| Keyword | Definition |
|---|---|
| Android | open source operating system for tablets and smart phones made by Google |
| Closed source | type of software which you usually have to pay for which you can't add your own bug fixes or features. |
| iOS | closed source operating system for Apple iPads and iPhones |
| Linux | open source operating system often used on web servers or by developers |
| macOS | closed source operating system for Apple Mac desktops |
| Open source | type of free software which anyone can download or add your own features or bug fixes |
| Operating System | software which runs on a computer and allows the user to load apps or manage settings |
| Windows | closed source operating system for laptops, tablets and desktops made by Microsoft |
