There are several related goals for this assignment:

$$ Implement the Spawn$(),$ Waitpid$(),$ and Exit$()$ system calls. These calls will allow user

processes to create new user processes. Spawn$()$ will involve loading a user program

from a file and then running it$.$

$$ Do some basic keyboard I$/$O$,$ implementing Putchar$()$ and Getchar$()$ for user programs.

$$ Write a simple shell for Minix with support for Spawn$()$ and Waitpid$().$

$$ Defined a shared memory, i$.$e$.$ mailbox, from the parent to the children. The memory

must be shared among all children as you need to implement readers$-$writers

synchronization paradigm

Use C to complete all requirement