Chapter 18 Computer and Network Fundamentals

Computer speed is measured in ________. Select one: a. Voltage b. Baud rate c. Clock speed (Hz) d. Bytes

c. Clock speed (Hz)

What unit of electricity is used as a signal for a computer? Select one: a. Watt b. Volt c. Ohm d. Ampere

b. Volt

All OBDII vehicles use what type of read-only memory? Select one: a. EEPROM b. ROM c. EPROM d. PROM

a. EEPROM

The four basic computer functions include ________. Select one: a. Input, processing, storage, and output b. Data gathering, processing, output, and evaluation c. Sensing, calculating, actuating, and processing d. Writing, processing, printing, and remembering

a. Input, processing, storage, and output

Analog signals from sensors are changed to digital signals for processing by the computer through which type of circuit? Select one: a. Digital b. Analog-to-digital converter c. PROM d. Analog

b. Analog-to-digital converter

The SAE term for the vehicle computer is ________. Select one: a. ECM b. PCM c. Controller d. ECU

b. PCM

Which item is a computer input sensor? Select one: a. Throttle position angle b. Engine coolant temperature c. RPM d. All of the above

d. All of the above

Which item is a computer output device? Select one: a. Transmission shift solenoid b. Fuel injector c. Evaporative emission control solenoid d. All of the above

d. All of the above

The "brain" of the computer is the ________. Select one: a. RAM b. AD converter c. PROM d. CPU

d. CPU

What two things can a vehicle computer actually perform (output)? Select one: a. Store and process information b. Control fuel and timing only c. Calculate and vary temperature d. Turn something on or turn something off

d. Turn something on or turn something off