An algorithm, in its simplest form, is a series of steps that specify an order of operations. It might alternatively be explained as a series of instructions intended to accomplish a certain task or resolve a particular issue. However, they may also be relevant in other situations, such as biological brain networks and electrical devices. Algorithms are mostly utilized and researched in the fields of mathematics and computer sciences. An algorithm in computer science is a set of clear instructions that directs computer systems to carry out a variety of activities. They can be made to do out basic tasks, like subtracting two integers, or more difficult ones, such determining the best path between two or more points on a map. As a result, using computer algorithms to do calculations, process data, and even make decisions is quite helpful. Each algorithm has a distinct beginning and conclusion and generates results based on the inputs and predetermined steps. The performance of more complex tasks can be increased by combining many methods, however this also increases the computer resource requirements. Algorithms can be evaluated based on their accuracy and effectiveness. The algorithm's accuracy and its ability to tackle a particular problem are both considered in terms of correctness. Efficiency is connected to how many resources and how long it takes an algorithm to complete a task. Regardless of the programming language or hardware they are using, asymptotics is a mathematical analysis method that many computer scientists use to compare various algorithms. The Bitcoin Proof of Work algorithm is a crucial part of the mining process in the context of blockchain, which verifies and validates transactions while protecting the network and ensuring it is operating as intended.