System hardware is the computer and its physical equipment.
The FreeDictionary.com defines system hardware as a computer and its physical equipment that is directly involved in the performance of data processing or communications. The system unit, or hard drive, is the actual computer.
Hardware
Removable media include CD and DVD drives.
The Cool Nerd website provides a diagram of a desktop PC, showing the components of the system unit, which is the computer tower and everything inside. Some of the hardware includes removable media and storage, including the CD, DVD and floppy disk drives that can be removed. Notebooks and laptop computers have the same components, but the hardware is integrated into a single portable unit.
Internal Components
The hardware system also contains a hard drive that cannot be seen or removed.
The computer hard disk stores all the information that is saved on the computer and cannot be seen or removed. It is housed in a special casing to protect the data stored on it. RAM, or random access memory, is very fast and stores the information and data being entered on a computer at the time it is being used. Once the system is shut down, the RAM information is lost.
Peripheral Devices
The keyboard, mouse and monitor are peripheral devices that are attached to the computer system so it can be used.
Peripheral devices are hardware components that are needed to use a computer. Common peripheral devices include the mouse, keyboard, monitor, external speakers and printer.
System Software
Without an operating system, which is software, a computer could not be used. According to ComputerHope.com, an operating system is a software program that enables the computer hardware to communicate and operate with the computer software. Some examples of operating system software are Microsoft Windows, Linux and Unix.
Tags: operating system, cannot seen, cannot seen removed, computer physical, computer physical equipment, hard drive