Principles of computer programming

2021-12-22

• computer programs run in computers
• programs read input from mouse, keyboard, pen tablet touchscreen, midi controller etc.
• programs read and write disk with or without a file system
• computers have a CPU that can execute code written in specific instruction set
• CPU can have multiple cores for parallel execution
• computers may have a GPU
• new program code may be loaded into a running program without resetting the program state
• static type analysis may be applied to the program code or parto of it to find errors and to assist writing the code
• test environment that uses read only production integrations if possible
• deployment that quarantees that everything that affects code that runs in test or production environment corresponds to a specific version in a version control system.

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