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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. In Boolean algebra - the OR operation






2. 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






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

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






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






6. American National Standards Institute






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






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






9. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






10. Having two opposites charge carriers within the transistor structure






11. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.






12. A group of eight bits






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






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






15. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.






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






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






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






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






20. Describes a number system with a base of ten






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






22. A type of inductor used to block or choke off high frequencies






23. In Boolean algebra - the AND operation






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






25. 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






26. 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.






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






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






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






30. An electrical instrument used to measure current






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






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






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






34. 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






35. Dual in - line memory module






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






37. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.






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






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






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






41. Information in numeric - alphabetic - or other form.






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






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






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






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






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






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






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






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






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






Can you answer 50 questions in 15 minutes?



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