Ch 73 Computer Fundamentals

What unit of electricity is used as a signal for a computer? (a)  

• Ohm

• Volt
• Ampere

• Watt

The four basic computer functions include .

• sensing, calculating, actuating, and processing

• input, processing, storage, and output
• writing, processing, printing, and remembering

• data gathering, processing, output, and evaluation

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

• ROM
• PROM

• EEPROM

• EPROM

The "brain" of the computer is the .

• AD converter

• RAM

• CPU
• PROM

Computer speed is measured in .

• clock speed (Hz)
• bytes

• voltage

• baud rate

Which item is a computer input sensor?

• RPM

• Throttle position angle

• Engine coolant temperature

• All of the above

Which item is a computer output device?

• Fuel injector

• Evaporative emission control solenoid

• Transmission shift solenoid

• All of the above

The SAE term for the vehicle computer is .

• PCM
• ECM

• ECU

• Controller

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

• Calculate and vary temperature

• Turn something on and off

• Control fuel and timing

• Store and process information

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

• Analog-to-digital converter

• Digital

• Analog

• PROM