What are the four different types of Information Systems categorized by spheres?

The correct answer identifies the four different types of Information Systems categorized by their spheres as Personal, Workgroup, Interpersonal, and External. These categories reflect how information systems are used in different contexts and by different groups of users.

Personal information systems are designed for individual use, focusing on tools that help individuals perform their personal tasks more efficiently. Workgroup systems facilitate collaboration among a small group of individuals working together, allowing them to share information and coordinate their activities effectively. Interpersonal systems support interactions among individuals, often enhancing communication and collaboration within teams. External information systems typically involve broader interactions and sharing of data, often encompassing external stakeholders or clients.

Understanding these categories helps in recognizing how various information systems support different aspects of work and personal activities, aligning technology with organizational needs and individual tasks. This framework is fundamental in studying how information systems can be leveraged across various domains and user levels.