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






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






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






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






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






6. 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






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






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






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






10. 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.






11. One of the three regions in a bipolar Junction transistor(North junction of NpN)






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






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






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






15. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.






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






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






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






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






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






21. 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






22. 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.






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






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






25. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs






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






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






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. Data Communications equipment






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






31. 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.






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






33. 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






34. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load






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






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






37. The maximum value of a voltage or current






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






39. Describes a number system with a base of ten






40. 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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41. A circuit with a complete current path






42. A logic circuit used to add two binary numbers






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






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






45. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






46. The inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa






47. 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






48. Having two opposites charge carriers within the transistor structure






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






50. Burst extended data output dynamic random- access memory







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