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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 VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.






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


3. A digital counter having ten states






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






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






6. 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.






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






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






9. 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.






10. Sum of all currents entering a node is equal to the sum of all currents leaving the same node


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






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






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






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






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






16. Data Communications equipment






17. 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






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






19. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions






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






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






22. An electrical instrument used to measure current






23. 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.






24. A logic circuit used to add two binary numbers






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






26. 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






27. 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.






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






29. 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






30. A receiving device on a bus






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






32. Altera HDL; a nonstandard HDL






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






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






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






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






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






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






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






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






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






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






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






44. A type of magnetic tape format






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






46. The maximum value of a voltage or current






47. A programming language that uses English like words and has a one- to- one correspondence to machine language






48. 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.


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






50. 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