Chapter 19 Test - Craig Fisher | Library

MULTIPLE CHOICE
-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)

2

A CPU does everything EXCEPT

2

The task of converting AC to DC is performed by

2

Which of the following statements about vacuum tubes is true?

2

Which of the following statements about semiconductors is NOT true?

2

Which of the following statements about integrated circuits is true?

2

When you push a button on a remote control, you are sending a signal to a

2

The central processing unit in a computer is NOT responsible for

2

Which of the following statements about semiconductors is NOT true?

2

A vacuum tube will

2

Which of the following can convert alternating current to direct current?

2

Integrated circuits

2

What does a circuit board do?

2

Which of the following has properties that can change without a break between values?

2

Which of the following carries out a computer’s instructions?

2

A semiconductor conducts current better than which of the following?

2

Which of the following have made it possible for today’s computers to be so small?

2

In a CD player, which of the following shines on a CD from below?

2

Which of the following are carriers of radio and TV signals?

2

The bulb in a remote control that sends information to a TV is called what?

2

What does a transistor do?

2

Which of the following devices does NOT perform an output function?

2

Which element forms the basis for semiconductors?

2

Which of the following objects changes sound waves into an electric current in order to transmit information?

2

Which of the following is an example of input hardware?

2

Beams of electrons that shine on fluorecent materials are used in

 COMPLETION
-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A device that can be used as an amplifier or as a switch is called a(n) ______________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A device that allows electric current to travel in only one direction is called a(n) _____________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

Modern computers have a(n) _________________, which is a single semiconductor chip that controls and executes microcomputer’s instructions.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

The sounds you hear from a compact disc are a result of the sound being carried by a(n) _______________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A set of instructions or commands that tell a computer what to do is called ______________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A mouse and keyboard are examples of _______________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A(n) ________________ has properties that can change without a break between values.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

Semiconductors are used in electronic devices because their conductivity can be changed by ________________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A substance that conducts electric current better than an insulator but not as well as a conductor is a(n) _____________.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

____________ is the addition of impurities to a semiconductor to change its conductive properties.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A ____________ contains circuits that supply current to different parts of electronic devices.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A __________ can change current from AC to DC.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

A ___________ is used in amplifiers and switches.

Word Bank

circuit board(s)          diode(s)           transistor(s)           digital signal(s)          software           analog signal(s)           hardware      microprocessor(s)        semiconductor(s)         internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

_____________ of sounds are used to make vinyl records.

Word Bank

circuit board(s)          diode           transistor           digital signal           software           analog signal           hardware      microprocessor        semiconductor          internet               doping             light emitting diode          input hardware                        output hardware        integrated circuits          telephone          television          telegraph      speaker      mouse

2

____________ have discrete values of 0 and 1.

MATCHING
-Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)

2

An element or compound that conducts electric current better than an insulator does.

2

The addition of an impurity to a semiconductor to change the arrangement of electrons.

2

An electronic device that allows electric charge to move mainly in one direction.

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A component that amplifies current.

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A circuit whose components are formed on one semiconductor.

2

Anything that can be used to send information, such as sound or movement.

2

A type of signal whose properties can change continuously in a given range.

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A type of signal that can be represented as a sequence of separate values such as 0 and 1.

2

An electronic device that can accept data and instructions, follow the instructions, and output the results.

2

A single chip that controls and executes a computer’s instructions.

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