What hardware upgrades are necessary to improve the speed of my computer?

1. Increase the amount of RAM (Random Access Memory).

2. Upgrade your CPU (Central Processing Unit) to a faster model with a higher clock speed.
3. Replace your hard drive with an SSD (Solid State Drive).
4. Replace your graphics card with one specifically designed for gaming or graphics use.
5. Install an additional cooling fan to help keep your computer from overheating.
6. Upgrade your power supply if necessary to power more powerful components.