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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. 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.






2. The maximum value of a voltage or current






3. 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






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






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






6. An electrical instrument used to measure current






7. Dual in - line memory module






8. 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






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






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






11. Consisting of numerals - letters - and other characters






12. A digital counter having ten states






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






14. A condition where all the load currents are equal and the neutral current is zero






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






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






17. 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.






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






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






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






21. Altera HDL; a nonstandard HDL






22. 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






23. 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






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






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






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






27. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.






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






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






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






31. Having two directions. the stored data can be shifted right or left






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






33. A type of magnetic tape format






34. Sum of all currents entering a node is equal to the sum of all currents leaving the same node

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35. The mathematics of logic circuits






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






37. A group of eight bits






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






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






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






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






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






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






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






45. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






46. American National Standards Institute






47. A combined coder and decoder






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






49. 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.






50. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits