Which of the following describes one of the four major tasks performed by an information system?

One of the four major tasks performed by an information system is input. This involves the collection and entry of data into the system, which is a fundamental step for any information system. Input serves as the foundation for processing, storing, and ultimately producing meaningful information. Without proper input, the system cannot function effectively, as it relies on accurate and relevant data to generate outputs that are useful for decision-making.

Analysis, distribution, and forecasting, while relevant aspects of information systems, do not encompass the initial and crucial task of input. Analysis pertains to the examination and interpretation of the data, distribution relates to how the information is shared across the organization or stakeholders, and forecasting typically involves predicting future trends based on data analysis. These tasks rely on the data that is first captured through the input stage, highlighting the importance of this foundational task.