Complex sentence: WIND's design is inspired by Domain/OS and RISC OS, it uses a non-WIMP interface, instead of using a mouse for comtrol, it uses a conbination of keystrokes (Up/Down keys and keyboard).
Split into simpler sentences: WIND's design is inspired by Domain/OS and RISC OS, it uses a non-WIMP interface. Instead of using a mouse for comtrol, it uses a conbination of keystrokes (Up/Down keys and keyboard).