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






3. American National Standards Institute






4. The current left after the total load current is subtracted from the total current into the circuit






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






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






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






8. 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






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






10. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.






11. 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.






12. The mathematics of logic circuits






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






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






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






16. 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.






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






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






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






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






21. Characterized by ten states or values






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






23. Describes a number system with a base of ten






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






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






26. A type of magnetic tape format






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






28. Burst extended data output dynamic random- access memory






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






30. Data Terminal equipment






31. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.






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






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






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






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






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






37. 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.






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






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






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






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






42. Altera HDL; a nonstandard HDL






43. 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






44. 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.






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






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






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






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






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






50. The process of converting an analog signal to digital form