Complex sentence: Online Armor Personal Firewall is a firewall originally developed by Australian company Tall Emu, until the program was sold to Emsi Software GmbH. The program provides protection on a Microsoft Windows operating system from both inbound and outbound attacks.
Split into simpler sentences: Online Armor Personal Firewall is a firewall originally developed by Australian company Tall Emu. Until the program was sold to Emsi Software GmbH. The program provides protection on a Microsoft Windows operating system from both inbound and outbound attacks.