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

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






3. 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






4. A type of magnetic tape format






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






6. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents






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






8. 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.






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






10. 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






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






12. 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






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






14. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.






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






16. The beginning address of a segment of memory






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






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






19. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent






20. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)






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






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






23. A circuit with a complete current path






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






25. Altera HDL; a nonstandard HDL






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






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






28. A digital circuit device that converts coded information into another (familiar) or noncoded form






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






30. The maximum value of a voltage or current






31. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic






32. Having two opposites charge carriers within the transistor structure






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






34. Data Communications equipment






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






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






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






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






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






40. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device






41. An electrical instrument used to measure current






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






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






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






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






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






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






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






50. Dual in - line memory module