Sun Microsystems is to sue rival Microsoft for more than $1bn (€1.14bn), alleging anti-competitive behaviour on Java programming language.

Software giant Microsoft says it will give some of America’s poorest schools more than a billion dollars in computers, software, training and cash to settle most of the private anti-trust lawsuits filed against the company.

Microsoft plans to delay the launch of a new version of Flight Simulator, its popular computer game that allows players to fly airplanes over New York and other metropolitan areas, because of last week’s terrorist attacks.