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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 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.






2. The mathematics of logic circuits






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






4. 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






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






6. 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






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






9. A type of counter in which each stage is clocked from the output of the preceding stage.






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






11. 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.






12. Characterized by ten states or values






13. A method of analog- to- digital conversion using a 1- bit quantization process






14. Data Terminal equipment






15. The process or sequence of operations carried out to program a target device






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






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






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

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






20. The actual current in a branch






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






22. A semiconductor device that conducts current in only one direction






23. Burst extended data output dynamic random- access memory






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






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






26. 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






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






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






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






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






31. The number of protons in a nucleus






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






33. Dual in - line memory module






34. 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






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






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






37. A combined coder and decoder






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






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






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






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






42. A bridge circuit that is in the balanced state as indicated by 0 V across the output.






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






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






45. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function






46. Altera HDL; a nonstandard HDL






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






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






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






50. Having two opposites charge carriers within the transistor structure