1. Computer Hardware

2. Microcomputer Systems Handheld Computers – PDA, Information Appliances Notebook Computers Desktop Computers

3. Microcomputer Systems Workstations – Support applications with heavy mathematical computing or and graphic display demands Network Server – Powerful microcomputer used in – small LANs

4. The Keyboard - Standard Keyboard Layout A standard computer keyboard has about 100 keys. Most keyboards use the QWERTY layout, named for the first six keys in the top row of letters