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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 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






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






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






4. 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






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






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






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






8. 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






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






10. Data Terminal equipment






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






12. Consisting of numerals - letters - and other characters






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






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






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






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






17. 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






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






19. A logic circuit used to add two binary numbers






20. In Boolean algebra - the OR operation






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






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






23. American National Standards Institute






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






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






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






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






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






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






30. Describes a number system with a base of ten






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






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






33. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points






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






35. The mathematics of logic circuits






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






37. 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.






38. An array of AND gates consisting of a matrix of programmable interconnection






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






40. A circuit with a complete current path






41. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






42. The unit of electrical current






43. A type of magnetic tape format






44. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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






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






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






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






49. Data Communications equipment






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






Can you answer 50 questions in 15 minutes?



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