The NHS is the National Health Service, which provides healthcare free at the point of access for all UK residents. The NHS owns hospitals and pays for doctors and nurses.
It's a form of broadband internet access that uses the cable television infrastructure.
A service is a program on the computer that provides a function for your software, such at the NetBIOS service that connects windows workgroup machines, or the DHCP Client that acquires a network address for your computer when you connect to the internet. A protocol is a language the computer uses to exchange information. For example, TCP/IP is used to negotiate connection and transfer data over the Internet, and HTTP is a protocol that handles transferring data between WWW servers, and clients.
Ping uses ICMP, and therefore resides at layer 3 (Network layer)
a default gateway is the default access point a computer or device uses to connect to the internet.
You could try at McDonalds' or Subway, they often have free wi-fi for customers.
See "What does the ozone layer do?"
Transport layer
Sequential data is what uses access. This is used in science.
CAN TV stands for Chicago Access Network Television. It's a public, government access and educational cable television service. It is located in Chicago, Illinois.
Layer 4 (Transport)
The function of a wireless access point is to allow wireless devices such as projectors, laptops and PDAs to access a local area network. Wireless access points mainly act as switches to spread connections wirelessly. The difference between an access point and a router is that access points do not assign IP addresses nor do they have firewalls; they only lock out traffic that does not have the wireless key.