation

l  a software program that you use to retrieve documents from the Web

l  identifies a site on the Internet

l  the first pages that is displayed when you start your browser

l   is an Internet standard that allows you to download and upload files

l  is a text-based link to other documents and is often called a link or hyperlink

l  format of Web pages, determines how Web pages are formatted and displayed to users

l  allows computers to communicate with hypertext documents

l  means that all brands, models, and makes of computers can communicate with each other.

l  a standard format for transmitting data on the Internet

l  The web page address is often referred to as the URL or Uniform Resource Locator

l  First part of address indicates protocol to use

l  Second part identifies the domain name

l  where users can modify content, participatory Web, blogs, wiki’s, social-networking sites

l  often referred to as the URL or Uniform Resource Locator

l  is a subset or an application that makes use of the Internet

l  AND, OR, NOT

l  a collection of organized information.

l  are the number of results that are shown to you based on your keywords

l  describe the information you are trying to locate within a Web page.

l  is when a search engine offers to show you similar pages

a software program that lets you search the Internet using keywords

• Uses the *

• l  helps if unsure of correct spelling 

l  arithmetic/logic unit (ALU)

performs arithmetic computations and logical operations

(short for "binary digit") is the smallest unit of measurement used to quantify computer data. It contains a single binary value of 0 or 1.

l  mounts into the case, and is a circuit board that contains many integral components.

–        the central processing unit

–        memory

–        basic controllers

–        expansion ports and slots

l  Processor or central processing unit (CPU) 

• the brains of the computer

  housed on a tiny silicon chip

• Chip contains millions of switches that control the flow of electricity

l  random access memory (RAM)

- Short-term memory on motherboard

-When computer is turned off whatever is on RAM is disappears

-For long-term use hard disk drive or USB drive

l  read-only memory (ROM)

- Also found on motherboard and throughout system

-Contains specific information for computer operations

-Instructions remain even when power is off

l  Universal Serial Bus (USB) 

- can connect up to 127 different peripherals with one connector

–        Replacing serial and parallel ports on newer computers

–        Capable of data transfer of up to 470 Mbps (megabits per second)

An authentication technique using a person’s physiological or behavioral characteristics

–        - Primarily used to store data on the inside of the computer

–        External units also available

–        Accessing data is faster and the amount of data that can be stored is much larger

–        Storage size measured in megabytes or gigabytes 

- is data entered into the computer to be processed

- is an output device used as a computer display; provides soft copy

- most common output device

–        - Use laser technology to read/write on silver platters

–        Most common types are CDs and DVDs

- is data that has been processed into a useful format

-Printed text, spoken words, music, pictures, video, or graphics

- display processed data or information.

is an input device that allows a user to position the pointer on the screen

l  solid-state storage

–        - Non volatile, removable storage medium

–        Everything processed electronically, no moving parts

–        Miniature mobile media, USB flash drives

-          is productivity software designed for an end user such as word processors

- is the process of starting a  computer

l  graphical user interface (GUI)

- make computers easy to use

- When the user turns on the computer a symbolic desktop is displayed with various icons representing files, disks, and programs

-Most people use a mouse to click the icons and execute commands

- convert English-like software programs into machine language

- allow a group of two or more microcomputers to be connected

l  operating system (OS)   

- Part of the system software

-provides an interface between the user or application program and the computer hardware

-Windows 

l  system software

- coordinates and controls the resources and operations of a computer system.

-Three major categories of system software are operating systems, utilities, and language translators.

-Portable operating system

-is an operating system frequently used by scientists and programmers, originally developed by AT&T

-Considered a multitasking, portable operating system that can run on almost any hardware platform

l  help you perform housekeeping chores such as:

-formatting a disk

-copying a file

-backing up the hard drive

--consolidating fragmented files

·         The capacity of an Internet connection

·         another wireless network technology reserved for short-range applications such as transferring data from a cell phone to a headset, or between a computer and peripheral devices.

·         a set of rules for transmitting and receiving data from one network device to another

·         a unique name that identifies an internet resource such as a website

·         a wired network technology requiring a cable to connect network devices

·         is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the internet protocol for communication

·          a company that offers access to Internet

-ISP connects to NSP to access the Internet backbone

·         connects personal computers within a very limited geographical area (home network)

·         covers large geographical area and consists of several smaller networks

·         a type of network that transmits data from one device to another using radio waves.

·         - is the exclusive right, granted by law for a certain number of years, to make and dispose of literary, musical, or artistic work

·         - refers to the age of the information, how long it has been posted, and how often it is updated.

·         an attempt to deceive an audience into believing that something false is real

·         when criminals gather personal information, acquire credit, and conduct transactions using false identities

·         the ability to use links to move through a site

·         Processes and business methods may be protected by this which guarantees the inventor exclusive rights to the process or method for a certain period of time. 

·         If copyright protection has lapsed, then the work is available for anyone to copy

·         is software distributed on an honor system.

-free for an evaluation period but requires payment if you continue to use it beyond the evaluation period 

·         It’s an agreement between the software developer and the buyer that gives the buyer the right to use the program

·         unauthorized copying of software

·         is a site that has paid the search engine a fee in exchange for being listed in the particular section on many of their pages 

·         similar to a copyright but relates specifically to visual or commercial images

·         stories that at one time could have been partially true, but have grown from constant retelling into a mythical yarn

·         The goal of this software is to process information on its own without human intervention

·         examine a fingerprint, a voice pattern, or the iris or retina of the eye and compare them against employee records

·         criminal act committed through the use of a computer

·         involves the manipulation of a computer or computer data in order to obtain money, property, or value dishonestly or to cause loss

·         involves invading someone else’s computer

·         Changing data before or after it is entered into the computer

·         the buying and selling of goods and services using the Internet.

·         refers to programs and software that help people work together despite location

-One of the more common types of groupware is e-mail.

·         relates to creating computer components that are less than 100 nanometers in size

·         uses light beams for the internal circuits instead of electricity

·         uses the laws of quantum mechanics and the way that atoms can be in more than one state at once to do computational tasks

·         causes damage at a time in the future

·         an artificial environment that feels like a real environment created with computer hardware and software

·         a program written to cause the corruption of data

·         makes copies of itself and slows down a PC