computer Fundamentals

A fuel injector can be an input or an output component.

-True

-False

• True

• False

All OBDII vehicles use what type of read-only memory?

-ROM

-PROM

-EPROM

-EEPROM

• ROM

• PROM

• EPROM

• EEPROM

Analog signals from sensors are changed to digital signals for processing by the computer through which type of circuit?

-Digital

-Analog

-Analog-to-digital converter

-PROM

• Digital

• Analog

• Analog-to-Digital converter

• PROM

Computer speed is measured in ________.

-Baud rate

-Clock speed (Hz)

-Voltage

-Bytes

• Baud rate

• Clock speed (Hz)

• Voltage

• Bytes

The "brain" of the computer is the ________.

-PROM

-RAM

-CPU

-AD converter

• PROM

• RAM

• CPU

• AD converter

The SAE term for the vehicle computer is ________.

-PCM

-ECM

-ECU

-Controller

• PCM

• ECM

• ECU

• Controller

The four basic computer functions include ________.

-Writing, processing, printing, and remembering

-Input, processing, storage, and output

-Data gathering, processing, output, and evaluation

-Sensing, calculating, actuating, and processing

• Writing, processing, printing, and remembering

• Input, processing, storage, and output

• Data gathering, processing, output, and evaluation

• Sensing, calculating, actuating, and processing

The ratio of on time relative to the period of the complete cycle is the ________.

-Duty cycle

-Pulse width modulation

-Frequency

-Amplitude

• Duty cycle

• Pulse width modulation

• Frequency

• Amplitude

The throttle position sensor is an output component.

-True

-False

• True

• False

What two things can a vehicle computer actually perform (output)?

-Store and process information

-Turn something on or turn something off

-Calculate and vary temperature

-Control fuel and timing only

• Store and process information

• Turn something on or turn something off

• Calculate and vary temperature

• Control fuel and timing only