Electronic Data Systems shareholders have voted almost unanimously in favour of a $US13.9 billion takeover by Hewlett-Packard.
HP will pay $US25 per share for the Texas-based technology company.
The deal was signed in May, but needed approval by shareholders regulators in the United States and Europe.
The combined company is expected to create a global powerhouse in computer services to compete against IBM.
HP revenue totaled $US110.4 billion for the year ended 30 April, 2008.
