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# 1.1 Part B Edwin

AND Gate Digital circuit that implements the AND operation. The output of this circuit is HIGH only if all of its inputs are HIGH. The AND gate circuit output was HIGH because it had all HIGH inputs
Capacitor An electrical device used to store electrical charge. The capacitor stored several watts of power.
Clock Digital signal in the form of a rectangular pulse train or a square wave. The clock told the time when it was powered.
Computational Logic Digital circuitry in which an output is derived from the combination of inputs, independent of the order in which they are applied. We used computational Logic to determine the correct combination.
Cycle A series of events that are regularly repeated in the same order. The life cycle repeats you are born, you live and you eventually pass.
Datasheet A printed specification giving details of the pin configuration, electrical properties, and mechanical profile of an electronic device. I used my datasheet to correctly interpret my specifications.
Digital Waveform A series of logic 1s and 0s plotted as a function of time. The digital waveform was 1 when the timer is on and when the circuit is off it's 0.
Dual In-Line Package (DIP) A very common IC package with two parallel rows of pins intended to be inserted into a socket of through holes drilled in a printed circuit board. We used the DIP to make our circuit.
Fuse A protective device in the current path that melts or breaks when current exceeds a predetermined maximum value. The fuse burnt up when I put in too much electrical current.
Large Scale Integration (LSI) An IC that contains circuitry equivalent to 100 gates or more. We used the LSI because of it's large quantity of gates.
Logic Gate An electronic circuit that performs a Boolean algebraic function. We used the Logic gate to see it's algebraic function.
Logic HIGH The higher of two voltages in a digital system with two logic levels. The digital circuit had very high HIGH LOGIC.
Logic LOW The lower of two voltages in a digital system with two logic levels. The digital circuit had very low LOW LOGIC.
Medium Scale Integration (LSI) An IC that contains circuitry equivalent to more than 11 and less than 100 gates. The SSL was used on the circuit because of it's decent amount of gates.
NOT Gate Also called an INVERTER gate or an inverting buffer. A logic gate that changes its input logic level to opposite state. The output of the NOT gate was 1 because the other output was 0
OR Gate Digital circuit that implements the OR operation. The output of this circuit is HIGH (logic level 1) if any or all of its inputs are HIGH. The output of the OR Gate was high because there was another output that equaled 1
Plastic Leaded Chip Carrier (PLCC) A square IC package with leads on all four sides designed for surface mounting on a circuit board. We used the PLCC to mount our IC on our board.
Schottky TTL TTL subfamily that uses the basic TTL standard circuit except that it uses a Schottky barrier code (SBD) connected between the base and the collector of each transistor for faster switching. We used the Schottky TTL for a faster switch.
Seven-Segment Display An array of seven independently controlled light-emitting diodes (LED) or liquid crystal display (LCD) elements, shaped like a figure-8, which can be used to display decimal digits and other characters by turning on the appropriate elements. I have a digital Seven-Segment Display clock
Sequential Logic Digital circuitry in which the output state of the circuit depends not only on the states of the inputs, but also on the sequence in which they reached their present states. We used sequential logic to determine the order of the RGN circuit.
Simulation Testing design function by specifying a set of inputs and observing the resultant outputs. Simulation is generally shown as a series of input and output waveforms. We simulated the circuit to make sure it would work.
Small Outline IC (SOIC) An IC package similar to a DIP, but smaller, which is designed for automatic placement and soldering on the surface of a circuit board. We soldered the SOIC to the board.
Small-Scale Integration (SSI) An integrated circuit having 12 or fewer gates in one package. The SSL was used on the circuit because of it's small amount of gates.
Solder Bridge The unwanted formation of a conductive path of solder between conductors. We soldered too much and it created a solder bridge.
Tinning The process of applying a thin coat of solder to materials prior to their being soldered; for example, application of a light coat of solder to the filaments of a conductor to hold the filaments in place prior to soldering the conductor. We tinned the soldering iron to better solder the circuit.
Toggle To switch from one effect, feature, or state to another. We toggled the switch on and off.
Transistor Term derived from "transfer resistor." Semiconductor device that can be used as an amplifier or as an electronic switch. The transistor amplified the electronic current.
Transistor-Transistor (TTL) A family of digital logic devices whose basic element is the bipolar junction transistor. The TTL was bipolar in it's function.
Truth Table A list of all possible input values to a digital circuit, listed in ascending binary order, and the output response for each input combination. We used the truth table to document all the possible combinations of our RGN circuit.
Printed Circuit Board Insulating board containing conductive tracks for circuit connections. We used the printed circuit board to make our circuit.
Created by: EdwinJD

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