????三星

????蓋世（Galaxy）平板電腦是iPad的最大競爭對手，雖然它與iPad的差距還有點遠。根據IDC的數據，2012年第一季度，三星售出了160萬部蓋世平板，而蘋果iPad的銷量為1180萬部。蓋世平板電腦獲得了相對不錯的評價，而且被認為是iPad最好的替代產品。所以，蘋果現在為了束縛三星，頻頻對其提起知識產權訴訟，這也就不足為奇了。

????戴爾（Dell）

????和許多計算機硬件制造商一樣，戴爾在平板電腦市場也開展地不甚順利。雖然戴爾推出了Streak 5迷你平板，和更大一點的Streak 7，但兩款產品反響平平，戴爾不得不隨后停止生產。戴爾仍計劃推出一款新的搭載Windows 8的平板電腦。

????思科（Cisco）

????與其他高科技公司不同，思科推出的平板電腦Cius瞄準的是企業級市場。其想法是，思科有企業用戶頗有淵源，而且目前與許多IT部門都有著合作關系。然而，這一理論沒有奏效。思科進行了旨在專注于自身核心產品的大規模重組，并因此在上月終止了Cius業務。

????譯者：項航

????Samsung

????The Galaxy Tab is the iPad's closest challenger, albeit a distant one. It shipped 1.6 million tablets in the first quarter versus 11.8 million for Apple, according to IDC. The Galaxy Tab has received relatively good reviews and is considered a credible alternative to the iPad. Not surprisingly, Apple is on the attack via a copyright infringement suit against Samsung that is winding its way through court.

????Dell (DELL)

????Like most of its fellow computer hardware companies, Dell has had a troubled relationship with tablets. It came out with the Streak 5, a mini tablet, and then the Streak 7, a larger version. But they got little traction and were discontinued. Dell plans another consumer tablet that runs on Windows 8.

????Cisco (CSCO)

????Unlike the other tech companies, Cisco focused its tablet, Cius, on the enterprise market. The thinking was that Cisco has a long history with business users and an existing relationship with many IT departments. That theory did not pan out, however. Cisco, as part of a larger reorganization that is focusing the company on its core products, pulled the plug on the Cius last month