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






2. Burst extended data output dynamic random- access memory






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






4. A series of bits describing a final design that is sent to the target device during programming






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






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






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






8. In Boolean algebra - the OR operation






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






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






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






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






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






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






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






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






17. 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.






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






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






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






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






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






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






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






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






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






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






28. A digital counter having ten states






29. 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






30. The number of protons in a nucleus






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






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. American National Standards Institute






34. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.






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






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






37. 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






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






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






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






41. 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






42. 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






43. 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






44. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence






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






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

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47. 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.






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






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






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