Built in means that it is comes with wifi ability right out of the box. So, you will get built in wifi if you buy a laptop that has wifi built in. In the specifications, look for WiFi, WLAN or for 802.11b 802.11g 802.11n and the laptop has the capability.
Most laptops with Wi-Fi capabilities do not need anything special done to connect to the internet. If you need to setup up your own personal Internet connection, you need to visit the Network and Sharing Center.
Yes, you can use a WiFi connection with this laptop with no problems.
You setup a portable hotspot from a personal hotspot device such as a cell phone or a tmobile personal hotspot. The personal hotspot can be configured with your laptop. To wirelessly connect a random laptop to a random tablet (since your not specific) both devices be adhoc support. You can google instructions for you specific device. Other way to file transfer is to have both devices on your personal network and use a wifi file explorer program.
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If your laptop doesn't have Wifi included you can buy a USB Wifi adapter at any computer store. The adapter is the size of a standard USB memory stick, with the exception that it has a 802.11 chip and antenna in it. The setup is pretty simple. Simply install the driver that's included onto your laptop, plug in your adapter and your should be ready to connect! :-)
The fact that your other laptop can connect to wifi is irrelevant to whether or not you have disabled wifi on the laptop that is reporting that wifi is disabled. Go into your settings and make sure you haven't inadvertently turned it off.
Wifi is just wireless internet connection.
You cant!
It will work without wifi, yet you need wifi for the store and setup
Basically yes, any laptop with wifi capability and within wifi network will work. Other factors might contribute, is the wifi has public access, can you connect your laptop to the wifi network available and might be the wifi network required certain fee access that you may or not willing to pay.
The majority of laptop manufactures have incorporated Wifi in their laptops. In fact nowadays it would be difficult to buy a laptop without Wifi. Check the popular laptop manufacture websites such as Dell, HP, Compaq, Acer, Apple, Lenovo..etc to find out which laptop models include Wifi.
Means it is certified to use WIfi
no you dont NEED it, but you do need a router(wifi connection) in order to use the internet on the laptop