The meanings of "GB" are: Great Britain, the first generation of Nintendo's Game Boy series, Nintendo's Game Boy series of handheld consoles, cosmetics brands, computer storage units, etc.

1. Computer storage unit. In China, it is also called Jiga Byte, Jing Byte, Gigabyte or Ji, often abbreviated as G, which is a decimal unit of information measurement. Gigabyte is often confused with Gibibyte, the binary unit of information measurement. It is often used to indicate the storage capacity of storage media with larger capacity such as hard drives and memories.

2. Nintendo's Game Boy series of handheld consoles. In 1989, Nintendo launched the Game Boy game console, which came with a Tetris cartridge (still the most popular game today). It is still the best-selling portable game console to this day. Game Boy was officially released on April 21, 1989. The designer is Gunpei Yokoi.

3. GB/T refers to recommended national standards (GB/T), and "T" here reads "push". Recommended national standards refer to national standards that are voluntarily adopted through economic means or market regulation in production, exchange, use, etc.

Any unit has the right to decide whether to adopt such standards, and will not bear financial or legal responsibility for violating such standards. However, once accepted and adopted, or all parties agree to incorporate it into an economic contract, it becomes a technical basis that all parties must abide by and is legally binding.

4. Great Britain, Great Britain. The United Kingdom of Great Britain and Northern Ireland, referred to as "the United Kingdom", is located in the British Isles northwest of the European continent and is surrounded by the North Sea, the English Channel, the Celtic Sea, the Irish Sea and the Atlantic Ocean.