Microkernel Architecture with Enhanced Reliability and Security

In one embodiment, a microkernel of an operating system executing on a computing system receives, from an application, a first system call requesting to communicate with a service registry. The first system call being associated with an operation request. The microkernel sends a first instruction to the service registry. The microkernel receives, from the service registry, a second system call requesting to communicate with at least one of an application service or a protocol service. The second system call being associated with the operation request. The microkernel sends a second instruction to at least one of the application service or the protocol service. The microkernel receives, from at least one of the application service or the protocol service, a third system call requesting to communicate with a driver service. The third system call being associated with the operation request. The microkernel sends a third instruction to the driver service.