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. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction






2. 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






3. A receiving device on a bus






4. 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.






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






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






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






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






9. One current path in a parallel circuit; a current path that connects two nodes






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






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






12. The unit of electrical current






13. Digital audio tape; a type of magnetic tape format






14. The beginning address of a segment of memory






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






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






17. Dual in - line memory module






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






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






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






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






22. 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






23. 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






24. In Boolean algebra - the OR operation






25. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control






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






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






28. In Boolean algebra - the AND operation






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






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


31. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)






32. 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






33. 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






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






35. 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






36. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






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






38. A combined coder and decoder






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






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






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






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






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






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






45. A circuit with a complete current path






46. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents






47. Altera HDL; a nonstandard HDL






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






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






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