GNU/Fiwix 0.3.3

GNU/Fiwix is an operating system kernel based on the architecture of UNIX and Linux.
GNU/Fiwix operating system is designed exclusively for educational purposes, so the kernel code is kept as simple as possible for the benefit of students.
It runs on the 32-bit x86 hardware platform, and is compatible with existing GNU applications.
Main features:
- GRUB Multiboot Specification compliant.
- Fully 32bit protected mode non-preemptive kernel.
- For Intel 80386 processors or higher.
- Real multitask (kernel tasks at level 0).
- Protected task environment (independent memory address per process).
- Interrupt and exception handling.
- Semaphores.
- Signals.
- Virtual memory management up to 4GB.
- Demand paging with Copy-On-Write feature.
- Linux system calls compatibility.
- Linux ELF-386 executable format support (statically and dynamically linked).
- Round-Robin based scheduler algorithm (without priorities).
- VFS with Linux EXT2 filesystem support (read only).
- Keyboard driver with spanish/catalan and english keymaps (hard coded).
- Floppy disk device driver and DMA management.
- IDE/ATA hard disk device driver (read only).