| A | B |
| Network | Two or more connected computers that share data |
| Communication | Occurs through protocols |
| WAN | Network over large geographical area |
| LAN | Network over limited geographical area |
| (PSTN) | Public Switched Telephone Network |
| IP Telephony | voice transmissions delivered in digital form |
| Mainframe (centralized) computing | Provided the first practical network solution |
| Mainframe liabilities | Handles all the processing work |
| The future of mainframes | Still prevalent in universities and some businesses |
| Two Tiered | 1st: formatting info on screen; 2nd: process logic and storage |
| Three Tiered | 1st: client; 2nd: shared server; 3rd: server and database' |
| Scalable | Can adjust to demands easily |
| NOC | A specific location from which a network is managed and monitored and maintained |
| Protocols | Communication rules |
| Transmission Media | Components necessary to connect computers |
| Network Services | Shared resources |
| p2p | uses software to participate in decentralized networks on the Internet |
| Physical Network Topologies | The basic design of a network. Includes the physical components and layout. |
| Bus Networks | All components use the same cable |
| Star Network | Network nodes are connected through a central device |
| Ring Network | No central connection point |
| Hybrid Network | Combines bus and star and ring topologies |
| Mesh Network | Devices are connected with multiple paths |
| NOS | Manages resources on a network |