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






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






4. Characterized by ten states or values






5. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.






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






7. 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






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






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






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






11. 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






12. Data Terminal equipment






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






14. The beginning address of a segment of memory






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






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






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






18. In Boolean algebra - the AND operation






19. 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.






20. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference






21. Altera HDL; a nonstandard HDL






22. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte






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






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






25. A digital circuit device that converts coded information into another (familiar) or noncoded form






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






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






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






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






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






31. 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






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






33. The unit of electrical current






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






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






36. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).






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






38. The normal level of a pulse waveform; the voltage level in the absence of a pulse.






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






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






41. A receiving device on a bus






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






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






44. Burst extended data output dynamic random- access memory






45. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.






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






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






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






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






50. American National Standards Institute