Visit any job posting website and spend some time at the site examining jobs in accounting, finance, sales, marketing, administrators, personal assistants, data capturers, and human resources. Required: 3.1 Find three descriptions of jobs that require some knowledge of information systems. (3) 3.2 What information systems knowledge do these jobs require? (4) 3.3 Explain how information systems are used in this company. (3) 3.4 Write a 200-word summary of your findings and explain why information systems are essential for running a business today.