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






2. Dual in - line memory module






3. The beginning address of a segment of memory






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






5. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






6. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously






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






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






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






10. The maximum value of a voltage or current






11. Information in numeric - alphabetic - or other form.






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






13. The unit of electrical current






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






15. A bridge circuit that is in the balanced state as indicated by 0 V across the output.






16. 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






17. 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






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






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






20. 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






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






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






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






24. 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.






25. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.






26. A combined coder and decoder






27. A logic circuit used to add two binary numbers






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






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






30. Characterized by ten states or values






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






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






33. Having two opposites charge carriers within the transistor structure






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






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






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

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






38. 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






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






40. A device used to convert an analog signal to a sequence of digital codes






41. 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






42. Consisting of numerals - letters - and other characters






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






44. 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






45. A type of counter in which each stage is clocked from the output of the preceding stage.






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






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






48. The application of a dc voltage to an electronic device to produce a desired mode of operation






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






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