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






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






3. Data Terminal equipment






4. A circuit with a complete current path






5. An expression of variables and operators used to express the operation of a logic circuit






6. Data Communications equipment






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






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






9. A combined coder and decoder






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






11. Consisting of numerals - letters - and other characters






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






13. A logic circuit used to add two binary numbers






14. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.






15. Describes a number system with a base of ten






16. The mathematics of logic circuits






17. A type of inductor used to block or choke off high frequencies






18. 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






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






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






21. The unit of electrical current






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

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






24. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






25. 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






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






27. Altera HDL; a nonstandard HDL






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






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. A semiconductor device that conducts current in only one direction






31. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB






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






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






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






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






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






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






38. 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.






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






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






41. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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






43. A class of integrated logic circuits that is implemented with a type of field effect transistor






44. The actual current in a branch






45. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






46. 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.






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






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






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






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