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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. Digital audio tape; a type of magnetic tape format






2. In Boolean algebra - the AND operation






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






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






5. A circuit with a complete current path






6. The mathematics of logic circuits






7. In Boolean algebra - the OR operation






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






9. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.






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






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






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






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






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






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






16. American National Standards Institute






17. Dual in - line memory module






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






19. A logic circuit used to add two binary numbers






20. Describes a number system with a base of ten






21. A type of magnetic tape format






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






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






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






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






26. Altera HDL; a nonstandard HDL






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






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






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






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






31. 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






32. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.






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






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






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






36. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function






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






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






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






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






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






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






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






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






45. Having two opposites charge carriers within the transistor structure






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






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






48. 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






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






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