General information about operating systems

Operating systems are the foundation of every computer.
Operating systems enable the use of hardware and software.

The most well-known operating systems are Windows, macOS, Linux, and ChromeOS. We have created a comparison where the individual operating systems are briefly compared.

Os	Manufacturer	license	Target audience	Advantages	Disadvantages
Windows	Microsoft	Proprietary	General users, companies, gaming	Wide software support, user-friendly	Paid, security risks>
macOS	Apple	Proprietary	Apple users, creative professionals	Stable, Secure, Good Hardware-Software Integration	Only for Apple devices, more expensive
Linux	Community	Open-Source	Developers, servers, technology enthusiasts	Free, Customizable, Secure>	Limited software compatibility, learning curve
Chrome OS	Google	Proprietary	Cloud users, students	Fast, Easy, Lightweight	Limited offline use, dependent on Google services

What is meant by operating system?

The operating system is software that is needed to enable the use between hardware and applications.
In addition, resources are managed, including storage and processing power. It ensures that all programs run efficiently.

What is meant by software development?

Software development includes the planning, creation, testing, and maintenance of computer programs.

Programming languages Development processes Software architecture Tests and Debugging

Where Do We Encounter Operating Systems and Software Development in Everyday Life?

Both operating systems and software development are found in almost every area of our daily lives – often without us realizing it. Software exists in your fridge, your car, and even your watch.

**📱 Operating Systems – Where They Dominate**
Area	Typical OS	Examples
Office & Everyday Use	Windows, macOS	MS Office, Adobe software
Web Servers & Data Centers	Linux (Ubuntu, CentOS, Debian)	Websites, cloud services
Mobile Devices	Android, iOS	Smartphones, tablets
Embedded Systems	Customized Linux versions, RTOS	Smart TVs, cars, household appliances
Education & Research	Often Linux-based	Universities, labs

**💡 Software Development – Where It Is Everywhere**
Field	Typical Application	Technologies Used
Apps & Websites	User interfaces, online shops	HTML, JavaScript, React
Enterprise Software	ERP, CRM, internal tools	Java, Python
Game Development	Games for PC, console, mobile	Unity, Unreal
Automation	Industrial systems, robotics	Python, PLC programming
AI & Data Analysis	Predictions, machine learning	Python, R, TensorFlow
Scientific Software	Simulation, modeling	MATLAB, Python, Fortran

🧠 Operating Systems – More Than Background Music

First OS: Developed in the 1950s for mainframes without screens.
UNIX: Created in 1969 – the foundation for Linux, macOS, and Android.
Windows 3.0: Released in 1990 – Microsoft’s first successful graphical interface.
macOS: Based on UNIX, known for stability and Apple integration.
Android: The world’s most widely used mobile OS – also based on Linux.

💻 Software Development – Creative, Complex, Curious

First Computer Mouse: Built in 1964 from wood – revolutionary!
First Virus: “Brain” (1986) – created by two brothers in Pakistan.
JavaScript: One of the most popular programming languages for years.
Scrum: Widely used agile method in modern software development.
GitHub: Most important version control tool – used by over 40% of developers.
Remote Work: Over 75% of developers work partly or fully from home.

🧬 Unexpected Facts About Operating Systems

Windows 1.0: Windows could not overlap – everything was tiled.
Linux: Developed on an old 80386 PC – more improvisation than high-end tech.
macOS “say” Command: Terminal users can make it speak – just type say Hello World.
QNX: A full OS with GUI and browser – fit on a 1.44 MB floppy disk in 2004!
BeOS: Supported multi-CPU usage long before Windows – ahead of its time.

🧪 Curious Facts from Software Development

Ada Lovelace: Wrote the first program in 1843 – for a hypothetical machine.
First Bug: A real moth found in a computer relay (1947).
Whitespace: A language that only uses spaces, tabs, and newlines – nearly invisible to humans.
NASA Code: Still uses reliable code from the 1970s – “Don’t fix what isn’t broken.”
Developer Life: About 70% of the time is spent reading code – not writing it!