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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 receiving device on a bus






2. In Boolean algebra - the OR operation






3. The time from the application of a valid memory address to the appearance of valid output data






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






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






6. Information in numeric - alphabetic - or other form.






7. 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.






8. Altera HDL; a nonstandard HDL






9. A circuit with a complete current path






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






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






12. 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






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






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






15. 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






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






17. American National Standards Institute






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






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






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






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






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






23. A logic circuit used to add two binary numbers






24. 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






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






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






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






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






29. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.






30. The actual current in a branch






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






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






33. The interval of time occupied by a single bit in a sequence of bits; the period of the clock






34. Dual in - line memory module






35. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.






36. 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






37. A bidirectional set of conductive paths on which data or instruction codes are transferred into a microprocessor or on which the result of an operation is sent out from the microprocessor






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






39. 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.






40. The digit generated when the sum of two binary digits exceeds 1






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






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






43. The ability of a capacitor to store electrical charge.






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






45. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.






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






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






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






49. 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






50. A connection at the midpoint of a winding in a transformer







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