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






2. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory






3. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.






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






5. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage






6. 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






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






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






9. The number of protons in a nucleus






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






11. Sum of all currents entering a node is equal to the sum of all currents leaving the same node

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12. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative






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






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






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






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






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






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






19. Characterized by ten states or values






20. 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.






21. A logic circuit used to add two binary numbers






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






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






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






25. 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






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






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






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






29. A receiving device on a bus






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






31. Consisting of numerals - letters - and other characters






32. The mathematics of logic circuits






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






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






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






36. 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.






37. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






38. In Boolean algebra - the OR operation






39. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence






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






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






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






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






44. In Boolean algebra - the AND operation






45. 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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46. Dual in - line memory module






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






48. One current path in a parallel circuit; a current path that connects two nodes






49. 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






50. The unit of electrical current