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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. American National Standards Institute






2. Consisting of numerals - letters - and other characters






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






4. A digital counter having ten states






5. 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.


6. Dual in - line memory module






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






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






9. 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






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






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






12. The beginning address of a segment of memory






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






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






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






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






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






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






19. A transformer in which the primary and secondary are in a single winding






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


21. A type of magnetic tape format






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






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






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






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






26. 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






27. 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.






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






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






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






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






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






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






34. The unit of electrical current






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






36. Burst extended data output dynamic random- access memory






37. A receiving device on a bus






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






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






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


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


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






43. The number of protons in a nucleus






44. 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






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






46. 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






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






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






49. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.






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