No, most all laptops come with built in speakers. These speakers usually lack in quality due to the amount of space alloted.
All new laptops come with wireless network cards already built into them
All of the newer hp laptop models do come with built in calculators. If for some odd reason you do not have a built in calculator you can go to Microsoft and download the expansion pack.
I think so, but some can be defaulted and not work. :)
All modern laptops would have the facility built in as standard. That is not to say that all previous laptops would be able to.
All new laptops come with a wireless network adapter.
No, generally not.Most newer laptops come with a built in network card and wireless network, but many laptops come without a modem.If you have a broadband connection, like ADSL (over the phone line) or cable (over the cable TV connection), you will normally get the modem from the ISP.
All speakers can be interchangeable between desktops and laptops, as they all use mini connectors.
Not all of them, most of them.
No, not all computers come with DVD burners built into them. Although they are more common in computers today, they are sometimes an upgrade that must be purchased with a computer.
Yes
Yes. almost all laptops do now. And as in now, I mean March 2010.