What is an algorithm and flowchart

Algorithm and flowchart are two types of tools for explaining the process of a program. In this article, I will explain what an algorithm and a flowchart are, the differences between them, and how to create a flowchart to visually explain the algorithm. Algorithms and flowcharts are two different tools used to create new programs in computer programming. The algorithm is a step by step analysis of the process, while the flowchart explains the steps of the program in a graphical way.

Definition of an algorithm

Writing a logical step-by-step method for solving a problem is called an algorithm, in other words, an algorithm is a procedure for solving problems. To solve a mathematical or computer problem, this is the first step of the procedure. The algorithm includes calculations, reasoning and data processing. Algorithms can be represented by natural languages, pseudocode, flowcharts, etc.

Flowchart Definition

A flowchart is a graphical representation of an algorithm using various symbols, shapes, and arrows to show a process or program. With the help of algorithms, we can easily understand the program. The main purpose of a flowchart is to analyze various processes.

A process in a flowchart can be expressed through boxes and arrows of different sizes and colors. In a flowchart, we can easily highlight a specific element and the relationship between each part.

How to Use Flowcharts to Represent Algorithms

Now that we have the definitions of an algorithm and a flowchart, how do we use a flowchart to represent an algorithm? Algorithms are mainly used for mathematical and computer programs, while flowcharts can be used to describe all kinds of processes: business, educational, personal, and of course algorithms. Therefore, flowcharts are often used as a program planning tool to visually organize the step-by-step process of a program.

What types of software are

There are 3 main types of software:

  • systemic;
  • applied;
  • programming technology tools (tools)

According to the method of distribution and use, 6 types are distinguished:

  • Free – distributed free of charge, available for download, copy;
  • Adware – free, containing paid additional features;
  • Shareware – free for individual use, company access is allowed for a fee;
  • Trial scripts that allow you to perform actions for free within a specified period (10-30 days), for further access you need to purchase a license key;
  • Demo – trial version of the program;
  • Closed software is the private property of developers, access to which is possible only under certain conditions set by the author.

Software installation, installation is the process of installing software on the end user’s computer. It is executed by a special program (package manager) present in the operating system (for example, RPM, APT or dpkg on Linux, Windows Installer on Microsoft Windows), or by an installer included with the software itself.

Software licenses

Sold in two main forms:

OEM – these are programs that are sold with the hardware (they are tied to a specific computer), after replacing the hardware with a later version, you cannot transfer them to a new computer, you only need to purchase them again.

BOX are programs that can be transferred to other computers, provided that they are installed on only one computer. Legitimate, is only a recently installed program.

You may come across the following types of licenses:

Adware is a program distributed free of charge (without source code), but containing the function of displaying ads.

Freeware is software that can be used for free, but the copyright remains in place so no one can make changes to its source code.

Open Source (open source software) is an alternative to Freeware (free software), the purpose of which is the existence of free access to software for all its participants. Gives its users the right to legally and free of charge launch, copy, distribute, analyze, modify, improve and upgrade existing products.

Shareware is a program provided free of charge for testing purposes, so before making a purchase decision, you can test it for your individual needs.

Demos are free programs that have a very limited time of use.

Beta is a type of software that is trial and error-prone.

A trial is a type of license for computer programs, in that you can use it for a predetermined period of time. After the set time has elapsed, the only thing that the program will allow is to register or delete it from the hard disk.

Special type of license

Public domain (public good) – “license” applies to texts, music, visual arts, software, etc., which, as a result of the decision of the developer or the expiration of a suitable time, have become available for any use without restrictions arising from copyright law right. Programs with this status can be used free of charge and without restrictions.

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