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






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






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






4. 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






5. American Standard Code for Information Interchange; the most widely used alphanumeric code.






6. The actual current in a branch






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






8. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits






9. One current path in a parallel circuit; a current path that connects two nodes






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






11. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.






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






13. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.






14. 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






15. Altera HDL; a nonstandard HDL






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






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






18. A type of magnetic tape format






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






20. The normal level of a pulse waveform; the voltage level in the absence of a pulse.






21. 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






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






23. 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.






24. 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.






25. A logic circuit used to add two binary numbers






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






27. 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.






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






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






30. A class of integrated logic circuits that is implemented with a type of field effect transistor






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






32. In Boolean algebra - the OR operation






33. 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






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






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






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






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






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






39. The mathematics of logic circuits






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






41. A group of eight bits






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






43. Describes a number system with a base of ten






44. A circuit with a complete current path






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






46. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction






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






48. In Boolean algebra - the AND operation






49. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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