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






2. A circuit that prevents loading of an input or output






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






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






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






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






8. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop






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






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






11. 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






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






13. 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






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






15. The actual current in a branch






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






17. The mathematics of logic circuits






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






19. 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






20. 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






21. The maximum value of a voltage or current






22. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






23. A combined coder and decoder






24. A program that converts English- like mnemonics into machine code






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






26. 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.






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






28. In Boolean algebra - the AND operation






29. 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.






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






31. Consisting of numerals - letters - and other characters






32. A group of eight bits






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






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






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






36. 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






37. Burst extended data output dynamic random- access memory






38. A type of IC package whose leads must pass through holes to the other side of a PC board






39. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously






40. 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






41. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.






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






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






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






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






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






47. The action of a circuit in which it accepts current into its output from a load






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






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






50. A resettable protective device used for interrupting execessive current in an electric circuit







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