simulation

Need to implement a memory manager system with an Operating system satisfying the following;
a continious memory allocation scheme is used
the PCB(process control blocks) are to be executed based on round robin mechanism.
the main memory size is 16 mb
the job sizes vary from 10 kb-3 mb
the disc capacity is 500 mb.initially 50% filled up with jobs.
use first fit,best fit and worst fit techniques.(should be a variable)//user input
do compaction when fragmentation is more than 6% and holes are 50 kb or less
use a varying time slot(variable)
disc access time =1ms+(jobsize(in bytes)/500000)ms
job esecution range between 2ms and 10 ms