piggybacking

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piggybacking

(1)
A method for passing acknowledgement frames and data frames in the same direction along a line.

piggybacking

(2)
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.
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References in periodicals archive ?
Piggy monkeys Give your child a piggy back, run from one end of the playground to the other.
Treasury 5-year auction preview: the auction may piggy back off of the well received 2-year sale, supported by the flight from risk.
"This means you have to allow them to piggy back on the frequencies of the two existing telcos and this was also acknowledged in private discussions that they be allowed to piggy back on front terms of fair use and reasonable policy, but the ultimate long term solution is equitable allocation of frequencies," he stressed.
They had some wacky moments too, as Trillo gave his girlfriend a piggy back ride.
The Kop boss gave Mane a piggy back after the winger's stunning solo goal in Sunday's 4-3 win at Arsenal.
Maria isn't happy because she's in high heels - but gallant Luke offers her a piggy back.
A WOMAN having a piggy back ride was injured after falling over onto rocks.
Benny gives Berrie a piggy back at South Staffordshire College
They ran up to us asking for piggy back rides as they showed us where they lived.
AINTREE: 12.05 Current Event, 12.35 Stormin Exit, 1.10 Puyol, 1.45 MERIGO (NAP), 2.20 Categorical, 2.55 Devotion To Duty, 3.30 Piggy Back.