Hardware - the parts that make up a computer. Hardware is what will cost you when you spoil, and not software. Whether what you may have or want is a simple computer or a gaming system, Hardware is what is needed before you can even claim the rectangular box as a 'computer'. "Devices" is the general word for hardware, for example, a device may be any part of your computer, such as the hard disk.
More about Hardware Devices
The Motherboard - The brain of the computer.
Storage Devices - Hard disks, CD-ROM drives and Floppy Drives, etc.
Input Devices - Keyboard, Mouse, Scanner
Video Devices - Monitors, video accelerators.
Sound Devices - Sound Cards and speakers
Network Devices - Ports and ethernet cards
Make your own computer - A step-by-step manual to teach you how assemble/build your computer!