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






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






3. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






4. 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






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






6. In addition - the number to which the addend is added






7. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






8. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.






9. A type of magnetic tape format






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






11. A transformer in which the primary and secondary are in a single winding






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






13. American Standard Code for Information Interchange; the most widely used alphanumeric code.






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






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






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






17. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory






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






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






20. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices






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






22. Data Communications equipment






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






24. The normal level of a pulse waveform; the voltage level in the absence of a pulse.






25. Altera HDL; a nonstandard HDL






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






27. In Boolean algebra - the AND operation






28. The process of rippling an input carry to become the output carry in a full- adder when either or both of the input bits are 1's and the input carry is a 1






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






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






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






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






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






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






35. A digital counter having ten states






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






37. The mathematics of logic circuits






38. The number of protons in a nucleus






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






40. Data Terminal equipment






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






42. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.






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






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






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






46. Describes a number system with a base of ten






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






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






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






50. A group of eight bits