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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. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






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






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






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






7. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






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






9. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.






10. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor






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






12. A group of eight bits






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






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






15. The actual current in a branch






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






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






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






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






21. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte






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






23. 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






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






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






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






27. A connection at the midpoint of a winding in a transformer






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






29. A type of magnetic tape format






30. Describes a number system with a base of ten






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






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






33. The beginning address of a segment of memory






34. In Boolean algebra - the AND operation






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






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






37. 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






38. 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






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






40. A digital counter having ten states






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

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42. A circuit with a complete current path






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

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44. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices






45. An electrical instrument used to measure current






46. The number of protons in a nucleus






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






48. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.






49. 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






50. The unit of electrical current