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






2. A resettable protective device used for interrupting execessive current in an electric circuit






3. A receiving device on a bus






4. A digital circuit device that converts coded information into another (familiar) or noncoded form






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






6. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






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






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






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






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






11. A type of magnetic tape format






12. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.






13. 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






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






15. In Boolean algebra - the OR operation






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






17. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor






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






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






20. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB






21. The maximum value of a voltage or current






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






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






24. Burst extended data output dynamic random- access memory






25. A connection at the midpoint of a winding in a transformer






26. A logic circuit used to add two binary numbers






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






28. Altera HDL; a nonstandard HDL






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






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






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






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






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






35. 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






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






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






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






39. Having two opposites charge carriers within the transistor structure






40. 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






41. The inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa






42. Data Terminal equipment






43. The number of protons in a nucleus






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

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






46. Characterized by ten states or values






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






48. 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.






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






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