Test your basic knowledge |

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. Information in numeric - alphabetic - or other form.






2. 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






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






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






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






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






7. A digital counter having ten states






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






9. Digital audio tape; a type of magnetic tape format






10. Altera HDL; a nonstandard HDL






11. The actual current in a branch






12. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.






13. Data Communications equipment






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






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






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






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






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






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






20. A type of magnetic tape format






21. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.






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






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






24. A logic circuit used to add two binary numbers






25. A circuit with a complete current path






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






27. 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






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






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






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






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






32. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function






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






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






35. 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






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






37. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.






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






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






40. 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






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






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






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






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






45. 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






46. 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.






47. Characterized by ten states or values






48. 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






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






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