Chapter 19 Electrical Signal Processing

An electrical signal that varies in on and off time.

• pulse width modulated

• alternating current voltage

• digital

• analog

A type of data storage that is lost or erased when the ignition power is switched off would be _______________.

• volatile memory

• keep alive memory

• programmable read only memory

• random access memory

Memory used for permanent storage of instructions and fixed values used by the ECM that control the microprocessor.

• read only memory

• volatile memory

• random access memory

• random access memory

The rate at which serial data is transmitted.

• baud rate

• pulse width modulated

• bit rate

• bites

Electrical signals that represent data in discrete, finite values. Digital signals are considered as binary meaning it is either on or off, yes or no, high or low, 0 or 1.

• digital signals

• analog signals

• duty cycle

• pulse width modulation

Memory that is not lost when power is removed or lost.

• non-volatile memory

• volatile memory

• read only memory

• random access memory

The unit for electrical frequency measurement, in cycles per second.

• hertz

• analog voltage

• pulse width modulation

• digital signal

The number of events or cycles that occur in a period, usually 1 second.

• frequency

• pulse width modulation

• analog signal

• digital signal

A temporary storage place for information that needs to be quickly accessed.

• random access memory

• read only memory

• volatile memory

• non-volatile memory

A branch of information technology that uses specialized applications for long-distance transmission of information to and from a vehicle.

• telematics

• closed band data

• low band data

• GPS tracking