Algorithms

An algorithm in computer science is:

• Finite sequence of well defined (clear) instructions
• Used to solve a problem or perform a computation
• In data processing

What makes a good algorithm

• Finite
• Well-defined inputs
• Well-defined outputs
• Feasible
• Language independent
• Instructions are unambiguous

Advantages of Algorithms

• Algorithm not biased
• Faster + cheaper

Disadvantages of Algorithms

• Algorithms can be badly designed
• Removes the human component

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What is an algorithm?

“A step-by-step procedure for solving a problem or accomplishing some end especially by a computer” - Merriam-Webster

Because of their speed and reliability computers are an ideal tool for running algorithms

Algorithms are:

• a sequence of instructions
• a way of capturing intelligence
• general solutions to problems
• expressed in a variety of different ways
• characterised by input, processing and output