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. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop






3. 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.






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






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






6. 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.






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






8. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product






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






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






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






12. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.






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. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.






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






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






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






18. Having two opposites charge carriers within the transistor structure






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






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






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






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






23. 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






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






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






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






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






28. A group of eight bits






29. 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.






30. 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






31. Burst extended data output dynamic random- access memory






32. 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






33. A receiving device on a bus






34. 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






35. A logic circuit used to add two binary numbers






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






37. A digital counter having ten states






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






39. Consisting of numerals - letters - and other characters






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






41. American National Standards Institute






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






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






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






45. An electrical instrument used to measure current






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






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






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






49. 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






50. 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.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests