Newly published data from the American Customer Satisfaction Index shows Apple ahead other PC makers, including Dell and HP.

On a 100 point scale, Apple achieved a score of 83, according to the ACSI, a 2.5 per cent year-on-year increase and a 7.8 per cent increase from 1995, the first year the ACSI measured the PC industry.

The annual ACSI is sponsored by the American Society for Quality (ASQ) and the University of Michigan. It's derived from phone interviews with over 70,000 consumers.

Both Apple and Dell advanced this year - Dell moved up 5 per cent to a score of 78, despite slipping market share and lower earnings. Overall customer satisfaction in the PC industry increased 4 per cent to 77, the highest score since the ACSI began tracking the industry. All PC makers showed improved satisfaction this past year, the results showed.