Tablet computer sales expected to top 55 million in 2011

The number of tablet or slate computers sold worldwide this year is expected to increase by nearly 200% to 55.7 million units according to recent report from DisplaySearch.

The firm also predicts the slate PC share of the overall mobile PC market, which also includes notebooks and mini-notes, will rise to nearly 35%, or 172.4 million units, by 2014. The total shipments of the mobile PC market are expected to reach 503.8 million units by 2014.