वह कंप्यूटर सॉफ़्टवेयर जिसका अंतर्निहित सोर्स कोड सार्वजनिक किया जाता है और संशोधन तथा पुनर्वितरण के लिए उपलब्ध होता है, कहलाता है:

Which of the following refers to software whose source code is freely available and can be customized and altered within the guidelines laid down by creator?

Which category of software helps users in system maintenance and routine tasks, such as formatting disks, backing up files, and managing storage?