1.百度云：
百度云是百度公司提供的云服务。它提供云存储服务、客户端软件、文件管理、资源共享和第三方集成。一旦在客户端上创建文件，它就可以在基于 Internet 的客户端上自动同步文件。它由百度公司于2012年推出。它的实际名称是百度网盘，但俗称百度云。
2.泽塔：
Zetta 是由 Zetta Incorporation 提供的文件同步服务和基于云的备份存储服务。它由Jeff Whitehead 、 Lou Montulli和Jason Harrison 开发。它主要用于中小型企业和企业。它不提供免费软件版本。它主要用于存储专业数据而不是个人数据。它于2008年推出。
百度云和Zetta的区别：
| BAIDU CLOUD | ZETTA |
|---|---|
| It is owned by Baidu Incorporation. | It is owned by Zetta Incorporation. |
| It was launched in 2012. | It was launched in 2008. |
| It offers 6 GB free storage space. | It does not offer freeware service. |
| It was developed by Baidu Inc. | It was developed by Jeff Whitehead, Lou Montulli and Jason Harrison. |
| It is a file hosting service. | It is a file synchronization service. |
| It provides cloud storage service. | It provides cloud based backup service. |
| It is used by individuals, small and larger enterprises. | It is used by small and medium sized enterprises. |
| It does not provide LAN synchronization. | It provides LAN synchronization. |
| It provides storage service for personal data. | It does not provide service for personal data and is used for professional work only. |
| It provides services only in China. | It provides services world wide. |