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






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






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






4. Burst extended data output dynamic random- access memory






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






6. A logic circuit used to add two binary numbers






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


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






9. Altera HDL; a nonstandard HDL






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






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






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






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






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






15. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.






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






17. 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






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






19. A circuit that prevents loading of an input or output






20. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load






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






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






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






24. A group of eight bits






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






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






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






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






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






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






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


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






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






34. 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






35. Dual in - line memory module






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






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






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






39. American National Standards Institute






40. A program that converts English- like mnemonics into machine code






41. Data Communications equipment






42. 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






43. 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






44. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points






45. The mathematics of logic circuits






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






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






48. A type of magnetic tape format






49. A unit of the cross - sectional area of a wire.






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