The line between "smart TV" and "computer" is blurrier than it’s ever been. Depending on your model, you may be able to co. and computers continue to get cheaper and cheaper. Come to think of it, the battery life on the Logitech Wireless Marathon Mouse M705 could very well outlast your next computer. With just two AA batte. Wireless NIC: Your computer needs a wireless network information card, or NIC,…