aries answers unit 1(hardware)

Aries PC Maintenance and Repair: Hardware V8.0

Preview Exam Hardware – Unit 1

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Preview Exam Exam Bank: Aries PC Maintenance and Repair: Hardware V8.0 Exam Name: Unit 1 Master # Questions: 40

1. Which of the following is the basic purpose of a computer?

A. entertainment

B. academic research

C. processing raw data into useful information

D. communicating across the globe

Objective: 1.1 Define a computer's purpose and describe its function

2. Choose the list containing a computer's most fundamental operational

components that work together to complete tasks.

A. keyboard, mouse, monitor

B. keyboard, monitor, RAM

C. system unit, input devices, output devices

D. system unit, RAM, mouse

Objective: 1.2 List basic computer components and their functions

3. Which computer component processes and stores data and controls all

computer functions?

A. system unit

B. monitor

C. printer

D. keyboard

Objective: 1.3 Identify peripheral input and output devices

4. The computer's "brain," responsible for analyzing and processing information

and instructions, is the __________.

A. major peripheral device

B. system unit

C. RAM

D. CPU


5. The computer's "short term memory," responsible for remembering and

holding program instructions until they can be processed, is the __________.

A. major peripheral device

B. system unit

C. RAM

D. CPU


6. Any hardware device connected to and used with a computer is called a(n)

________ device.

A. output

B. input

C. augmentation

D. peripheral


7. Which of the following is NOT an input device?

A. scanner

B. capacitive keyboard

C. analog monitor

D. optical mouse


8. In terms of operation, the CPU is considered to be part of a computer's

_________.

A. system unit

B. input devices

C. output devices

D. None of the above


9. A ________ is an input device that reads printed information or pictures and

translates them into digital data the computer can understand.

A. printer

B. scanner

C. hard drive

D. floppy drive


10. Which peripheral device converts digital data to analog signals and analog

signals to digital data?

A. Hard drive

B. Speakers

C. Modem

D. Floppy drive

Objective: 2.1 Cite features of historic computing innovations

11. A computer is "programmable" because it can ________________.

A. follow instructions

B. receive and process data

C. process and output data

D. calculate mathematical equations


12. The earliest electric computers depended on which technology?

A. vacuum tubes

B. transistors

C. integrated circuits

D. microprocessors


13. Which technology replaced vacuum tubes, making computers faster,

cheaper, more powerful and less heat-producing?

A. transistors

B. resistors

C. integrated circuits

D. microprocessors


14. The most recent technological advance making today's computers the

fastest and most powerful yet is the _____________.

A. vacuum tube

B. transistor

C. integrated circuit

D. microprocessor

Objective: 2.2 Differentiate among first, second, third, and fourth generation computer features

15. Which of the following statements is true?

A. Binary is a number system based on two numbers: 1 and 0

B. Binary is a number system based on two numbers: 1 and 2

C. Binary is a number system based on two numbers: 1 and 10

D. Binary is a number system based on three numbers: 0, 1, and 2

Objective: 3.1 Define binary, octal, decimal, and hexadecimal numbering systems

16. Which of the following numbers means "electricity off" in binary code?

A. 0

B. 1

C. 10

D. 2

Objective: 3.2 Explain how binary code is used with computers

17. Which of the following numbers means "electricity on" in binary code?

A. 0

B. 1

C. 10

D. 2


18. Which of the following statements is true?

A. Eight bits equal one byte

B. Eight bytes equal one bit

C. Ten bits equal one byte

D. Ten bytes equal one bit


19. Which of the following is smallest?

A. kilobyte

B. megabyte

C. gigabyte

D. terabyte


20. Translating binary numbers into decimal numbers requires knowing the

binary digits' positions and _____________.

A. the hexadecimal number system

B. the octal number system

C. the power of 2

D. square roots

Objective: 3.3 Convert binary numbers to decimal numbers

21. Convert the following binary number to its decimal equivalent: 00101001

A. 114

B. 141

C. 14

D. 41


22. Which term best describes the flow of electrons through a circuit?

A. neutrons

B. protons

C. conductivity

D. electricity

Objective: 4.1 Define electricity, conductors, non-conductors, and semiconductors

23. Material treated to slow the progression of electricity through a circuit

without completely inhibiting the electricity is called a(n)

__________________________.

A. conductor

B. non-conductor

C. semiconductor

D. insulator

Objective: 4.1 Define electricity, conductors, non-conductors, and semiconductors

24. Which of the following is NOT an example of dynamic electricity?

A. shock when you touch a door knob after crossing a carpeted floor

B. power running to the washing machine

C. electric generator's power

D. energy required to power light bulbs

Objective: 4.2 Distinguish between static and dynamic electricity

25. Which measure indicates how much electricity is flowing through a circuit?

A. Amperes

B. Ohms

C. Volts

D. Watts

Objective: 4.3 Distinguish among amps, ohms, and watts

26. Which measure is determined by measuring the difference in electrical

pressure between two points?

A. amperes

B. ohms

C. volts

D. watts


27. Which measure is the circuit's resistance to the flow of electricity?

A. ampere

B. ohms

C. volts

D. watts


28. Choose the correct statement.

A. The graphic shows a resistor with variable resistance.

B. The graphic shows a resistor with a specified resistance value.

C. The graphic shows a capacitor used in power supplies and timing

circuits.

D. The graphic shows an integrated circuit chip constructed of semiconductive material.

Objective: 4.4 Describe features of fixed resistors, variable resistors, capacitors, and integrated circuit chips

29. What is the purpose of a capacitor?

A. storing electrical charges

B. enhancing electrical charges

C. restricting electrical charges

D. None of these


30. Which of the following is/are valid safety rules regarding electricity?

A. Avoid using old or corroded wires

B. Never stand on a damp or wet floor where wires are exposed

C. Never stand on a damp or wet floor where sources of electricity could

touch the floor

D. All of these

Objective: 4.5 Identify basic electrical safety precautions

31. Which code is used to match patterns of 1s and 0s with characters so that

computers can "understand" and record keyboard characters.

A. ASCII

B. RAM

C. CPU

D. RAMDAC

E. QWERTY


32. Which device is measured in ohms?

A. capacitor

B. resistor

C. CPU

D. None of these


33. What does the abbreviation RAM stand for?

A. Resistance Active Memory

B. Random Area Memory

C. Random Access Matrix

D. Random Access Memory


34. Which device is composed of millions of transistors?

A. vacuum tube

B. integrated circuit

C. microprocessor

D. None of these

Objective: 2.2 Differentiate among first, second, third, and fourth generation computer features

35. Dealing only in 1s and 0s, computers rely on the _______ system.

A. Binary

B. Decimal

C. Hexadecimal

D. Octal


36. Convert the decimal number 31 to binary.

A. 10011001

B. 11101101

C. 00100000

D. 00011111


37. Which analogy best describes the binary system?

A. turning the TV volume up and down

B. turning the TV on and off

C. changing the TV channel

D. changing the TV's brightness


38. What type of current does a computer use? This type of current can be

stored in a battery.

A. AC

B. RC

C. DC

D. BC


39. Wattage is equal to ____________.

A. Voltage / Resistance

B. Current x Resistance

C. Voltage / Current

D. Voltage x Current

E. Voltage x Resistance

Objective: 4.3 Distinguish among amps, ohms, and watts

40. What is the purpose of a resistor?

A. storing electrical charges

B. generating the flow of electricity

C. controlling the flow of electricity

D. resisting illegal attempts to alter data


aries answers unit 1(hardware)

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