Information Technology Center, The University of Tokyo conducts nation / campus-wide information service related research and education. ITC is also a core institution of the “Joint Usage/Research Center for Interdisciplinary Large-Scale Information Infrastructures (JHPCN)” project and the innovative HPC Infrastructure (HPCI) operated by MEXT. In addition, we established Joint Center for Advanced HPC (JCAHPC) in collaboration with CCS, U. Tsukuba. for designing, and operating large-scale supercomputer. In our booth, we present our current research activities and show the detail of our latest supercomputer systems, including "Oakforest-PACS" operated by JCAHPC, "Oakleaf-FX," and "Reedbush."