What is the Difference between single and double entry system?

So far as I know, Double Entry System and Double Account are not differing in the essential character. They only differ in the way the information is presented. What is presented in Double entry system as profit and loss account is presented in Double account system as Revenue account, Profit and Loss Appropriation account as Net revenue account and what is called Balance sheet is segregated into General balance sheet and Receipts and Expenditure on capital account. The difference in the presentation is also due to the fact that the two systems of accounting serve differing purposes. Double entry places emphasis on the Profits and losses and results of operations while Double account places emphasis on whether adequate provisions are made and whether reserves are sufficient.