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






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






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






4. 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






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






6. A receiving device on a bus






7. Sum of all the voltage drops in series equals to the source voltage

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


8. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction






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






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






11. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices






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






13. 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.






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






15. 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


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






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






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






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






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






21. 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.






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






23. A group of eight bits






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






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






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






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






28. The unit of electrical current






29. 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


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






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






32. A type of magnetic tape format






33. The time from the application of a valid memory address to the appearance of valid output data






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






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






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






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






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






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






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






41. Having two opposites charge carriers within the transistor structure






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






43. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.






44. Altera HDL; a nonstandard HDL






45. A combined coder and decoder






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






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






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






49. 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.






50. The maximum value of a voltage or current