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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. Burst extended data output dynamic random- access memory






2. The number of protons in a nucleus






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






4. In Boolean algebra - the AND operation






5. 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.






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






7. 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






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






9. Characterized by ten states or values






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






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






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






13. The digit generated when the sum of two binary digits exceeds 1






14. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






15. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






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






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






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






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






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






21. A logic circuit used to add two binary numbers






22. The actual current in a branch






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






24. A method of analog- to- digital conversion using a 1- bit quantization process






25. 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.






26. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.






27. 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






28. The maximum value of a voltage or current






29. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






30. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.






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






32. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device






33. Having two directions. the stored data can be shifted right or left






34. Describes a number system with a base of ten






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






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






37. 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






38. 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






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






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






41. 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






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






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






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






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






46. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.






47. 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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48. In Boolean algebra - the OR operation






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






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