System resources refer to the hardware and software components that are available on a computer system. These include physical devices such as CPU, memory (RAM), storage (hard drive or SSD), input/output devices like keyboard, mouse, printers etc., operating systems, drivers, applications, and other software programs installed on the system. In essence, all of these components work together to enable a computer to perform tasks efficiently and effectively. When there is an issue with any one of these resources or when they are not functioning optimally, it can lead to slow performance, crashes, errors etc., which can negatively impact the user experience.