The electronic speed of PCs and accounting software gives the appearance that a large portion of the accounting and bookkeeping errands have been killed or are happening all the while. For example, a Sales Invoice preparation will naturally update the important general ledger accounts (Sales, Accounts Receivable,Inventory, Cost of Goods Sold), update the client's detailed information, and store the data for financial statements as well as different reports. The accounting software has been composed so that each transaction must have the debit amounts equivalent to the credit amounts. The electronic precision additionally dispenses with the errors that had occurred when amounts were physically written, modified and calculated. Accordingly, the debits will always equal the credits and the trial balance will always be in balance. No longer will hours be spent searching for mistakes that happened in a manual system..