Unwanted or unneeded software included by manufacturers on new computers is called

The answer is called bloatware. This is unneeded files that are actually on the computers which are already there even if it's new. It doesn't have any essential function and sometimes is a trial version. The application also adds up space which limits your free space storage. In other words, because it has no significant tasks to handle it is unnecessary, but it only serves as an additional profit to the company once it is purchased by the buyer.

Bloatware may also come especially in adware where a lot of extension applications are sometimes automatically installed after it is allowed to operate in just a click. The only solution for a bloatware is to uninstall it.  .

According to my brain it's a rational number because it can be put as a fraction