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






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






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






4. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction






5. A digital counter having ten states






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






7. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






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






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






10. 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






11. 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.






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






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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. Characterized by ten states or values






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






18. A group of eight bits






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






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






21. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.






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






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






24. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.






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






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






27. 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.






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






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






30. The number of protons in a nucleus






31. Data Communications equipment






32. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop






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






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






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






36. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points






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






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






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






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






41. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.






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






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






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






45. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product






46. A logic circuit used to add two binary numbers






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






48. The beginning address of a segment of memory






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






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