CSE 120 Lecture 01

a device that selects one of several analog or digital input signals and forwards the selected input into a single line

multiplexers are _______ in concept

abbreviation for multiplexer

if a multiplexer has four input signals, its ratio can be described as _______

abbreviation for decoder

does the opposite of a multiplexer

can be used to investigate and simplify logic functions

since implementation of algebraic formulas will be done with electronic circuits, _______ of logic functions is important

a good method of minimizing logic functions

logic will be used to implement computer systems dependent on _______ arithmetic

understanding _______ systems is an important part of this

computers will have to represent _______ and _______ numbers, and do mathematical _______ like addition and subtraction of numbers

systems can be synced together using a _______ _______

water pressure is a similar concept to _______

water flow is a similar concept to _______

a pipe is a similar concept to a _______

friction is a similar concept to _______

a water wheel is a similar concept to _______ _______

pictorial representations of physical wires and elements

these particles have the same charge

electrons hold a _______ charge and they _______ each other

electrons are attracted to _______ charges

electrons come out of the _______ terminal

electrons move through the wire toward the _______ charge and away from the _______ charge

holds an electrical potential

an example of a power source

the relationship between the electrical potential and the resistance offered by the battery and the wire

the equation for Ohm's Law

character that represents electric potential

character that represents positive current measured in dq/dt

character that represents resistance measured in Ohms

goes in the opposite direction of negative current flow

represents the potential in volts

represents the current

the rate of positive charge transferred per unit time

represents the resistance of the wire

measured in Ohms; this is never zero, but in most cases we do not account for wire resistance

approximate voltage of an AA cell

electrons move out of the _______ end of the battery

this is determined by positive charge flow

some say that the confusion regarding how current is determined can be attributed to _______ _______ for misidentifying the positive and negative terminals of a battery

positive current is the direction of positive current flow, but _______ are actually flowing in the opposite direction

there is no difference between a positive current and a _______ _______ in the other direction

this stops the flow of electrons

no more electrons will exit the battery if the circuit is _______

electrons flow through the wire from the _______ power terminal as long as they can make it to the _______ terminal through the circuit

for electron flow to occur, the circuit must be _______, referred to as a _______ circuit

a circuit that produces an output signal only when signals are received simultaneously through all input connections

a circuit that gives an output signal if there is a signal on any of its inputs

implementation of logic functions using electrical circuits has been done in a number of ways and these methods have been _______ over time

refinements have been to increase _______, reduce _______, increase _______, and decrease _______ _______

early implementations were _______ and _______ with relatively high _______

the design of early implementations was _______ with many realities of the modern world

power is dissipated as _______, which has to be pulled out of any system

as time went on, speed _______ while reducing _______ _______ by changing technology

a digital logic gate that gives a true output when the number of true inputs is odd