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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. The application of a dc voltage to an electronic device to produce a desired mode of operation






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






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






4. A combined coder and decoder






5. The inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa






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






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






8. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.






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






10. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic






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






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






13. An electrical instrument used to measure current






14. In Boolean algebra - the OR operation






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






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






17. The unit of electrical current






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






19. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.






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






21. 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.






22. 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






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






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






25. The process that prevents two sources from using a bus at the same time






26. A circuit with a complete current path






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






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






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






30. 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






31. 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.






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






33. Characterized by ten states or values






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






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






37. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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38. A type of magnetic tape format






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






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






41. The number of protons in a nucleus






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






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






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






45. A condition where all the load currents are equal and the neutral current is zero






46. 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






47. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits






48. 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






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






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