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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 semiconductor device that conducts current in only one direction






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






3. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.






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






5. Describes a number system with a base of ten






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






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






8. Data Terminal equipment






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






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






11. 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






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






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






14. 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






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






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






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






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

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19. 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






20. 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.






21. The process of producing an output carry in full- adder when both input bits are 1s.






22. The ability of a capacitor to store electrical charge.






23. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor






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






25. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.






26. Altera HDL; a nonstandard HDL






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






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






29. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor






30. A receiving device on a bus






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






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






33. The actual current in a branch






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






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






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






37. In Boolean algebra - the AND operation






38. A combined coder and decoder






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






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






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






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






43. American National Standards Institute






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






45. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent






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






47. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens






48. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.






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






50. An electrical instrument used to measure current