Google’s three-piece set refers to the Google service framework, Google play store, and Google account management program.

Levels

According to GMS, Google grants varying degrees of authorization to Android mobile phones, and roughly divides mobile phone manufacturers equipped with Android systems into three levels.

1. The Android operating system is free to use, but GMS is not embedded. Modern smartphones rarely do not have this embedded.

2. Some GMS services are embedded, but the mobile phone cannot be branded with Google's trademark. There is a service framework from the manufacturer inside the mobile phone.

3. All GMS services are embedded, and Google trademarks can also be used, which must be reviewed and authorized by Google.

Software business

1. Gmail

Gmail is a Google email service. On February 14, 2007, Google ended the Gmail test period and officially opened registration to the public.

2. Blogger

Blogger is a blogging system. In 2003, Google took over Pyra Labs and its Blogger service.

3. Adsense

Adsense is Google's keyword self-service system, which allows users to choose a template to set up keyword ads for their own domain names.

4. Orkut

Orkut is not mentioned on Google's page. Orkut is a service provider created and maintained by Google engineers. Orkut is a social networking service where users can leave their personal or professional information, create relationships with friends or join virtual communities based on their latest interests and hobbies.

5. Notebook

Google Notebook is a service provided by Google that allows users to easily store and organize data collected from the Internet, and use its sharing function Let users make their notes public for others to view. The Chinese version was officially launched in April 2007.