piggybacking(redirected from Piggy back)
Also found in: Medical, Financial.
A method for passing acknowledgement frames and data frames in the same direction along a line.
The practice of increasing memory capacity by soldering chips on top of other chips. The chip-enable or high address pins would be connected to the address bus by a flying lead. Many Ohio Superboards were expanded to a massive 8K of RAM in this way.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
piggybacking(1) Gaining access to a restricted communications channel by using the session another user already established. Piggybacking can be defeated by logging out before walking away from a workstation or terminal or by initiating a screensaver that requires re-authentication when resuming.
Piggybacking also refers to someone allowing another person to follow right after them into a restricted area. Also known as "tailgating," this may be done on purpose by a disgruntled employee or just out of carelessness. See replay attack, hijacking and cryptojacking.
(2) Using a Wi-Fi hotspot of neighbors who have not secured their network. See Wi-Fi piggybacking and Wi-Fi hotspot.
(3) Embedding the names of popular brands or companies into the hidden meta-data of a Web page in order to rank high up on a search engine's results page. See meta tag.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.