Wi-Fi (802.11b): Cutting the Ethernet Cord
I’ve spent the better part of my career crawling under desks, crimping Cat5 cables, and trying to find an available port on a patch panel. Our laptops have always felt like "portable desktops" because they were still tethered to the wall.
But with the arrival of 802.11b-branded as "Wi-Fi"-and especially Apple's affordable AirPort base station, the cord has finally been cut.
11 Mbps in the Air
The 802.11b standard operates in the 2.4GHz ISM band. It offers a theoretical maximum speed of 11 Mbps. In practice, you get about half of that, but compared to a 56k modem, it feels like a lightning bolt. And compared to 10Mbps Ethernet, it’s "close enough" for most work.
The tech uses Direct-Sequence Spread Spectrum (DSSS) to help deal with interference from microwave ovens and cordless phones.
# Basic Wi-Fi configuration (if you're on Linux/BSD)
# We're starting to see tools for this:
ifconfig wi0 ssid "MyNetwork" media DS/11Mbps
The "Coffee Shop" Office
The implications are huge. I just saw someone working on their laptop in the breakroom-no cables in sight. We’re going to see a shift in how offices are designed. Why sit in a cubicle when you can sit on a couch?
Security Concerns
As a developer, I’m a bit worried about WEP (Wired Equivalent Privacy). The encryption seems... thin. Since the data is literally flying through the air, anyone with a high-gain antenna in the parking lot could potentially listen in. We're going to need much better security before we can trust this for sensitive data.
But for now, the sheer freedom of being able to walk from my desk to a meeting room without losing my connection is intoxicating. The era of the "wired" office is ending.
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