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






2. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.






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






4. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






6. The unit of electrical current






7. 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






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






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


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






11. 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






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






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






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






15. A logic circuit used to add two binary numbers






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






17. 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






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






19. 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.






20. American National Standards Institute






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






22. The time from the application of a valid memory address to the appearance of valid output data






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






24. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system






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






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






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






28. Consisting of numerals - letters - and other characters






29. Dual in - line memory module






30. A digital counter having ten states






31. A unit of the cross - sectional area of a wire.






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






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






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






35. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic






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






37. 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.






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






39. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.






40. 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.






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






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






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






44. 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






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






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






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






48. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence






49. 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






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