Computer hardware consists of a wide range of components. Basically every component that you can touch is considered as hardware.
There is the ‘computer’ itself, which can be a desktop, laptop or tablet computer. Businesses often use a server for central storage of files.
The computer then uses Peripheral devices such as a screen, a keyboard and a mouse. In addition to that most users connect their compuer at some point to a printer, an external hard drive, a USB flash drive and or speakers.
Some desktop computers come as an ‘all-in-one’, where the computer and the screen are one unit.
2-in-1 devices are generally laptop computers with a touch screen that can be used as a tablet computer too.
You also need some network device (modem or router) to connect your devices to the Internet.