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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. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits






2. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






4. Characterized by ten states or values






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






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






7. Consisting of numerals - letters - and other characters






8. 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






9. American National Standards Institute






10. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.






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






12. Describes a number system with a base of ten






13. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






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






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






16. 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






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






18. A circuit with a complete current path






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






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






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






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






23. Data Communications equipment






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






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






26. Burst extended data output dynamic random- access memory






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






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






29. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.






30. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.






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. The process of converting an analog signal to digital form






33. 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






34. 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.






35. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product






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






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






38. An electrical instrument used to measure current






39. 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.






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






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






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






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






44. 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






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






46. A document that specifies parameter values and operating conditions for an integrated circuits or other device






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






48. The process that prevents two sources from using a bus at the same time






49. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function






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