what is the difference between transistors and IC's.?

Question

what are the different logic gates?Explain each.

Answer 1

A transistor is a single device. It has 3 connections or leads. It is typically an analog device. An IC can have over 1,000,000 transistors in it, plus resistors, capacitors, and coils. It can have anywhere from 4 ro 64 or more leads. It can be analog, digital, or both.
Logic gates combine the on or off states applied to their input and output an on or off state depending on their logic. There are "and", "nand", "or", "nor" and other types of gates. An inverter is basically a "not" gate.
An "or" gate will put out a 0, or low, if the inputs are 0, but will put on a 1 of any or all of the inputs are a 1, or high. Other gates can get complicated and hard to explain in this format. Check the link below for an in-depth explanation.

Answer 2

The simplest way to understand it is to think of two diodes hooked together. That would be a transistor. It can be PNP or NPN depending on which way the two diodes are connected. In the case of the transistor, there are really only two states, on and off. When on, it may be anything from a simple switch to an amplifier, to even a regulator, as well as many other uses. All an IC is, is a collection of many transistors, along with other components, such as resistances and capacitance's. The days of the older "T squared" digital logic devices has long since been pretty much replaced by CMOS and LSI "chips" which are now designed pretty much to take the place of lots of complicated circuitry. The typical logic states are still pretty much the same. By digital, we mean base 2 math, not base 10, so there are only two states - on or off, generally, on being logic high and off being logic low.
To get in to "and" "nand" and "or" and exclusive "or" logic is too deep for an answer here.

Answer 3

Transistor, an individual active component in a circuit.
IC, a wafer with many entire circuits to perform simple or complex jobs.