<h2>True</h2>
<h3>Reason;</h3>
We have got so many discoveries just bcoz of this investigation by scientists.
<span>You can install several printers on your machine, but at least one must be the default printer.
When you have several machines attached to your computer, it is important to designate one of them as the 'default' machines so as to avoid confusion within the system. If you fail to do this, you may create some problems, so be sure to choose a default one.</span>
Answer:
Los humanos interactúan con las computadoras a través de una interfaz de usuario
Answer:
personal digital assistants (PDAs)palmtop
Pretty sure answer is <span>E-mail spam</span>
