Information is an organization's most valuable resource, and therefore information management is an essential responsibility of every organization. Each business process results in one or more documents, while in today's modern process interdependent business processes take place, which is why the number of resulting documentation has greatly increased. Information technology progress has significantly changed office functions, which nowadays are performed in a new way. With technological assistance, information can be stored, transmitted, retrieved and processed for further transmission. The ultimate goal of automation is process improvement, while the effect of office automation is an increase in organizational productivity and quality. Records and documents that are created as a result of the work of institutions and organizations are future archival material, and adopting the records continuum model, i.e. records in continuity, implies the management and care of objects and files, from the moment of their creation until their adaptation. At the beginning of the work, we are acquainted with the theoretical foundations of office business and the computerization of office business. At the core of the paper are the theoretical concretizations of automation, computerization and digitalization of office operations, while the final part looks at specific information systems as well as systems and tools of office operations.