It is store in almost all electronic devices that carry out certain functions or commands at the push of a button.
The software programs of all these devices are stored on a small hardware chip and can call up at any time.
Suppose the operator presses a particular button (for example, the washing program Delicates at 30 ° C on a washing machine).
In that case, the chip calls up the Software and processes the programmed parts through to the end.
If we look at the home computer or laptop, such devices are full of it. We are starting with an operating system like Windows 10 to security programs like Kaspersky Internet Security.
How exactly does it work?
It uses digital information to enable functions of the hardware to control.
Machines, devices, and other hardware can only understand and process this digital information in their language, and this language is also called machine code (machine language).
Machine codes base on a binary code (binary = two or in pairs). A binary code is a system based on two instructions.
These instructions represent or processed in zeros and, true and false, in the electronic impulses.
Anyone who thinks, “That’s highly mathematical.” is only partially correct.
It must program to pass this digital information or machine codes on to the hardware, machines, or other programs in an understandable way to work and process their tasks.
Since machine codes (ones and zeros) are confusing and difficult to understand for humans, programming languages have developed.
Programming languages a made up of instructions that are understandable for humans and in text form.
Instructions save in a text file that, depending on the programming language, has its file extension (e.g., .c, .cc, .pl). These text files called source text or source code.
These source codes then translate by a program (compiler or interpreter) into an executable file, which then contains this machine code, which we then call programs.
A program file or an executable file usually has a file extension that shows which system, hardware, or interpreter it program for (examples: .exe for Windows, .dmg for Mac OS X, .deb for Debian-based systems and .jar for Java, and many more).
Types of Software
Different types of it differ in terms of function, licenses, and source code availability.
A washing machine or coffee machine’s functions operates mainly by it is called firmware or embedded systems.
Computers encompass a wide range of Software.
There is firmware with the BIOS, system software such as our operating system, and countless application software depending on the digital work and operating system.
With the Internet, there is also server software or online Software.
The right to use it determines by licenses such as freeware, shareware, proprietary Software, or free Software.
In the case of proprietary Software such as Windows and iOS, the user controls are usually minimal.
Above all, the source code is not freely available, which can also be the case with freeware and shareware.
Open-source Software whose source code is visible (open source), but licenses and usage conditions can restrict open-source Software.
Free Software is open source and focuses on the freedom of computer users.
And also, it defines by the fact that it gives you unrestricted rights to use it.
For example, it licenses are the Apache license version 2.0, the MIT license, and the GNU General Public License (GPL).