At the moment, TweetDeck by Twitter is not available for direct download on a computer. However, you can use emulators to run it on PC. The downside is that using TweetDeck by Twitter with an emulator might slow down your computer's performance.
Learn how to use TweetDeck by Twitter on your computer in these 5 simple steps:
TweetDeck makes it easier for publishers, marketers and power users to track the real-time conversations they care about. It brings more flexibility and insight to power users through a customizable layout that lets you keep up with the people and topics that matter most to you. And, you can join the conversation by tweeting, sharing photos and links to news stories, and more.