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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. The unit of electrical current






2. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.






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






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






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






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






7. A logic circuit used to add two binary numbers






8. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB






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






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






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






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






13. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.






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






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






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






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






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






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






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






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






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






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






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






25. 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






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






27. Data Terminal equipment






28. A combined coder and decoder






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

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






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






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






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






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






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






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






37. The number of protons in a nucleus






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






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






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






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






42. 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






43. Dual in - line memory module






44. 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






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






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






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






48. One of the three regions in a bipolar junction transistor






49. Digital Signal Processor; a special type of microprocessor that processes data in real time






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