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Digital Fundamentals

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor






2. The digit generated when the sum of two binary digits exceeds 1






3. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.






4. Consisting of numerals - letters - and other characters






5. A type of IC package whose leads must pass through holes to the other side of a PC board






6. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program






7. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification

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8. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference






9. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents






10. One of the three regions in a bipolar Junction transistor(North junction of NpN)






11. A class of integrated logic circuits that is implemented with a type of field effect transistor






12. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.






13. Having two opposites charge carriers within the transistor structure






14. Data Communications equipment






15. The process or sequence of operations carried out to program a target device






16. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).






17. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)






18. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor






19. Transistor-Transistor Logic and is implemented with bipolar junction transistors






20. A transformer in which the primary and secondary are in a single winding






21. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.






22. Characterized by ten states or values






23. A connection at the midpoint of a winding in a transformer






24. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative






25. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.






26. Sum of all the voltage drops in series equals to the source voltage

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27. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory






28. In Boolean algebra - the OR operation






29. Describes a number system with a base of ten






30. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.






31. In addition - the number to which the addend is added






32. A group of eight bits






33. A method of analog- to- digital conversion using a 1- bit quantization process






34. Burst extended data output dynamic random- access memory






35. Digital audio tape; a type of magnetic tape format






36. A set of interconnections that interface one or more devices based on a standardized specification






37. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed






38. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






39. The mathematics of logic circuits






40. A type of inductor used to block or choke off high frequencies






41. A circuit with a complete current path






42. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus






43. A resettable protective device used for interrupting execessive current in an electric circuit






44. The unit of electrical current






45. The current left after the total load current is subtracted from the total current into the circuit






46. The smallest particle of an element possessing the unique characteristics of that element.






47. A combined coder and decoder






48. The action of a circuit in which it accepts current into its output from a load






49. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.






50. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously