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






2. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.






3. A circuit with a complete current path






4. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions






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






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






7. Having two directions. the stored data can be shifted right or left






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






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






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






11. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices






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






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






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






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






16. The interval of time occupied by a single bit in a sequence of bits; the period of the clock






17. 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






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






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






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






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






22. A type of counter in which each stage is clocked from the output of the preceding stage.






23. 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.






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






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

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26. Sum of all currents entering a node is equal to the sum of all currents leaving the same node

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






28. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points






29. A receiving device on a bus






30. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device






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






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






33. American National Standards Institute






34. A group of eight bits






35. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






36. The mathematics of logic circuits






37. The actual current in a branch






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






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






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






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






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






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






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






45. The normal level of a pulse waveform; the voltage level in the absence of a pulse.






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






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






48. Burst extended data output dynamic random- access memory






49. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens






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







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