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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 type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.






2. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






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






4. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load






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






6. 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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7. A logic gate that produces a High output only when all of the inputs are HIGH






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






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






10. A series of bits describing a final design that is sent to the target device during programming






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






12. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






14. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction






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






16. One current path in a parallel circuit; a current path that connects two nodes






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






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






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






20. A device used to convert an analog signal to a sequence of digital codes






21. A circuit with a complete current path






22. The beginning address of a segment of memory






23. Characterized by ten states or values






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






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

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






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






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






30. The total number of data units(bits - nibbles - bytes - words) that a memory can store.






31. Data Communications equipment






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






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






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






35. Dual in - line memory module






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






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






38. The process of converting an analog signal to digital form






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






40. American Standard Code for Information Interchange; the most widely used alphanumeric code.






41. The maximum value of a voltage or current






42. The process of rippling an input carry to become the output carry in a full- adder when either or both of the input bits are 1's and the input carry is a 1






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






44. A group of eight bits






45. An electrical instrument used to measure current






46. Burst extended data output dynamic random- access memory






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






48. 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.






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






50. Having two opposites charge carriers within the transistor structure