How is fuel injection (F.I.) different from a carburetor?

“It gives better starting and better engine response. Its benefit is that it gives the engine just the right amount of fuel regardless of changes in air temperature. A carburetor makes a mist of fuel droplets to send into the combustion chamber, but F.I. injects a fine spray of fuel under pressure. This spray is mixed with air and sent into the combustion chamber. In this process it is possible to control the amount and timing of the injection to increase combustion efficiency for better power development, better fuel economy plus cleaner exhaust emissions.”