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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 receiving device on a bus






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






3. To decrease the binary state of a counter by one






4. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.






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






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






7. Burst extended data output dynamic random- access memory






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






9. A circuit with a complete current path






10. A type of magnetic tape format






11. The time from the application of a valid memory address to the appearance of valid output data






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. A logic circuit used to add two binary numbers






14. The mathematics of logic circuits






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






16. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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17. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop






18. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






20. An array of AND gates consisting of a matrix of programmable interconnection






21. A condition where all the load currents are equal and the neutral current is zero






22. A semiconductor device that conducts current in only one direction






23. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.






24. The maximum value of a voltage or current






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






26. A digital counter having ten states






27. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage






28. The process of producing an output carry in full- adder when both input bits are 1s.






29. Altera HDL; a nonstandard HDL






30. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.






31. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.






32. 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.






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






34. Characteristic of cells in a Karnaugh map in which there is a single- variable change from one cell to another cell next to it on any of its four sides






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






36. The number of protons in a nucleus






37. The unit of electrical current






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






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






40. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






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






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






43. An electrical instrument used to measure current






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

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45. In Boolean algebra - the AND operation






46. In addition - the number that is added to another number called the augend






47. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






48. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic






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






50. One of the three regions in a bipolar junction transistor