Question 21 :
In which year was MIDI(dress) introduced?
Question 22 :
What does the term PLC stand for?
Used in manufacturing, engineering, and process operations.
Question 23 :
When measuring the characteristics of a small-signal amplifier, say for a radio receiver, one might be concerned with its "Noise..."?
"Noise figure" is one critical parameter for determining the "quality" of a low-noise, small-signal, amplifier, and perhaps more importantly, the sensitivity of the overall receiver system. It is especially important for VHF (very high frequency) - and higher frequency - designs where most of the undesired "noise" (noise that masks or overpowers the desired signals) is generated internal to the electronics itself. In HF (high frequency) applications, atmospheric noise plays a much larger role in determining overall useful sensitivity, so a circuit's "noise figure" is less important.
Question 24 :
'DB' computer abbreviation usually means ?
Question 25 :
'.INI' extension refers usually to what kind of file?