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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 PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program






2. A condition where all the load currents are equal and the neutral current is zero






3. In addition - the number that is added to another number called the augend






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






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






6. American National Standards Institute






7. Consisting of numerals - letters - and other characters






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






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






10. In Boolean algebra - the AND operation






11. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.






12. Data Terminal equipment






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






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






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






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






17. A circuit with a complete current path






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






19. A combined coder and decoder






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






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






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






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






24. Data Communications equipment






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






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






27. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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






29. Dual in - line memory module






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






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






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






33. In Boolean algebra - the OR operation






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






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






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






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






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






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






40. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.






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






42. 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






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






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






45. 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






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






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






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






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






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