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






2. 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






3. A combined coder and decoder






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






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






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






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






9. 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






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






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






12. Data Communications equipment






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






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






15. 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






16. In Boolean algebra - the AND operation






17. An electrical instrument used to measure current






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






19. A digital counter having ten states






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






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






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






23. 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






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






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






26. A transformer in which the primary and secondary are in a single winding






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






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






29. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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






31. 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






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






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






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






35. A type of magnetic tape format






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






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






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






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






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






41. 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






42. Data Terminal equipment






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






44. 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.






45. A program that converts English- like mnemonics into machine code






46. In Boolean algebra - the OR operation






47. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






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






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