These are the servers to dedicate for important softwares:

Mail Server
  
Web Server

DNS Server

DHCP Server

Windows Update Server

Application Server

                 • Libsys Server
                 • Matlab
                 • SPSS(Statistical Package for the Social Sciences)
                 • PDC Server
                 • ADC Server
                 • Prowess(CMIE)

File Server(FTP)

Proxy Server

Backup Server

Network Monitoring Server