Fundamentals of Distributed Systems - Week 1

Parallel

• Multiple tasks are executed at the same time

• Parallel processes will have one thread per processor or device

Concurrent

• Computation using multiple threads

• Concurrent processes uses multiple threads per processor

Distributed computing

Distributed Systems - Fast Tech Skills

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https://www.youtube.com/watch?v=rYK-kTBUrK4

• (Physically disparate) Multiple CPUs located in physically different spaces

• All devices are connected via networks or some other kind of communication medium

• (Scalable) Since multiple devices can take on different parts of the work load

• (Fault tolerant) This means that if one node goes down it does not kill the system

• I guess you can think of it as parallel computing over a network 🙂

Design goals

Definitions

Distributed computing - “enables a number of autonomous software programs running on different hosts to communicated and perform tasks over a network”

Distributed system - “a collection of entities, each of which is autonomous, programmable and asynchronous and failure-prone, and which communicated through an unreliable communication medium”