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Glossary

Internet vocabulary, defined.

Bandwidth
The maximum amount of data that can be transmitted over an internet connection in a given time, usually expressed in megabits per second (Mbps).
Download speed
How fast data can be transferred from the internet to your device. Higher download speeds support smoother streaming, faster page loads, and quicker app downloads.
Upload speed
How fast data can be transferred from your device to the internet. High upload speeds matter for video calls, cloud backups, and live streaming.
Latency (Ping)
The round-trip time between your device sending a request and receiving a response, measured in milliseconds (ms). Lower is better — especially for gaming and video calls.
Jitter
The variation in latency between successive data packets. High jitter causes uneven performance in video calls and gaming.
Packet loss
The percentage of data packets that fail to reach their destination. Even a small amount of packet loss degrades streaming and call quality.
Mbps
Megabits per second. The standard unit for measuring internet speed. 1,000 Mbps = 1 Gbps (gigabit per second).
ISP
Internet Service Provider — the company that connects your home or device to the internet.
Wi-Fi
Wireless networking technology that lets devices connect to a router via radio waves instead of cables.
Ethernet
A wired networking technology that connects devices via a cable. Generally faster and more stable than Wi-Fi.