Basic Elements & Networking

Basic Elements & Networking

1. Network basic elements

   • Modem. The first thing you need to start a network is a modem that’s connected to an ISP (Internet Service Provider). A central Internet connection is the foundation of a network. Router.
   • Devices. The last step to creating a network is assembling the actual devices. The hardware you use can include desktop computers, laptops, netbooks, TVs, gaming

2. data transmission media

   • An electrical signal is in the form of current. An electromagnetic signal is series of electromagnetic energy pulses at various frequencies.
     • Wired or Guided Media or Bound Transmission Media
     • Wireless or Unguided Media or Unbound Transmission Media

3. networking topologies

   • ring
   • start
   • Bus
   • Tree