worksheet05
Completion
Complete each statement.
1.A(n) ______is an input device that contains keys users press to enter data into a computer.
2.A(n) ______is a keyboard designed specifically for users that enjoy playing games on the computer.
3.A(n) ______is a handheld input device that can detect the presence of light.
4.______is the process of entering data by speaking into a microphone.
5.With ______, smart phone users can send graphics, pictures, video clips, and sound files, as well as short messages, to another smart phone.
6.A(n) ______allows users to take pictures and store the photographed images digitally, instead of on traditional film.
7.______is the process of capturing full-motion images into a computer and storing them on a storage medium such as a hard disk or DVD.
8.One type of adapter card that has a video capture port is a(n) ______card, which converts an analog video signal into a digital signal that a computer can use.
9.A(n) ______camera records video as digital signals instead of analog signals.
10.A(n) ______, also called a PC video camera, is a type of digital video camera that enables a home or small business user to capture video and still images, send e-mail messages with video attachments, add live images to instant messages, broadcast live images over the Internet, and make video telephone calls.
11.A(n) ______is a meeting between two or more geographically separated people who use a network or the Internet to transmit audio and video data.
12.A(n) ______is a device that uses a light source to read characters, marks, and codes and then converts them into digital data that a computer can process.
13.______is a technology that involves reading typewritten, computer-printed, or hand-printed characters from ordinary documents and translating the images into a form that the computer can process.
14.A(n) ______reads the magnetic stripe on the back of credit cards, entertainment cards, bank cards, and other similar cards.
15.______devices read text printed with magnetized ink.
16.A(n) ______converts MICR characters into a form the computer can process.
17.Most retail stores use a(n) ______to record purchases, process credit or debit cards, and update inventory.
18.______is the technology of authenticating a person’s identity by verifying a personal characteristic.
19.A(n) ______captures a live face image and compares it with a stored image to determine if the person is a legitimate user.
20.A(n) ______works similarly to an iris recognition system, but instead scans patterns of blood vessels in the back of the retina.
Matching
Identify the letter of the choice that best matches the phrase or definition.
a. / enhanced / k. / smart cardb. / pointer / l. / turnaround
c. / light pens / m. / digital
d. / digital pen / n. / Web cam
e. / MIDI / o. / resolution
f. / pixels / p. / sound card
g. / text / q. / continuous
h. / OCR / r. / trackball
i. / keyguard / s. / optical
j. / bar code / t. / toggle
____21.Most of today’s desktop computer keyboards are this kind of keyboard
____22.This kind of mouse does not have moving mechanical parts inside
____23.With a mouse, users control the movement of this
____24.What a PC must have to enter high-quality sound
____25.Software that conforms to this standard allows users to compose and edit music and many other sounds
____26.The higher this is, the better the image quality and the more expensive the camera
____27.The unit of measurement ppi measures the number of these in one inch of screen display
____28.Attracts Web site visitors by showing images that change regularly
____29.Once OCR software converts scanned images to this kind of file, the file can be edited
____30.Where biometric data is sometimes stored
worksheet05
Answer Section
COMPLETION
1.keyboard
2.gaming keyboard
3.light pen
4.Voice input
5.picture messaging
6.digital camera
7.Video input
8.video capture
9.digital video
DV
DV (digital video)
digital video (DV)
10.Web cam
11.video conference
12.optical reader
13.OCR
optical character recognition
OCR (optical character recognition)
optical character recognition (OCR)
14.magnetic stripe card reader
magstripe reader
15.MICR
Magnetic-ink character recognition
MICR (Magnetic-ink character recognition)
Magnetic-ink character recognition (MICR)
16.MICR reader
17.POS terminal
18.Biometrics
19.face recognition system
20.retinal scanner
MATCHING
21.A
22.S
23.B
24.P
25.E
26.O
27.F
28.N
29.G
30.K