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The two main functions of a transistor are: (a) signal amplification, and (b) solid-state switching.
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When transistors are used in digital circuits they usually operate in what region?
active region
How can the path of current be controlled in different circuits?
Transistors and/or relays.
What were used before transistors?
If the integrated circuit in some kind of device has 5,000 transistors on it, then before integrated circuits were available, the same function might have been performed by 100 individual transistors. And before transistors were available, the same function might have been performed by 30 vacuum tubes, a fan and air system to keep them cool, and a large power system to operate the tubes and the cooler.
What does the arrow in bipolar junction transistor symbol represent?
There a two types of bipolar transistors PNP and NPN . This refers to the doping elements used in the silicon components of this 3 layer device with base always in the middle. The arrow is the emitter wire and shows direction of conventional current flow(positive to negative) NPN transistors (generally used in negative earth circuits) have the arrow pointing away from the base connection PNP transistors ( generally used in circuits with positive earth) have the arrow pointing towards the base connection.
How many transistors in 1 GB?
in DRAM there will be slightly more than 8 billion transistors (one per bit, plus address decode and support circuits)in SRAM there will be slightly more than 48 billion transistors (six per bit, plus address decode and support circuits)
What replaced vacuum tubes in the computer?
Integrated circuits (in many microprocessor integrated circuits) containing many billions of transistors each.
When transistors are used in digital circuits they usually operate in what region?
active region
What two technologies were used in computers before integrated circuits were used?
Tubes, magnetic logic, and transistors.
Why are MOSFETs used in motor control circuits instead of bipolar junction transistors?
Actually either can be used.
Where is integrated circuit used?
ic's are used in CPU to perform any task. these are the combination of circuits, pathways, transistors etc.
Are transistors polarised?
No it alternates the power from the circuit/circuits.
How many transistors can fit in a microchip the size of a penny?
That depends:simple passive circuits have no transistorsvacuum tube circuits have no transistorssolid state circuits can have anywhere from no transistors (just diodes and/or magnetic amplifying transformers) to as many transistors as needed to perform the function
Transistor works as an amplifier?
Yes, transistors can be used as amplifiers, but they are not limited to only this use (they are also used in logic circuits, for example).
What elements were used to process data in each of the four generations of computers?
The first generation used vacuum tubes, the second used transistors, the third used integrated circuits, and the fourth used integrated circuits on a single computer chip.
How can the path of current be controlled in different circuits?
Transistors and/or relays.
What is built on integrated circuits and carries the electrical current?
Transistors
What do digital circuits mostly use?
Bipolar Transistors and Diode's .
