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






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






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






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






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






6. The maximum value of a voltage or current






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






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






9. Describes a number system with a base of ten






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






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






12. The application of a dc voltage to an electronic device to produce a desired mode of operation






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 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






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






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






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






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






19. Burst extended data output dynamic random- access memory






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






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






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






23. 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






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






25. Data Communications equipment






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






27. Characterized by ten states or values






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






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






30. Having two opposites charge carriers within the transistor structure






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






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






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






34. The unit of electrical current






35. 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






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






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






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






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






40. 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






41. 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.






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






43. A set of interconnections that interface one or more devices based on a standardized specification






44. 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.






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






46. A digital counter having ten states






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






48. The current left after the total load current is subtracted from the total current into the circuit






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






50. The process of producing an output carry in full- adder when both input bits are 1s.