What are the differences between the below, keep reading profiles in Wikipedia and can't understand the financ

Question

Revenue

Operating income

Net income

Total assets

Total equity

Answer 1

Revenue is your sales, your income in gross (before any deductions)

Operating Income is Revenue minus your operating expenses ;for example in construction your operating expenses would be your carpenters, field labor, gas for their vehicles, tools etc.  

Net Income is Revenue minus all of your expenses

Total assets are all the assets of the company including machinery, office equipment vehicles as well as accounts receivable, bank accts for examples

Total equity is what you have after you take your assets minus your liabilities.