Computer

Front 1

Vocabulary Words for Chapter 11
1.ANTI-SPAM PROGRAM
2.Authentication
3.Biometric device
4.Computer crime
5.Cookie
6.Decrypt
7.Encryption
8.Firewall
9.Hacker
10.Identification
11.Recovery disk
12.Restore
13.Spam
14.Spike
15.Virus hoax
16.Trojan horse
17.worm

Back 1

Answers for chapter 11
1.a spam filter is a program that is used to detect unsolicited and unwanted email and prevent those messages from getting to a user’s inbox.
2.the process of determining whether someone or something is, in fact, who or what it is declared to be.
3.identifies persons seeking access to computing systems by determining their physical characteristics through fingerprints, voice recognition, retina patterns, pictures, weight, or other means.
4.encompasses unauthorized or illegal activities perpetrated via computer as well as the theft of computers and other technological hardware.
5.collection of information, usually including a username and the current date and time, stored on the local computer of a person using the World Wide Web, used chiefly by websites to identify users who have previously registered or visited the site.
6.to convert secretly coded data (encrypted data) back into its original form.
7.- the coding of a clear text message by a transmitting unit so as to preven

Front 2

1.Cursor
2.Barcode
3.Ergonomics
4.Optical mouse
5.Touchpad
6.Pixel
7.Voice input
8.Pointing device
9.Resolution
10.Light pen
11.Input device
12.Stylus
13.Pointer
14.Optical mark recognition
15.Touch screen
16.Num key

Back 2

1.a symbol on the screen, usually a blinking vertical bar, that indicates where the next character you type will be displayed.
2.an identification code that consists either of a set of vertical lines and spaces of different widths, or a two dimensional pattern of dots, squares, and other objects.
3. the science of incorporating comfort, efficiency, and safety into the design of the workplace.
4.mouse that uses devices, such as optical sensors or lasers, that emit and sense light to detect the mouse’s movement.
5.small, flat, retangular pointing device that is sensitive to pressure and motion.
6.the smallest element in an electronic image.
7.process of entering data by speaking into a microphone.
8.input device that allows a user to control a pointer on the screen.
9.the number of horizontal and vertical pixel in a display device
10.handheld input device that can detect the presence of light.
11.any hardware component that allows users to enter data and instructions into a computer.
12.small meta