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. 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.






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






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






4. The unit of electrical current






5. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic






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






7. A series of bits describing a final design that is sent to the target device during programming






8. Describes a number system with a base of ten






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






10. A circuit with a complete current path






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






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






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






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






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






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






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






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






19. The maximum value of a voltage or current






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






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






24. An array of AND gates consisting of a matrix of programmable interconnection






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






26. 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






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






28. 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






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






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






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






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






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






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






35. 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.






36. The action of a circuit in which it accepts current into its output from a load






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






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






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






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






41. Sum of all currents entering a node is equal to the sum of all currents leaving the same node

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


42. In Boolean algebra - the AND operation






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






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






45. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product






46. The mathematics of logic circuits






47. 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.






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






49. The ratio of pulse width to period expressed as a percentage






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