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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. Digital audio tape; a type of magnetic tape format






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






3. 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






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






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






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






7. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






8. A receiving device on a bus






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






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






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






12. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification


13. 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.


14. American National Standards Institute






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






16. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






17. Altera HDL; a nonstandard HDL






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






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






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






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






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






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






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






25. 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






26. A logic circuit used to add two binary numbers






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






28. 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






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






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






31. 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






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






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






34. The action of a circuit in which it accepts current into its output from a load






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






36. The maximum value of a voltage or current






37. The beginning address of a segment of memory






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






39. 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.






40. A set of interconnections that interface one or more devices based on a standardized specification






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






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






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






44. An expression of variables and operators used to express the operation of a logic circuit






45. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.






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






47. Data Terminal equipment






48. Having two opposites charge carriers within the transistor structure






49. A type of inductor used to block or choke off high frequencies






50. Sum of all the voltage drops in series equals to the source voltage