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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. Having two opposites charge carriers within the transistor structure






2. 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.






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






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






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






6. Data Terminal equipment






7. One of the three regions in a bipolar junction transistor






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






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






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






11. A circuit with a complete current path






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






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






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. The process that prevents two sources from using a bus at the same time






16. 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.






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

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






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






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






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






22. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs






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






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






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






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






27. A logic circuit used to add two binary numbers






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






29. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






31. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.






32. The maximum value of a voltage or current






33. 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.






34. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed






35. The beginning address of a segment of memory






36. The number of protons in a nucleus






37. A semiconductor device that conducts current in only one direction






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






39. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function






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






41. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory






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






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






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






45. 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






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






47. Burst extended data output dynamic random- access memory






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






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






50. The smallest particle of an element possessing the unique characteristics of that element.