No. A PS3 and a computer can be ran at the same time. A internet wireless network box is able to send a signal to multiple devices.
Both. The router makes the internet accesible to many computers/PS3's.
No
Some downloaded games from the internet require internet be activated on a PS3 and will not work without it.
PS3 games play only on the Playstation Network when the PS3 is connected to the internet
You CAN Buy it Online with A PSP or PS3. No, there is NOT Crash Team Racing in a Flash form on the Internet.
No cricket can not be your internet provider for the PS3
All games players that play PS3 online play on the internet through PS3 and PlayStation Network. The PS3 can also access the web and you are very limited with what you can browse compared to a PC.
You can not connect the PS3 to the phone
Get a PS3 and an internet connection
You can not for an internet connection.
Yup, in order to play online you need internet.
Yes. You can't play online without active internet.