1. Hardware
1.1. Computer architecture
1.1.1. Computer architecture is a set of rules and methods that describe the functionality, organization and implementation of computer systems.
1.2. Processing power
1.2.1. The power of the central processing unit (CPU) is a fundamental system requirement for any software. CPU can be found on motherboard.
1.2.1.1. AMD Athlon
1.2.1.2. Intel Pentium
1.3. Memory
1.3.1. Read Only Memory
1.3.2. Random Access Memory
1.4. Secondary storage
1.4.1. Hard disk
1.4.2. Solid State Drive
1.5. Display adapter
1.5.1. For software that require a better than average computer graphics display, like graphics editors and high-end games
1.6. Graphics
1.6.1. Graphic card
1.7. Peripherals
1.7.1. Input devices
1.7.1.1. Mouse
1.7.1.2. Keyboards
1.7.1.3. Microphones
1.7.1.4. Scanner
1.7.1.5. Webcam
1.7.2. Output devices
1.7.2.1. Speakers
1.7.2.2. Monitor
1.7.2.3. Printer
1.7.2.4. Projector
1.7.2.5. Wireless
2. Software
2.1. Platform
2.1.1. Microsoft Windows
2.1.2. Linux
2.1.3. OpenVMS
2.1.4. Solaris
2.2. Web browser
2.2.1. Most web applications and software depending heavily on Internet technologies make use of the default browser installed on system
2.2.1.1. Internet Explorer
2.2.1.2. Mozilla Firefox
2.2.1.3. Google chrome
2.2.1.4. Opera
2.3. APIs and drivers
2.3.1. Software making extensive use of special hardware devices, like high-end display adapters, needs special API or newer device drivers
2.3.2. DirectX