Natural systems are systems that came into being by natural processes. Like the rain cycle.
Technological systems are those to whom people intervened or designed. Like diverting water for a rider for land irrigation.
Answer:
A peer-to-peer network is one in which two or more PCs share files and access to devices such as printers without requiring a separate server computer or server software. ... A P2P network can be an ad hoc connection—a couple of computers connected via a Universal Serial Bus to transfer files.
Answer:
1.headings and subheadings
2.manually
3.options
That is encryption. Encrypted files usually have a password assigned. In order to decrypt the file, you need to have the password.
