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






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






3. 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






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






5. The process of producing an output carry in full- adder when both input bits are 1s.






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






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






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






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






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






12. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor






13. Characterized by ten states or values






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






15. In Boolean algebra - the AND operation






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






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

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






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






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






21. The current left after the total load current is subtracted from the total current into the circuit






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






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






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






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






26. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte






27. Data Communications equipment






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






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






30. 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






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

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32. In Boolean algebra - the OR operation






33. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






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






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






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






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






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






39. The actual current in a branch






40. An electrical instrument used to measure current






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






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






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






44. Burst extended data output dynamic random- access memory






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






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






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






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






49. Digital Signal Processor; a special type of microprocessor that processes data in real time






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