Final answer:
Networking symbols, such as a modem for wired connections, a server as a central hub, a computer representing a client device, and a firewall depicting network security, are used to illustrate network components and their functions. They differ from a wireless router symbol which combines features of a modem and router for wireless device connectivity.
Step-by-step explanation:
In the context of networking, various symbols are used to represent different devices:
- a) A modem symbol, which often appears as a rectangle with one or two arrows to show the direction of communication, represents a wired connection to the internet. Unlike a wireless router, a modem translates data between the digital signals used in computer networks and the analog signals used on phone lines or cable systems.
- b) A server symbol may look like a rack of hardware or a tower, signifying a powerful computer that provides data to other computers connected to the network. It acts as a central hub in a network, serving multiple clients.
- c) A computer symbol normally appears as a monitor with a base unit, or just a screen for laptops and all-in-one PCs, representing a client device that accesses resources on a network.
- d) A firewall symbol is represented typically by a brick wall or a shield, symbolizing network security which monitors and controls incoming and outgoing network traffic based on predetermined security rules.
These symbols help to visualize the layout and connections of a network in diagrams. They differ from a wireless router, which is a device that uses microwaves within the 2.4 GHz to 5.0 GHz range to connect wireless devices to the internet, providing both the functions of a modem and a router in one, allowing devices to connect to the internet without the need for wired connections.