Answer:
Disk Operating System
Explanation:
"DOS is a platform-independent acronym for Disk Operating System which later became a common shorthand for disk-based operating systems on IBM PC compatibles."
A. They can only be separate chemically
Answer: Add more cells in series.
Explanation:
Adding more cells in series will add voltage which will increase the power.
Answer:
a. double-cross
Explanation:
Using the blockchain technology in the case of issuing concert tickets solves the problem with double-cross, which is when someone cheats another person who had trusted in them for some transaction. <em>A great asset with blockchain is the transparency with all the transactions because they are registered and cannot be erased or changed.</em>