Computer performance refers to how well a computer system executes tasks and processes data. It is typically measured by factors such as processing speed, memory capacity, and storage efficiency. Key components that influence performance include the CPU (Central Processing Unit), RAM (Random Access Memory), and hard drive or SSD (Solid State Drive) speed. Improving computer performance can involve upgrading hardware, optimizing software, or managing system resources effectively. For example, increasing RAM allows a computer to handle more applications simultaneously, while a faster CPU can execute instructions more quickly. Regular maintenance, such as clearing unnecessary files, can also enhance overall performance.