Manual Systems: This is the traditional type of AIS, which uses paper-based forms, ledgers and journals to record transactions. It relies on manual data entry and calculations, and it is typically used by small businesses or organizations with low volume of transactions.
Computerized Systems: Computerized systems are an electronic version of manual systems, which use software to record, process, and store financial information. These systems can be either stand-alone or integrated with other software and systems.
Enterprise Resource Planning (ERP) Systems: These are integrated systems that automate and streamline the entire business process of an organization, including financial management, human resources, manufacturing, and supply chain management.