No, it does not necessarily mean that the system is linear. A linear system will exhibit a constant scaling property, which means that if the input is multiplied by a constant, the output will also be multiplied by the same constant. It is possible for a system to have an output of zero for a zero input, but still be non-linear if it does not exhibit the scaling property.
There are many examples of these. I would compare a linear device as a device giving a linear output as a result of the input. This can be an amplifier or simply the circuits that makes up the amplifier. A non-linear device could be a computer chip or a logic chip that is either on or off (only 2 stages) on both input and output. Some devices combine linear and non linear working modes. A typical OpAmp has got 2 inputs that can vary, where as the output is either On (close to input voltage of the circuit) or Off (close to input negative voltage or GND of the circuit) Other forms of linearities can be within a single transistor. It may have a linear voltage curve. This curve can also be non linear. This most often very dependent upon temperature.
Non negative output
A function may be defined over only certain values. That is, it may have only a certain set of values that can serve as input. For example, in elementary mathematics, the principal square root is only defined for non-negative real numbers. This is the "area" over which the function is valid and so it is called the domain. The mathematical term for the set of output values is actually the co-domain, but many people refer to it as the range.
Let's illustrate with an example. The square function takes a number as its input, and returns the square of a number. The opposite (inverse) function is the square root (input: any non-negative number; output: the square root). For example, the square of 3 is 9; the square root of 9 is 3. The idea, then, is that if you apply first a function, then its inverse, you get the original number back.
There is no such thing as an inverting or a non-inverting op amp.All op amps have both an inverting input and a non-inverting input. Their operation is such that the output will go to whatever value is required to make both inputs be the same. This implies feedback from output to inverting input.
In an op-amp, an input on the inverting terminal drives the output in the opposite direction, while an input on the non inverting terminal drives the output in the same direction. In a normal closed loop negative feedback configuration, there is feedback from output to inverting input, so that the output becomes a known function of input. So long as you stay within limits, the output will go to whatever value is required to make the inputs be the same.
The amplifier whose output is inphase with it input means if we consider voltage amplification then there is zero phase shift in input and output
A comparator is an operational amplifier used without a feedback circuit. The output of the comparator will be high when the voltage of the non-inverting input is below the inverting input, and low when the inverting is above the non-inverting input. The output is undefined - i.e. can by anything - when the voltages are equal.
Linear
An inverting amplifier is one where the output is an inverted function of the input. The Class A transistor amplifier, also known as common-emitter, is inverting. As you increase the voltage on the base, the output voltage on the collector decreases. The operational amplifier has an inverting and a non-inverting input. In typical bridge mode, the output is inverted with respect to the (inverting) input, and the non-inverting input is used to reject common-mode input signals by moving the virtual ground point as needed.
The output voltage of a opamp when the input of inverting and non inverting terminals are grounded
Printer & Monitor are not input device, these are output devices.
The relationship between input work and useful output work can be represented by efficiency. Efficiency is the ratio of useful output work to input work. A higher efficiency indicates that a larger proportion of the input work is converted into useful output work, while a lower efficiency suggests that more of the input work is wasted or converted into non-useful forms.
I should expect a real-world op-amp to have 5connections:-- the inverting signal input-- the non-inverting signal input-- the signal output-- the power supply input-- the ground connection.
No, it does not necessarily mean that the system is linear. A linear system will exhibit a constant scaling property, which means that if the input is multiplied by a constant, the output will also be multiplied by the same constant. It is possible for a system to have an output of zero for a zero input, but still be non-linear if it does not exhibit the scaling property.
A drive, whether a hard disk disk, flash memory drive, or floppy disk drive is a peripheral device that can be used for both input and output. This is in contrast to certain devices that can be used for only for output like monitors (non touch screen) and devices which can only be used for input like keyboards.