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Lecture 11

Lecture 11 Notes.docx

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Natural Science
NATS 1700
Zbigniew Stachniak

Lecture 11 Notes - The majority of computer and communication devices operate by following instructions listed in the so-called program and stored in the device’s memory. - Without programs, computers and other computing and information devices would be as useless - Computer hardware: computers, their components and peripherals. - Computer software: computer programs and associated data that determine a computer’s operating environment and provide users with applications by commanding the hardware to perform specific tasks. o Execution in the form of a sequence of instructions written in a specific so-called programming language o 2 types: system software and application software. - System software: any computer software, which manages and controls computer hardware so that application software can perform a task. Example: Windows, Android, iOS (Apple), Linux - Application Software: is any program, which is not system software. This is a large class, which includes all the ”apps”. For example: Microsoft Word, iTunes, Computer Game, Phone games (apps) - Main challenge faced by the designers of these complicated machines was how to provide an automaton with instructions that it would follow th th - In old times (18 & 19 century), people would play music to birds in order to teach them new songs. This formed Bird Organs – mechanical devices capable of reproducing birds’ songs. - Bird organ, a popular novelty of the 18th and 19th centuries, was a mechanical bird, which made every movement a real bird does. - Punch cards and paper tapes were used to store data – at that time provided the most convenient way of
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