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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 unit of the cross - sectional area of a wire.






2. A combined coder and decoder






3. Data Terminal equipment






4. A method for internally testing a PLD based on the JTAG standard (IEEE std.)






5. 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.






6. A circuit with a complete current path






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






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






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






10. Characterized by ten states or values






11. 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






12. A digital counter having ten states






13. The number of protons in a nucleus






14. 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






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






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






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






18. 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






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






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






21. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor






22. The maximum value of a voltage or current






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






24. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.






25. A semiconductor device that conducts current in only one direction






26. An electrical instrument used to measure current






27. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






30. A group of eight bits






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






32. Describes a number system with a base of ten






33. 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.


34. 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






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






36. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






37. In Boolean algebra - the OR operation






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






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






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






41. American National Standards Institute






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






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






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






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






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






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






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






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






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