Please capitalize where necessary: plc/ipc systems and terminals
A: PLC/IPC systems and terminals

Please capitalize where necessary: education, youth, culture and sport (eysc)
A: Education, Youth, Culture and Sport (EYSC)

Please capitalize where necessary: we were the first generation after the war.
A: We were the first generation after the war.

Please capitalize where necessary: gates is the world's largest manufacturer belts of and is a leader in hi-tech rubber belts.
A:
Gates is the world's largest manufacturer belts of and is a leader in hi-tech rubber belts.