Understanding Operating Systems: From Kernels to User Space

Understanding Operating Systems: From Kernels to User Space An operating system (OS) is the software that lets apps run on your computer. It coordinates CPU time, memory, and devices so software can work together safely. The OS sits between programs and hardware, making complex tasks easier to manage. The kernel is the core part that talks directly to the hardware. Above it sits user space, where most programs run. Apps ask the kernel to do things through system calls, simple requests that the OS handles securely. ...

September 21, 2025 · 2 min · 367 words