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






2. A combined coder and decoder






3. Having two opposites charge carriers within the transistor structure






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






5. 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






6. 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






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






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 logic gate that produces a High output only when all of the inputs are HIGH






10. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens






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






12. A circuit with a complete current path






13. 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






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






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






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






17. Describes a number system with a base of ten






18. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.






19. An electrical instrument used to measure current






20. The number of protons in a nucleus






21. A logic circuit used to add two binary numbers






22. A binary digit - which can be either 1 or 0






23. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)






24. 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






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






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. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






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






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






32. American wire gauge; a standardization based on wire diameter






33. 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






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






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






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






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






38. A method for internally testing a PLD based on the JTAG standard (IEEE std.)






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






40. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.






41. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.






42. 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






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






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






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






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

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


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






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






49. 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.






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