Most do not, you can buy a standalone hardware firewall if you wish to do so.
no you must purchase them
i think it was in the summer of 2002
to connect multiple computers to the same internet connection, and to network the computers together Routers allow multiple computers to share a single internet connection. This helps save a lot of money. Apart from this, routers also add a safety element to a local network. The individual IP addresses of the computers on the local network are never exposed to the internet. Instead only the external IP address of the router is publicly known. Moreover, many routers come with additional features like firewalls, filters and other security enhancing abilities.
Alarm systems come in two basic forms. Wireless & wired. A system that is "hardwired" is simply a wired system. A home that has been prewired for an alarm means that the hardwire has already been run, generally when the home is initially constructed.
A router is primarily a layer 3 device that connects one network via a port to a switch on another port. Most home routers today come with an integrated switch (multiple ports). As such, a router would not contain a hub. Some routers may also have built-in firewalls and VPN tunneling capabilities, including auditing and logging functionality. They may also contain DHCP and NAT capabilities which you typically won't find in a switch.
Passive Hubs These hubs are nothing more than point contacts for the wires that make up the physical network. An example of this would be a punchdown block that is a simple plastic, unpowered box used to plug network cables into it. Active Hubs Active hubs are a little smarter than the passive hubs we saw. All You might also come across the term "concentrators" which are basically active hubs, concentrating and strengthening a signal as it enters and exits the hub.
Many routers come with hardware support built in to protect your connection from those attempting to hack or disrupt your service. Many netgear routers come with firewall support built in, as do buffalo and D link router equipment.
Yes, it comes with an small AC adaptor
I think firewalls can be both software and hardware. When you buy computers, it will usually always come with a limited time only antivirus and firewall.
THEY COME WITH HUBS AND STUDS ITS A BOLT IN UNIT
normally a router will come with a power cord,software if needed,and an ethernet and usb cable.
All new boxed, sealed routers, regardless of where you purchase it, should come with all the necessary cords, leads, everything