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 unit of the cross - sectional area of a wire.






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






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






4. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).






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






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






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






8. Data Communications equipment






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






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






11. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






12. The maximum value of a voltage or current






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






14. 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






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






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






17. Describes a number system with a base of ten






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






19. American National Standards Institute






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






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






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






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






24. 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






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






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






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






28. The process of rippling an input carry to become the output carry in a full- adder when either or both of the input bits are 1's and the input carry is a 1






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






30. 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






31. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory






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






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






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






35. A circuit with a complete current path






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






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






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






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






40. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.






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






42. The current left after the total load current is subtracted from the total current into the circuit






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






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






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






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






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






48. Dual in - line memory module






49. American Standard Code for Information Interchange; the most widely used alphanumeric code.






50. The normal level of a pulse waveform; the voltage level in the absence of a pulse.