True.
Windows is an operating system built by Microsoft. Chrome and Android are operating systems built by Google. MacOS (Macbook pro etc) and iOS (iPhone, iPad, Apple Watch etc) are operating systems built by Apple.
Engineers build applications or apps for all of the above operating systems (OS). For example, Microsoft Word menus will look slightly different on Windows vs on a Mac. The underlying functionality maybe the same but the way it looks may have subtle differences.
Think of the OS as the foundation of a building. Once you have the foundation, you can build a house, a skyscraper, an office building etc depending on what you want to build.
Answer:
ICMP.
Explanation:
Hackers might use ICMP for gain knowledge about current system addresses and specific procedures as part of a reconnaissance process.
ICMP is a failure informing system used by network protocols such as routers to produce warning to that of the source Address while network issues interrupt IP packet transmission.
The purpose of the operating systems is to provide an interface between the user and hardware. It's mange all resources, for example; memory, processors, and disk space. It's also mange how to file and store data in a computer system.
Answer: sight, color, emotion, sound, motion
