Test your basic knowledge |

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






2. 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






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






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






5. The beginning address of a segment of memory






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






7. Having two stable states. Flip- flops and latches are bistable multivibrators.






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






9. A type of IC package whose leads must pass through holes to the other side of a PC board






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






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






12. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor






13. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






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 electrical instrument used to measure current






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






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






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






19. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits






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






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






22. The number of protons in a nucleus






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






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






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






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






27. Consisting of numerals - letters - and other characters






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






29. 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.






30. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte






31. A digital counter having ten states






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






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






34. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.






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






36. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system






37. Data Terminal equipment






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






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






40. The mathematics of logic circuits






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






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






43. 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






44. Transistor-Transistor Logic and is implemented with bipolar junction transistors






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






46. American National Standards Institute






47. The actual current in a branch






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






49. 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






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