This paper presents a computer remote control system using speech recognition technologies of mobile devices and wireless communication technologies for the blind and physically disabled population as assistive technology. These people experience difficulty and inconvenience using computers through a keyboard and/or mouse. The purpose of this system is to provide a way that the blind and physically disabled population can easily control many functions of a computer via speech. The configuration of the system consists of a mobile device such as a smartphone, a PC server, and a Google server that are connected to each other. Users can command a mobile device to do something via speech; such as writing emails, checking the weather forecast, or managing a schedule. These commands are then immediately executed. The proposed system also provides blind people with a function via TTS(Text To Speech) of the Google server if they want to receive contents of a document stored in a computer.