List seven basic internal components found in a computer tower

The following are seven basic internal computer components which can be found inside a computer tower;

1. The CPU or Central Processing Unit, it the "brain" of the computer and manages all of the processing tasks.2. RAM or Random Access Memory.3. The Motherboard, which allows all the internal components to communicate with each other.  4. The PSU or Power Supply Unit.5. The HDD or Hard Disk Drive.6. The GPU or Graphical Processing Unit or Graphics card as it commonly known as.7. The Optical Drive