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






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






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






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






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






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


7. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's






8. A circuit with a complete current path






9. Altera HDL; a nonstandard HDL






10. Data Terminal equipment






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






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






13. An electrical instrument used to measure current






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






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






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






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






18. A combined coder and decoder






19. 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






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






21. The maximum value of a voltage or current






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






23. 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.






24. 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






25. In Boolean algebra - the OR operation






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






27. A group of eight bits






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






29. 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.






30. A logic circuit used to add two binary numbers






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






32. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte






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






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






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






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






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






38. In Boolean algebra - the AND operation






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






40. A connection at the midpoint of a winding in a transformer






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






42. The mathematics of logic circuits






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






44. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program






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






46. 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.






47. 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






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






49. 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.






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