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






2. To decrease the binary state of a counter by one






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






4. 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






5. The action of a circuit in which it accepts current into its output from a load






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






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






8. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus






9. In Boolean algebra - the OR operation






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


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






12. Burst extended data output dynamic random- access memory






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






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






15. 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






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






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






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






19. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






20. A circuit with a complete current path






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






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






23. Consisting of numerals - letters - and other characters






24. 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.






25. In a division operation the quantity that is being divided






26. American National Standards Institute






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






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






29. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's






30. Describes a number system with a base of ten






31. 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.






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






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






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






35. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor






36. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






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






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






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






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






41. A receiving device on a bus






42. An electrical instrument used to measure current






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






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






45. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.






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






47. The beginning address of a segment of memory






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






49. Altera HDL; a nonstandard HDL






50. 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.