Computer upgrade is the process of improving the performance and functionality of a computer by replacing or adding hardware or software components. Upgrading your computer can help extend its lifespan and keep up with the demands of newer and more advanced software applications. Hardware upgrades can involve replacing components such as the processor, memory (RAM), hard drive, or graphics card. A faster processor or more RAM can significantly...

All computer hardware components used to feed raw and other data to a computer system are categorized as input hardware devices.