Transferring Data

Throughput: current amount of data that can be sent through a cable or space (bits, kilobits, megabits, gigabits, terabits). One data packet arrives within one second

• 1000 bits (bps) in a kilobit (kbps), and so on (mbps, gbps, tbps)

Bandwidth: maximum amount of data that can be sent through a cable or space. Multiple data packets arrive within one second

RJ-11 Jacks and RJ-45 Connectors: common interfaces in networking

• RJ-11: associated with phone lines and four wires (Plain Old Telephone System (POTS)),

  • Dial-up modem, phone lines, fax machines

• RJ-45: associated with standard ethernet cables with 8 wires

  • routers, switches, desktops, laptops, cable modem, modern tech

What technologies allow for wireless networking?

• Bluetooth: standard for short-range wireless interconnection of devices with a range of 30 ft or 10 meters

• Near Field Communication (NFC): standard for exchanging data between devices, usually for a maximum of 6 inches away

  • Examples: Apple Pay