Application Programming Interface (API) is a set of commands, functions, protocols, and objects that programmers can use to create software or interact with an external system. It provides developers with standard commands for performing common operations so they do not have to write the code from scratch.
Operating system APIs are typically integrated into the software development kit for the corresponding program. For example, Apple's Xcode IDE allows developers to drag and drop elements into an application's interface. It also provides a list of available functions and includes syntax highlighting for known elements and commands. Operating system APIs have a robust set of features.
What do you mean pieces? Like Laptop components? If so then motherboard,ram,cpu, and psu for a basic laptop so 4 I guess (5 if you want to include a gpu).
<span>The RAID level 2 could give high
information exchange rates and would be straightforward contrasted with other
Raid levels. Be that as it may, it has a high cost and would need a high rate move
required with a specific end goal to legitimize this cost.</span>