Final answer:
As of the latest data, the leader in video-game sales has not been stated. Companies like Sony, Microsoft, and Nintendo are traditionally strong competitors in this field. For historical context, Microsoft faced concerns over monopoly power in the mid-90s.
Step-by-step explanation:
The company that currently leads in video-game sales with nearly 50% of all sales has not been explicitly mentioned, and the video game market is very dynamic with different leading companies in hardware, software, and overall sales at various times. However, historically, companies such as Sony, Microsoft, and Nintendo have been well-known leaders in the video game industry. Choices such as Valve Corporation are known for their digital distribution platform rather than hardware sales. It's essential to have the most recent data to determine the current leader in video-game sales since market share can change rapidly due to new game releases, console updates, and changes in consumer preferences.
In relation to the historical reference provided, in the mid-90s, the U.S. government was concerned that Microsoft had monopoly power over the choices and prices of computers.