Why are algorithms so important?

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Many beginners and software developers ask this question at an early stage of their career because they believe in things they see, which is not the case with algorithms. In reality, we know the result, such as iOS, Windows apps, Android apps and many other. But, behind that process algorithms stand. Another question that imposes is why do we make algorithms? To explain this question more comfortable, we will use a simple example. Let’s image you are building a house out of bricks. You have a general idea how the house should look like, how many rooms should have and how much materials you need. But, you aren’t an expert, and you could build something that looks like a house, but, can it stand winds, waves, weather conditions, and earthquakes? The same rule you can apply to programs when you write them without algorithms

Runtime analysis

post7bOne of the essential aspects of algorithms is their speed. It is easy to come up with an algorithm to resolve a problem, but, if it’s too slow, it’s back to drawing board. Considering that speed of an algorithm depends on where it is run, as well as the precise details of its use, developers usually talk about the runtime relative to the size of the input.

Google search algorithms

Google in the most popular search engine in the world, and it generates the millions of search inquiries every day. Some of them are complex, while other are simple. But, in order to manage all these queries, it has to use a variety of algorithms such as indexing algorithms, safe-search algorithms, site and page quality algorithms, Google instant and many more. They all have one thing in common, to show the results according to users’ requests.

Online money transactions

post7aOnline transactions have become the easiest way for individuals and companies to pay their bills and buy some accessories. But, many of us don’t know who our bank account and pin number are processed by banking gateway while performing a transaction. A lot of service providers use secure gateways for banks to complete any transactions safely. This helps companies like Master Card and Visa to keep their users’ information, such as card number, password, and bank statement safely. This entire process is managed through a series of algorithms that provide people reliable and save use. Without them, you won’t be able to make any online payment and still keep your safety.

Space search programs

The use of computer algorithms plays an essential role in space search programs. Scientists have to use massive calculations, and they are managed by high-end mainframe computers, which are enriched with sophisticated algorithms. Algorithms also decide which processor, Intel i7, i3, i5, is the best for any complex problem. We are in the age of algorithms because they solve our everyday tasks and we won’t be able to live with them. They make our life more comfortable and, in the future, they will be able to predict our behavior.

 

 

Melissa Kwan

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