1. Servers: Host eBusiness and other kinds of server applications
2. PCs: Host client operating systems, personal applications, and Web browsers
3. Handheld devices: Work with networks to perform a specific function, such as checking email
4. Storage products and peripherals: Store, scan, digitize, and display data

Every part of your computer is the result of years of research and development. Parts that were once hand made at a cost of thousands of man-hours are now mass produced for a fraction of a dollar. Computer parts can be divided into two groups, hardware and software.
Computer hardware are the physical parts or components of a computer, such as the central processing unit, monitor, keyboard, computer data storage, graphic card, sound card and motherboard. Software consists of instructions that can be stored and ran by hardware. Software is aset of electronic instructions consisting of complex codes (Programs) that make thecomputer perform tasks. Windows is an operating system.
Other types of software and applications run on your computer. While there are thousands of parts even in the smallest computers that make up its hardware, you are not required to know them all. You only need to know about basic computer hardware.