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






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






3. An electrical instrument used to measure current






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






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






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






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






8. 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






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






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






11. Burst extended data output dynamic random- access memory






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






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






14. A receiving device on a bus






15. Describes a number system with a base of ten






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






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






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

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






20. Data Communications equipment






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






22. 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






23. 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.






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






25. 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






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






27. 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






28. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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






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






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






32. A digital counter having ten states






33. 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.






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






35. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits






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






37. A circuit with a complete current path






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






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






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






41. Characterized by ten states or values






42. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






45. 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.






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






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






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






49. Data Terminal equipment






50. Dual in - line memory module







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