A port is a numeric identifier for software that runs on a computer, like Web server or email server software. When a port is open, it's accepting connections from the outside world. It's not uncommon ...

Data sent over a network is directed through specific ports, numbered 1 through 64435. A computer uses port numbers – similar to channels on a television – to determine how network traffic should be ...

Though Firewalls are necessary when your computer is connected to the Internet, they can cause problems trying to get Internet aware programs working properly. For example, if you wanted to host a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. With its three USB 3.0 ports, you'll be able to connect devices like portable hard drives, ...

QUESTION: Currently my Windows XP Professional computer has only two USB 1.1 ports. Can I add a PCI card with two USB 2 ports? Do I have to remove the USB 1.1 card? If I want to add a USB hub, does it ...

Users of the new Apple MacBook laptops with limited USB-C ports know how important port hubs are to increase the capacity of connections. They can include Ethernet ports, memory card readers, USB-A ...