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






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






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






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






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






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






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






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






10. The number of protons in a nucleus






11. 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.






12. A bidirectional set of conductive paths on which data or instruction codes are transferred into a microprocessor or on which the result of an operation is sent out from the microprocessor






13. A logic circuit used to add two binary numbers






14. Characterized by ten states or values






15. 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






16. A binary digit - which can be either 1 or 0






17. A program that converts English- like mnemonics into machine code






18. A digital counter having ten states






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






20. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's






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






22. 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






23. 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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24. A software compiler language for SPLD programming; a type of hardware description language (HDL)






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






26. The process or sequence of operations carried out to program a target device






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

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28. A circuit with a complete current path






29. The unit of electrical current






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






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






32. The mathematics of logic circuits






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






34. An electrical instrument used to measure current






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






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






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






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






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






40. Having two opposites charge carriers within the transistor structure






41. 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






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






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






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






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






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






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






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






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






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