The concept is different. VC buy shares/equity of a company.
The company may be owned by a group of individuals (they may or may not have invested money, but they are typically founders of the company)... When a VC invest in Equity of a company, they get some percentage of ownership in the company...
So lets say I want to start a company and require $50K. Would the VCs invest $50K and get some ownership in the company?
If they believe in your company and founders: Yes
Business angels, more likely. Or even just friends and family, ideally, for 50k.
$50K was just a rough sum to understand whether VCs or Angles invest 100%.