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 receiving device on a bus






2. A combined coder and decoder






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






4. Data Communications equipment






5. An electrical instrument used to measure current






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






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






8. A software compiler language for SPLD programming; a type of hardware description language (HDL)






9. In Boolean algebra - the OR operation






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






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






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






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






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






16. Having two opposites charge carriers within the transistor structure






17. A resettable protective device used for interrupting execessive current in an electric circuit






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






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






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






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






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






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






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






25. Describes a number system with a base of ten






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






27. Consisting of numerals - letters - and other characters






28. A type of magnetic tape format






29. 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.






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






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


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






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






34. Data Terminal equipment






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






36. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






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






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






39. The number of protons in a nucleus






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






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






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






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






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






45. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.


46. Dual in - line memory module






47. A digital counter having ten states






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






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






50. A group of eight bits