Lesson 1 - Computers and Computer Systems

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

____	1.	Special-purpose computers are used mostly to control something else, such as a dishwasher or airport radar system.

____	2.	Fifty years ago, only a handful of people were computer programmers.

____	3.	The components that the computer uses to process data are contained within the hard drive.

____	4.	The motherboard is also called the circuit board.

____	5.	The motherboard is housed on a tiny silicon chip that contains millions of switches and pathways that help your computer make important decisions.

____	6.	The ALU can execute complex tasks, such as what a video game uses to determine what appears on your screen.

____	7.	As electricity travels through processor pathways, it turns switches on and off. The absence of electricity represents a 0.

____	8.	Fetching is the process of translating the instruction into signals the computer can execute.

____	9.	ROM chips are nonvolatile.

____	10.	A network drive can be a hard drive or a tape drive located on a computer other than the user’s local system.

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

____	1.	Which of the following is NOT true about the earliest computers?
a.	They had less processing power than an iPhone.	c.	They were so expensive only major companies or government organizations could afford them.	
b.	They occupied small buildings or entire city blocks.	d.	They were first developed in the 1970s.	

____	2.	Data is ____.
a.	text, numbers, sound, images, or video.	c.	output	
b.	information	d.	software	

____	3.	The first step in the information processing cycle is ____.
a.	outputs information	c.	inputs data	
b.	stores data and information	d.	processes data	

____	4.	A computer performs operations use ____ operators such as AND, OR, and NOT.
a.	arithmetic	c.	logical	
b.	simple	d.	analytical	

____	5.	A computer that delivers Web pages to browsers and other files to applications via the HTTP protocol is considers a  ____ server.
a.	file	c.	database	
b.	Web	d.	mobile	

____	6.	The system case includes all of the following EXCEPT ____.
a.	processor	c.	video card	
b.	monitor	d.	memory	

____	7.	The above figure shows an example of a(n) ____.
a.	CPU	c.	system unit	
b.	circuit board	d.	motherboard	

____	8.	CPU stands for Central ____ Unit.
a.	Processing	c.	Port	
b.	Programming	d.	Precision	

____	9.	____ is a set of special instructions that control the activities of a computer.
a.	A program	c.	CPU	
b.	Software	d.	Both a. and b.	

____	10.	The above figure shows an example of a(n) ____.
a.	circuit board	c.	microprocessor	
b.	motherboard	d.	expansion port	

____	11.	Which of the following is NOT true about microprocessors?
a.	A dual-core processor is a single chip that contains two separate processors.	c.	A multicore processor is an expansion that provides for more than two separate processors.	
b.	Microprocessor speed is generally measured in megahertz (MHz).	d.	The switches on a microprocessor control the flow of electricity.	

____	12.	Java, COBOL, and C++ are all examples of ____ languages.
a.	programming	c.	basic	
b.	machine	d.	binary	

____	13.	A ____ is approximately a billion bytes.
a.	kilobyte	c.	gigabyte	
b.	megabyte	d.	terabyte	

____	14.	RAM stands for ____ Access Memory
a.	Remote	c.	Random	
b.	Return	d.	Regular	

Gemma starts her computer and begins working on a new Microsoft Word document.

____	15.	When Gemma starts Microsoft Word, the computer loads the word-processing instructions into ____.
a.	RAM	c.	the operating system	
b.	ROM	d.	the motherboard	

____	16.	As Gemma works, the amount of time it takes the CPU to execute an instruction such as printing her document, and store the results in RAM is called the ____ cycle.
a.	machine	c.	processing	
b.	instruction	d.	execution	

Tarun is researching various storage devices.

____	17.	Tarun learns that ____ devices are nonvolatile, removable medium that use integrated circuits.
a.	optical	c.	magnetic	
b.	solid state	d.	Blu-ray	

____	18.	As he learns how to care for his storage media, Tarun discovers that all of the following are true EXCEPT ____.
a.	He should keep media away from magnetic fields.	c.	He should only remove the media from a drive when the drive indicator light is on.	
b.	He should avoid extreme temperatures.	d.	He should remove his media from drives when not in use.	

____	19.	Key drive, thumb drive, and jump drive are all other names for ____.
a.	hard drives	c.	memory sticks	
b.	USB flash drives	d.	SD cards	

____	20.	____ discs are optical storage media that provide more than five times the storage capacity of traditional DVDs.
a.	CD-ROM	c.	Solid state	
b.	DVD-R	d.	Blu-ray	

Lesson 1 - Computers and Computer Systems
Answer Section

TRUE/FALSE

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

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

	3.	ANS:	F	PTS:	1	REF:	Mod 1-11

	4.	ANS:	F	PTS:	1	REF:	Mod 1-12

	5.	ANS:	F	PTS:	1	REF:	Mod 1-12

	6.	ANS:	T	PTS:	1	REF:	Mod 1-13

	7.	ANS:	T	PTS:	1	REF:	Mod 1-14

	8.	ANS:	F	PTS:	1	REF:	Mod 1-17

	9.	ANS:	T	PTS:	1	REF:	Mod 1-18

	10.	ANS:	T	PTS:	1	REF:	Mod 1-23

MULTIPLE CHOICE

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

	2.	ANS:	A	PTS:	1	REF:	Mod 1-6

	3.	ANS:	C	PTS:	1	REF:	Mod 1-6

	4.	ANS:	C	PTS:	1	REF:	Mod 1-7

	5.	ANS:	B	PTS:	1	REF:	Mod 1-7

	6.	ANS:	B	PTS:	1	REF:	Mod 1-11

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

	8.	ANS:	A	PTS:	1	REF:	Mod 1-12

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

	10.	ANS:	C	PTS:	1	REF:	Mod 1-13

	11.	ANS:	B	PTS:	1	REF:	Mod 1-13

	12.	ANS:	A	PTS:	1	REF:	Mod 1-13

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

	14.	ANS:	C	PTS:	1	REF:	Mod 1-16

	15.	ANS:	A	PTS:	1	REF:	Mod 1-16	TOP:	Critical Thinking

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

	17.	ANS:	B	PTS:	1	REF:	Mod 1-22	TOP:	Critical Thinking

	18.	ANS:	C	PTS:	1	REF:	Mod 1-23	TOP:	Critical Thinking

	19.	ANS:	B	PTS:	1	REF:	Mod 1-22

	20.	ANS:	D	PTS:	1	REF:	Mod 1-21