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A multidrop bus (MDB) is a computer bus able to connect three or more devices. A process of arbitration determines which device sends information at any point. The other devices listen for the data they are intended to receive.
The MDB tools project is an open source effort to create a set of software libraries and utilities to manipulate files in the proprietary JET 3, 4 and 5 database formats (used by Microsoft Access.). Version 0.7 was released in June 2012.
MDB originated as a proprietary bus used by CoinCo for their coin-acceptors in the late 1980s and was deployed in high volume in vending machines for Coca-Cola.Coke forced CoinCo to open-source it in 1992 to increase competition, and NAMA released the first version of the standard in 1995, allowing other vendors to compete for the coin-acceptor portion of the vending machines (CoinCo and Mars ...
The provision of a unique append-write mode (MDB_APPEND) [1] is implemented by allowing the new record to be added directly to the end of the B+ tree. This reduces the number of reads and writes page operations, resulting in greatly-increased performance but requiring the programmer to ensure keys are already in sorted order when storing in the DB.
.mdb, a file-extension used in certain versions of Microsoft Access databases; MDB, a kernel debugger for the Linux kernel. MDB, the NASDAQ ticker symbol for MongoDB, a database management system. Message Driven Bean, a special type of Enterprise JavaBean; Modular Debugger, a debugger available as part of the Solaris Operating System
Microsoft Access 2007 Database 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42 ␀␁␀␀Standard Jet DB: 0 mdb Microsoft Access Database 01 FF 02 04 03 02 ␁ÿ␂␄␃␂ 0 drw Micrografx vector graphic file 02 64 73 73 ␂dss: 0 dss Digital Speech Standard (Olympus, Grundig, & Phillips) v2 03 64 73 73 ␃dss: 0 dss
With version 2007 onward, Access includes an Office-specific version of Jet, initially called the Office Access Connectivity Engine (ACE), but which is now called the Access Database Engine (However MS-Access consultants and VBA developers who specialize in MS-Access are more likely to refer to it as "the ACE Database Engine").
A compiled version of an Access database (file extensions .MDE /ACCDE or .ADE; ACCDE only works with Access 2007 or later) can be created to prevent users from accessing the design surfaces to modify module code, forms, and reports. An MDE or ADE file is a Microsoft Access database file with all modules compiled and all editable source code ...