Sony has announced that it plans to launch its first tablet computers, codenamed S1 and S2, in the fall of this year.

The company did not disclose many details except to say the S1 would feature a single 9.4-inch display while the S2 would have two 5.5-inch displays which could be folded for easy portability. Both devices will have front and rear cameras, WiFi connectivity, DLNA compatibility and will run on Google's Android V3.0 operating system.

Sony's decision to enter the tablet market has been known for months but comes much later than most manufacturers, it is last among the world’s top 10 laptop makers to unveil tablet plans.

Kunimasa Suzuki, deputy president of Networked Products & Services Group of Sony Corp defended the late arrival telling reporters "“Demand for tablets is still small, we aim to attract consumers out there, who haven’t purchased one.”

The global tablet-computer market to reach annual sales of between 50 million and 60 million units this year, and between 70 million and 80 million in 2012.

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