Yes, it definitely is. Wi-Fi is the layman's term for wireless connectivity (WIreless FIdelity). There are different adapters and wireless protocols that can be used to connect wirelessly. A router may send a wireless signal using the 802.11b standard. For your computer to pick up that signal, it must have a wireless adapter compatible with the 802.11b standard. Most laptops have these built-in adapters. Desktops can be made to go wireless by plugging in and installing an external wireless adapter.
So, if a computer has a 802.11b/g/n wireless LAN, that means that it could connect to almost any WiFi hotspot. This is so because the current and most widely used router WI-FI signals that are transmitted are using the 802.11b, 802.11g and the 802.11n wireless standards.
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