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






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






3. Characterized by ten states or values






4. 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






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






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






7. A type of magnetic tape format






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






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






10. The number of protons in a nucleus






11. 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






12. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.






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






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






15. A circuit with a complete current path






16. In Boolean algebra - the OR operation






17. Having two opposites charge carriers within the transistor structure






18. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.






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






20. Describes a number system with a base of ten






21. 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.






22. Altera HDL; a nonstandard HDL






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






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






25. A unit of the cross - sectional area of a wire.






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






27. 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






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






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






30. A receiving device on a bus






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






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






33. 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.






34. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






35. A digital counter having ten states






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






37. 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






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






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






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






41. 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






42. 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






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






44. 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






45. Characteristic of cells in a Karnaugh map in which there is a single- variable change from one cell to another cell next to it on any of its four sides






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






47. In Boolean algebra - the AND operation






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






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






50. 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