Lesson 2 - Input, Output, and Processing

True/False
Indicate whether the statement is true or false.

____	1.	The NIK keyboard is flexible, can be rolled up and put into a briefcase, and even washed with soap and water or a spray cleaner.

____	2.	A laser virtual keyboard easily connects to any PC or smart phone.

____	3.	The most common type of pointing device for PCs is the keyboard.

____	4.	CRT panels produce an image by manipulating light within a layer of liquid crystal cells.

____	5.	Print quality is measured in ppm.

____	6.	Webcams are video-capturing cameras connected to computers or networks that display images through the World Wide Web.

____	7.	OCR scanners use a light source to read characters, marks, and codes.

____	8.	Privacy and civil liberties advocates are among the strongest supporters of biometric devices.

____	9.	The amount of ROM helps to speed up the processing cycle and to enhance the computer’s performance.

____	10.	A computer virus is a small software program that spreads from one computer to another and interferes with the operation of the computers.

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____	1.	Which of the following is NOT a type of keyboard?
a.	ergonomic	c.	optical	
b.	wireless	d.	security	

____	2.	Sensors inside a(n) ____ mouse determine the direction and distance of the movement.
a.	mechanical	c.	wireless	
b.	optical	d.	trackball	

____	3.	A(n) ____ mouse uses a laser to detect the mouse’s movement.
a.	mechanical	c.	wireless	
b.	optical	d.	trackball	

____	4.	Which of the following is NOT true about mice?
a.	Most mice have two or three buttons.	
b.	Generally, clicking the right mouse button displays a shortcut menu.	
c.	Double-clicking selects a paragraph of text.	
d.	You use the left mouse button for most operations.	

____	5.	A(n) ____ is a pressure-sensitive pointing device on a notebook computer that looks like a pencil eraser.
a.	touchpoint	c.	trackball	
b.	touchpad	d.	pointing stick	

____	6.	Which of the following is NOT true about monitors?
a.	They are a display device typical of desktop computers.	
b.	Screen output is called hard copy.	
c.	The CRT was one of the earliest types of computer monitors.	
d.	LCD and gas plasma are types of flat-panel monitors.	

____	7.	Laser printers and inkjet printers are examples of ____ printers.
a.	nonimpact	c.	obsolete	
b.	impact	d.	specialized	

____	8.	Which of the following is NOT a storage device for digital cameras?
a.	Memory stick	
b.	USB key	
c.	Mini-discs	
d.	All of the above are storage devices for digital cameras.	

____	9.	A(n) ____ scanner reads encoded information on credit cards.
a.	image	c.	magnetic	
b.	bar code	d.	OCR	

____	10.	Which of the following is NOT true about devices such as the one in the above figure?
a.	You use a stylus to point to objects.	
b.	It reacts to direct touches within the display area.	
c.	You can find these screens in airports, banks, and fast-food restaurants.	
d.	Many mobile devices also have these types of screens.	

____	11.	Which of the following is NOT true about biometric devices?
a.	They are used for security.	
b.	They consist of a reader or scanning device and software that converts the information into digital format.	
c.	A common technique is to scan the retina or iris.	
d.	All of the above are true.	

____	12.	Which of the following is NOT true about dot matrix printers?
a.	They transfer ink to the paper by striking a ribbon with pins.	
b.	The speed is measured in characters per second.	
c.	They are seldom used today.	
d.	The mechanism that does the printing is called the plotter.	

____	13.	Which of the following is NOT an output device for the physically challenged?
a.	Screen magnifiers	c.	Voice synthesizers	
b.	Screen readers	d.	Joystick computer mouse	

____	14.	The bottom hole in the figure above shows a(n) ____.
a.	FireWire port	c.	USB port	
b.	expansion slot	d.	SCSI	

____	15.	A(n) ____ can connect up to 127 peripheral devices with a single connector and transfer data at rates of up to 200 million bits per second.
a.	USB port	c.	FireWire	
b.	expansion slot	d.	IEEE 1394 bus	

____	16.	A(n) ____ is also called an adapter card, add-in, or add-on.
a.	USB port	c.	FireWire	
b.	expansion board	d.	IEEE 1394 bus	

Carolina is looking to buy a new computer, and is researching input devices.

____	17.	Carolina learns that a(n) ____ mouse uses infrared waves to communicate with the computer.
a.	optical	c.	radio frequency	
b.	optomechanical	d.	wireless	

____	18.	Carolina learns that ____ a mouse can be used to highlight a selected portion of text.
a.	dragging	c.	right-clicking	
b.	pointing	d.	clicking	

Evan is working on a presentation to give to his computer club about ports and connectors.

____	19.	Evan tells his club that ____ is a special-purpose port used as a standard interface for connecting peripherals such as disk drives and printers.
a.	FireWire	c.	SCSI	
b.	USB	d.	IrDA	

____	20.	Evan tells his club that ____ is a wireless standard that allows data to be transferred between devices using infrared light.
a.	FireWire	c.	SCSI	
b.	IrDA	d.	USB	

Lesson 2 - Input, Output, and Processing
Answer Section

TRUE/FALSE

	1.	ANS:	T	PTS:	1	REF:	Mod 1-31

	2.	ANS:	T	PTS:	1	REF:	Mod 1-32

	3.	ANS:	F	PTS:	1	REF:	Mod 1-32

	4.	ANS:	F	PTS:	1	REF:	Mod 1-35

	5.	ANS:	F	PTS:	1	REF:	Mod 1-36

	6.	ANS:	T	PTS:	1	REF:	Mod 1-39

	7.	ANS:	T	PTS:	1	REF:	Mod 1-40

	8.	ANS:	F	PTS:	1	REF:	Mod 1-43

	9.	ANS:	F	PTS:	1	REF:	Mod 1-50

	10.	ANS:	T	PTS:	1	REF:	Mod 1-53

MULTIPLE CHOICE

	1.	ANS:	C	PTS:	1	REF:	Mod 1-31

	2.	ANS:	A	PTS:	1	REF:	Mod 1-32

	3.	ANS:	B	PTS:	1	REF:	Mod 1-32

	4.	ANS:	C	PTS:	1	REF:	Mod 1-33

	5.	ANS:	D	PTS:	1	REF:	Mod 1-34

	6.	ANS:	B	PTS:	1	REF:	Mod 1-35

	7.	ANS:	A	PTS:	1	REF:	Mod 1-36

	8.	ANS:	D	PTS:	1	REF:	Mod 1-39

	9.	ANS:	C	PTS:	1	REF:	Mod 1-40

	10.	ANS:	A	PTS:	1	REF:	Mod 1-41

	11.	ANS:	C	PTS:	1	REF:	Mod 1-43

	12.	ANS:	D	PTS:	1	REF:	Mod 1-45

	13.	ANS:	D	PTS:	1	REF:	Mod 1-46 

	14.	ANS:	C	PTS:	1	REF:	Mod 1-47

	15.	ANS:	A	PTS:	1	REF:	Mod 1-47

	16.	ANS:	B	PTS:	1	REF:	Mod 1-48

	17.	ANS:	D	PTS:	1	REF:	Mod 1-32	TOP:	Critical Thinking

	18.	ANS:	A	PTS:	1	REF:	Mod 1-33	TOP:	Critical Thinking

	19.	ANS:	C	PTS:	1	REF:	Mod 1-47	TOP:	Critical Thinking

	20.	ANS:	B	PTS:	1	REF:	Mod 1-48	TOP:	Critical Thinking