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 combined coder and decoder






2. Digital Signal Processor; a special type of microprocessor that processes data in real time






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






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






5. The beginning address of a segment of memory






6. A series of bits describing a final design that is sent to the target device during programming






7. Altera HDL; a nonstandard HDL






8. Consisting of numerals - letters - and other characters






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






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






11. The maximum value of a voltage or current






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






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






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






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






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






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






18. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.






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






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






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






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






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






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






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






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






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






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






29. 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.






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






31. 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






32. 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.






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






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






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






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






37. Data Terminal equipment






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






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






40. To decrease the binary state of a counter by one






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






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






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






44. Characterized by ten states or values






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






46. 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






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






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






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






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