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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. A semiconductor device that conducts current in only one direction






2. 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.






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






4. Having two opposites charge carriers within the transistor structure






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






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






7. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's






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






9. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference






10. 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.






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






12. 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






13. Consisting of numerals - letters - and other characters






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






15. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






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






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






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






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






22. The mathematics of logic circuits






23. A digital counter having ten states






24. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.






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






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






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






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






29. 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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30. A logic circuit used to add two binary numbers






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






32. 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.






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






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






35. A type of magnetic tape format






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






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






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






39. A group of eight bits






40. 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.






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






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






43. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB






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






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






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






47. A combined coder and decoder






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






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






50. 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