In this episode, we cover the following topics:

• In this new series, we are discussing database consistency models explained in three acts. This episode is "Act I: Transaction processing (circa 1973)".
• We start with the motivation behind talking about database soup - why are ACID, CAP, and BASE important to understand?
• We define transaction processing and its origins. What exactly is a "transaction"?
• Transactions are governed by ACID semantics. We define and explain the four characteristics of the ACID acronym::
• Atomicity
• Consistency
• Isolation
• Durability
• The computer scientist, Jim Gray, came up with the idea of ACID semantics in the late 1970's. We discuss some of the history behind this, along with a bizarre and tragic ending to his story.
• We also share a personal story about another important player in transaction processing, Phil Bernstein.

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End SongTalcum by Lost Lake

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