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






2. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens






3. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.






4. A logic gate that produces a High output only when all of the inputs are HIGH






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






6. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






8. 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






9. Data Terminal equipment






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






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






12. The maximum value of a voltage or current






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






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






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






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






17. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.






18. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product






19. A device used to convert an analog signal to a sequence of digital codes






20. Having two opposites charge carriers within the transistor structure






21. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






22. A combined coder and decoder






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






24. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.






25. The total number of data units(bits - nibbles - bytes - words) that a memory can store.






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






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






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






29. Characterized by ten states or values






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






31. A circuit with a complete current path






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






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






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






35. 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






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






37. 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






38. 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






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






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






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






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






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






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






45. A method of analog- to- digital conversion using a 1- bit quantization process






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






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






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






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






50. 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







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