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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 inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa






2. In Boolean algebra - the AND operation






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






4. The beginning address of a segment of memory






5. American National Standards Institute






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






7. The number of protons in a nucleus






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






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






10. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs






11. 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






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






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






14. Burst extended data output dynamic random- access memory






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






16. A bridge circuit that is in the balanced state as indicated by 0 V across the output.






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






18. A unit of the cross - sectional area of a wire.






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






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






21. In a division operation the quantity that is being divided






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






23. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.






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






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






26. 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.






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






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






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






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






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






32. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB






33. 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






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






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






36. An electrical instrument used to measure current






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






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






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






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






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






42. 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.






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

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






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






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






47. A digital counter having ten states






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






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






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







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