Supportsoft Glossary

Understanding Hardware Components in IT Systems

Those components that make up a computer and/or digital device (hardware). Each component has a different function in the overall system, working in concert to execute the instructions generated by the user, store temporary data for retrieval during processing, and provide the necessary speed and reliability for the applications and systems to run smoothly.

The CPU does all the calculations or logic; RAM is the temporary storage for active applications or stored data; the longer-term storage is through hard discs or solid-state drives (SSDs). Other hardware components handle input and output, manage communications and networking, and regulate power usage. As more advances in technology are made, more and faster-performing systems become available to support greater workloads.

A basic understanding of hardware as an IT professional is crucial, as without a proper working foundation to support software operations, there will be no successful use of that software. In IT, performance tuning, capacity planning and system optimising are all dependent on the hardware selected for the particular need. The right configuration of the hardware in a business environment can have a significant impact on productivity, scalability and ongoing operating costs.