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  2. AWS Lambda - Wikipedia

    en.wikipedia.org/wiki/AWS_Lambda

    AWS Lambda layer is a ZIP archive containing libraries, frameworks or custom code that can be added to AWS Lambda functions. [9] As of December 2024, AWS Lambda layers have significant limitations: [10] [11] No semantic versioning support. Incompatibility with major security scanning tools. Contribution to Lambda's 250MB size limit. Impeded ...

  3. History of the Actor model - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Actor_model

    The substitution model is unsuitable for concurrency because it does not allow the capability of sharing of changing resources. Inspired by the lambda calculus, the interpreter for the programming language Lisp made use of a data structure called an environment so that the values of parameters did not have to be substituted into the body of an ...

  4. Lambda architecture - Wikipedia

    en.wikipedia.org/wiki/Lambda_architecture

    The two view outputs may be joined before presentation. The rise of lambda architecture is correlated with the growth of big data, real-time analytics, and the drive to mitigate the latencies of map-reduce. [1] Lambda architecture depends on a data model with an append-only, immutable data source that serves as a system of record.

  5. Actor model and process calculi history - Wikipedia

    en.wikipedia.org/wiki/Actor_model_and_process...

    The Actor model, first published in 1973, [1] is a mathematical model of concurrent computation.The Actor model treats "Actors" as the universal primitives of concurrent digital computation: in response to a message that it receives, an Actor can make local decisions, create more Actors, send more messages, and determine how to respond to the next message received.

  6. Communicating sequential processes - Wikipedia

    en.wikipedia.org/wiki/Communicating_sequential...

    In computer science, communicating sequential processes (CSP) is a formal language for describing patterns of interaction in concurrent systems. [1] It is a member of the family of mathematical theories of concurrency known as process algebras, or process calculi, based on message passing via channels.

  7. Process calculus - Wikipedia

    en.wikipedia.org/wiki/Process_calculus

    The subsequent consolidation of computer science required a more subtle formulation of the notion of computation, in particular explicit representations of concurrency and communication. Models of concurrency such as the process calculi, Petri nets in 1962, and the actor model in 1973 emerged from this line of inquiry.

  8. Concurrent testing - Wikipedia

    en.wikipedia.org/wiki/Concurrent_testing

    Research [1] and literature [2] on concurrency testing and concurrent testing typically focuses on testing software and systems that use concurrent computing.The purpose is, as with most software testing, to understand the behaviour and performance of a software system that uses concurrent computing, particularly assessing the stability of a system or application during normal activity.

  9. VAX 9000 - Wikipedia

    en.wikipedia.org/wiki/VAX_9000

    The VAX 9000 Model 110 was an entry-level model with the same performance as the Model 210 but had a smaller memory capacity and was bundled with less software and services. On 22 February 1991, it was priced from US$920,000, and if fitted with a vector processor, from US$997,000.