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






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






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






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






5. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions






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






7. A combined coder and decoder






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






9. The maximum value of a voltage or current






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






11. A group of eight bits






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






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






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






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






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






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






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






19. 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






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






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






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






24. Describes a number system with a base of ten






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






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






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






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

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






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






31. 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






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






33. Altera HDL; a nonstandard HDL






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






35. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's






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






37. An electrical instrument used to measure current






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






39. 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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40. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory






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






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






43. Data Communications equipment






44. 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






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






46. In Boolean algebra - the AND operation






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






48. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






49. A method of analog- to- digital conversion using a 1- bit quantization process






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