Bn Ch 3 Chapter Test
- 1.A changing electric current that carries information is a(n)
- A.
Electronic signal
- B.
Diode
- C.
Transistor
- D.
Semiconductor
- 2.Can be represented by a series of numbers
- A.
Microprocessor
- B.
Digital signal
- C.
Read-only memory
- 3.Electrical conductivity can be controlled by adding impurities
- A.
Binary system
- B.
Diode
- C.
Semiconductor
- D.
Microprocessor
- 4.Allows current to flow in only one direction
- A.
Semiconductor
- B.
Transistor
- C.
Diode
- D.
Binary system
- 5.Can be used as an electronic switch or as an ampliphier
- A.
Diode
- B.
Transistor
- C.
Read-only memory
- D.
Random-access memory
- 6.Contains large numbers of solid-state components and is made from a semiconductor
- A.
Integrated circuit
- B.
Electronic signal
- C.
Digital signal
- D.
Computer hardware
- 7.Number system using two digits
- A.
Diode
- B.
Read-only memory
- C.
Analog signal
- D.
Binary system
- 8.Input devices, output devices, memory storage devices are all examples of
- A.
Computer hardware
- B.
Computer software
- C.
Integrated circuits
- D.
Microprocessor
- 9.Central Processing Unit (CPU) is a
- A.
Transistor
- B.
Microprocessor
- C.
Electronic signal
- D.
Digital signal
- 10.Temporary memory
- A.
RAM
- B.
ROM
- 11.Permenant memory
- A.
RAM
- B.
ROM
- 12.LIst of instructions for the computer
- A.
Transistor
- B.
Diode
- C.
Software
- D.
Hardware
- 13.Electronic signal that varies smoothly in time
- A.
Digital signal
- B.
Analog signal
- 14.A kind of tube used in old televisions instead of semiconductors
- A.
Analog
- B.
Solid state
- C.
Vacuum tube
- D.
Diode
- 15.Adding impurities to change the conductivity of semiconductors
- A.
Digitization
- B.
Doping
- C.
Integrated
- D.
Computer
- 16.A type of memory that stores computer information magnetically (and one that we no longer use)
- A.
Floppy disk
- B.
ROM
- C.
RAM
- 17.The instructions to start a computer are usually foiund in
- A.
Hard disk
- B.
RAM
- C.
ROM
- 18.A byte is
- A.
A 1 or 0
- B.
Off or on
- C.
8 bits
- 19.A semiconductor is a
- A.
Metalloid
- B.
Gold
- C.
Increases current
- 20.Places checkmarks on all of the input devices
- A.
Mouse
- B.
Keyboard
- C.
Monitor
- D.
Speakers
- E.
Scanner
- F.
Printer
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