Technology
Exploring "Why" questions about Technology
491 articles
Why is that computers connect to just one wifi connection and not multiple ones at the same time?
Wifi cards only have one tuner and transmitter, think of it like a standard radio. You cant tune to 2 stations at the same time, a transmitter can only transmit on one station at a time as well.
Why do mobile phone companies cap data on a monthly basis, but I have unlimited Internet access through my cable provider?
To prevent complete saturation of the cellular bandwidth, and to persuade you to pay them ridiculous quantities of money for more bandwidth allocation.
Why does an image formed by pixels on a screen remain sharp, when light tends to spread out over distance?
The image from the screen *does* become wider as you get away from it, the same way it does from a torch (or, for our American friends, a flashlight - I had a very amusing conversation with an America
Why do WiFi, BlueTooth, and radio signals not all interfere with each other?
WiFi and bluetooth is on a frequency band that is very crowded. They are both built to tolerate interference. If a signal does not get though just try again.
why does reddit work perfectly when I’m using mobile data but not when I’m using WiFi?
There's not enough information here. Could be your phone. Could be your wifi.
why do we have to “safely remove” USB devices?
[here](_URL_0_) is a good explanation. tl;dr osx and linux uses write caching which means the OS waits until a decent amount of data is queued to do the writing since many little jobs is more expensiv
Why do some websites still use “www.” before their domain name and some simply don’t? What’s the purpose of it anymore?
The "www" is what's termed a "subdomain". Originally, the "www" (which stands for "world wide web") was used to indicate that you wanted the web server for the domain you entered in, as opposed to som
Why isn’t all internet data encrypted?
Encryption adds overhead, notably CPU time in encrypting/decrypting the payload and the accompanying latency of doing so. The vast majority of traffic gains no benefits from being encrypted, so it wou
Why do I have two bars of WiFi signal when I lie on my left side, but when I lie flat on my back I loose my Wifi altogether? Surely a few centimetres shouldn’t make a difference?
Wifi signal can act like waves in a pool. Up and down all over the place, but sometimes there is a dead spot where the waves bouncing off the walls cancel each other out. Try moving the router, or eve
Why adware and spyware makers and utilizers arn’t prosecuted for unwarranted wiretapping or hacking.
> Edit: BTW SpyHunter seems to be the best scan/removal tool around. Most others I tried, scans returned clean or very few threats. Just because it finds lots of errors does NOT mean it's good.