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






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






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






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






5. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification

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






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






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






9. A type of magnetic tape format






10. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.






11. 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






12. Information in numeric - alphabetic - or other form.






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






14. The beginning address of a segment of memory






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






16. Characterized by ten states or values






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






18. A logic circuit used to add two binary numbers






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






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






21. A group of eight bits






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






23. 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






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






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






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






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






28. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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29. 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






30. 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.






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






32. Having two opposites charge carriers within the transistor structure






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






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






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 reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






37. Burst extended data output dynamic random- access memory






38. The number of protons in a nucleus






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






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






41. The mathematics of logic circuits






42. American National Standards Institute






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






44. 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






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






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






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






48. One of the three regions in a bipolar junction transistor






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






50. The process that prevents two sources from using a bus at the same time