Test your basic knowledge |

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






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






3. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device






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






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






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






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






8. Data Communications equipment






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






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






11. The digit generated when the sum of two binary digits exceeds 1






12. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






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






14. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.






15. The mathematics of logic circuits






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






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






18. Describes a number system with a base of ten






19. The total number of data units(bits - nibbles - bytes - words) that a memory can store.






20. The beginning address of a segment of memory






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






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






23. 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.






24. American National Standards Institute






25. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






28. A logic circuit used to add two binary numbers






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






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






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






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






33. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification


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


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






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






37. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control






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






39. A combined coder and decoder






40. 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.






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






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






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






44. 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






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






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






47. 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






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






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






50. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents