Warehouse Picking The computer downloads a table to a portable terminal and the operator is prompted to pick a list of items associated with a specific order. Time and Attendance Employee badges with bar codes are read at clock-in and clock-out into a computer or terminal to provide attendance data to the computerized payroll program. The operator scans the codes of the items and then uploading the stored scanned data to the computer later, thereby correcting the computer’s mobile barcode scanners files for what is actually on the floor. Stock Taking The classic portable bar code reader application. Test them with a bar code on the remittance stub or the invoice stub so that when the customer returns the stub with his payment, it can be wanded to bring up the data or to complete full payments. Whatever method you use, you should have your printer make test print runs. After printing, the ink in bars tends to bleed slightly into the spaces.