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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. Dual in - line memory module






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






3. A combined coder and decoder






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






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






6. A type of magnetic tape format






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






8. Transistor-Transistor Logic and is implemented with bipolar junction transistors






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






10. 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.






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






12. Describes a number system with a base of ten






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






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






15. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load






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






17. In Boolean algebra - the OR operation






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






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






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






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






22. Consisting of numerals - letters - and other characters






23. 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






24. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






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






27. 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






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






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






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






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






32. An electrical instrument used to measure current






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






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






35. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.






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






37. Data Terminal equipment






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






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






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






41. The process or sequence of operations carried out to program a target device






42. 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






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






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






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






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






47. 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






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






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






50. American National Standards Institute