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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. The application of a dc voltage to an electronic device to produce a desired mode of operation






2. Having two stable states. Flip- flops and latches are bistable multivibrators.






3. A programming language that uses English like words and has a one- to- one correspondence to machine language






4. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.






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






6. 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






7. 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.






8. Altera HDL; a nonstandard HDL






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






10. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte






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






12. In Boolean algebra - the AND operation






13. 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.






14. Information in numeric - alphabetic - or other form.






15. The maximum value of a voltage or current






16. Having two opposites charge carriers within the transistor structure






17. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor






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






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






20. The number of protons in a nucleus






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






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






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

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24. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.






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






26. An expression of variables and operators used to express the operation of a logic circuit






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






28. The beginning address of a segment of memory






29. Data Communications equipment






30. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system






31. The unit of electrical current






32. The ability of a capacitor to store electrical charge.






33. American National Standards Institute






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






35. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent






36. The ratio of pulse width to period expressed as a percentage






37. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function






38. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.






39. The mathematics of logic circuits






40. A circuit that prevents loading of an input or output






41. American wire gauge; a standardization based on wire diameter






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






43. A logic circuit used to add two binary numbers






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






45. 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.






46. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.






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






48. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






50. A digital circuit device that converts coded information into another (familiar) or noncoded form