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

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






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






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






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






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






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






8. 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






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






10. The ratio of pulse width to period expressed as a percentage






11. Altera HDL; a nonstandard HDL






12. Data Communications equipment






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






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






15. A circuit with a complete current path






16. Dual in - line memory module






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






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






19. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.






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






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






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






23. 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.






24. Data Terminal equipment






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






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






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






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






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






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






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






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






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






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






36. 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






37. 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.






38. Digital Signal Processor; a special type of microprocessor that processes data in real time






39. An expression of variables and operators used to express the operation of a logic circuit






40. 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






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






42. 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.






43. A condition where all the load currents are equal and the neutral current is zero






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






45. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points






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






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






48. The maximum value of a voltage or current






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






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