Test your basic knowledge |

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






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






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






4. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






5. Information in numeric - alphabetic - or other form.






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






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






8. 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.

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






10. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.






11. A digital counter having ten states






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






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






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






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






16. 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






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






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






19. 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






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






21. The beginning address of a segment of memory






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






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






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






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






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






27. 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






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

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






30. One of the three regions in a bipolar junction transistor






31. A device used to convert an analog signal to a sequence of digital codes






32. The mathematics of logic circuits






33. One current path in a parallel circuit; a current path that connects two nodes






34. 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.






35. American National Standards Institute






36. 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.






37. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory






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






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






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






41. Data Terminal equipment






42. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor






43. 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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44. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






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






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






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






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






49. A logic gate that produces a High output only when all of the inputs are HIGH






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