MANAGEMENT

Detailed explanation-1: -GNU General Public© (GPL): The GNU is a series of free software licenses that guarantee end users the ability to run, study, share, and modify software. Apache®: The Apache License 2.0 is a free software license that allows users to use, modify, and distribute the software for any purpose.

Detailed explanation-2: -Open-source software OSS is computer software with its source code made available with a license in which the copyright holder provides the rights to study change and distribute the software to anyone and for any purpose. Hence every open source software is not free.

Detailed explanation-3: -Software published under a Free or Open Source license do not put any restrictions on how the software can be used-that is one of the fundamental freedoms in both the Free Software Definition and the Open Source Definition.

Detailed explanation-4: -Shareware: A software that is initially free and can be distributed to others as well, but needs to be paid for after a stipulated period. Its source code is also not available and hence cannot be modified.