System Call
Everything on SkillVeris tagged System Call — collected across the glossary, study notes, blog, and cheat sheets.
3 resources across 1 library
Interview Questions(3)
What is a System Call?
A system call is the controlled interface a user-space program uses to request a privileged service from the operating system kernel, such as reading a file, a…
What is an Interrupt?
An interrupt is a signal to the CPU, generated by hardware or software, that forces the processor to pause its current instruction stream and immediately trans…
Kernel Mode vs User Mode
Kernel mode is a privileged CPU execution state where the operating system can execute any instruction and access all hardware directly, while user mode is a r…