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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. Burst extended data output dynamic random- access memory






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






3. Describes a number system with a base of ten






4. A bridge circuit that is in the balanced state as indicated by 0 V across the output.






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






6. A digital counter having ten states






7. Characterized by ten states or values






8. 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






9. The maximum value of a voltage or current






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






11. 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






12. 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






13. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






14. 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.






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






16. A type of magnetic tape format






17. In addition - the number that is added to another number called the augend






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






19. 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.






20. The number of protons in a nucleus






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






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






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






24. In Boolean algebra - the AND operation






25. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control






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






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






28. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.






29. The smallest particle of an element possessing the unique characteristics of that element.






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






31. A circuit with a complete current path






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






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






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






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






36. Consisting of numerals - letters - and other characters






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






38. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus






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






40. In Boolean algebra - the OR operation






41. 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






42. A transformer in which the primary and secondary are in a single winding






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






44. A group of eight bits






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






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






47. The beginning address of a segment of memory






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






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






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







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