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






2. A method for internally testing a PLD based on the JTAG standard (IEEE std.)






3. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






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






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






6. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control






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






8. The process that prevents two sources from using a bus at the same time






9. A circuit with a complete current path






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






11. 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






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






13. American National Standards Institute






14. A receiving device on a bus






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






16. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function






17. 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.






18. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory






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






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






21. In Boolean algebra - the AND operation






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






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






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






25. 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






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






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






28. The actual current in a branch






29. A group of eight bits






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






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






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






33. Information in numeric - alphabetic - or other form.






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






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






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






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






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






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






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






42. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).






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






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






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






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






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






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






49. In Boolean algebra - the OR operation






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