Longhorn
The codename given to a Microsoft operating system while in its development and beta phases. The Longhorn codename is the operating system that was released under the official name of Windows Vista. Vista was released worldwide on January 30, 2007.
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- Longitudinal recording
A method of recording data to a hard disk drive (HDD). Used over the last 50 years, Longitudinal recording aligns data bits horizontally in relation to the drive’s spinning platter, parallel to the surface of the disk. Contrast with Perpendicular recording.
- Lotus 1-2-3
A spreadsheet program designed for IBM-compatible personal computers by Lotus Corporation in 1982. Lotus 1-2-3 was the first publicly available program to combine graphics, spreadsheet functions and data management (three functions, hence the name). Its relative ease of use and flexibility made it an enormous success and contributed to the acceptance of personal computers in […]
- Lotus Domino
An IBM server application platform used for enterprise e-mail, messaging, scheduling and collaboration. Lotus Domino was previously called Lotus Notes Server and was initially the server component of Lotus Corp’s client-server messaging technology. Lotus Domino provides the complete infrastructure needed to create, test, deploy, and manage distributed, multi-lingual applications, including directory, database, application server, administration, […]
- Lotus Notes
A groupware application developed by Lotus, now part of IBM. Notes was one of the first applications to support a distributed database of documents that could be accessed by users across a LAN or WAN. Its sophisticated replication features enable users to work with local copies of documents and have their modifications propagated throughout an […]
- Luhn formula
Based on ANSI X4.13, the LUHN formula (also known as the modulus 10 — or mod 10 — algorithm ) is used to generate and/or validate and verify the accuracy of credit-card numbers. Most credit cards contain a check digit, which is the digit at the end of the credit card number. The first part […]