Computers and IT

84 Articles in this topic
Technology

Post-Quantum Cryptography: Japan's TOPPAN, NICT & ISARA Demonstrate Seamless PKI Migration Without Service Disruption

TOPPAN Holdings, Japan's NICT, and Canada's ISARA have demonstrated a seamless migration path from current cryptography to post-quantum cryptography in certificate authority systems, without service disruption. The breakthrough addresses the looming quantum computing threat to existing encryption, targeting real-world deployment in healthcare, finance, and government by 2030.

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Technology

Docomo Starlink Direct: Japan's Largest Carrier Launches Free Satellite-to-Phone Service, Eliminating Dead Zones Nationwide

NTT Docomo launches 'docomo Starlink Direct' on April 27, 2026, offering free satellite-to-smartphone communication for 22 million subscribers. Using SpaceX's Starlink constellation of 650+ satellites as cell towers in space, the service covers mountains, remote islands, and seas across Japan. We compare it with KDDI's pioneering au service and T-Mobile's U.S. rollout.

Technology

Floating Data Centers: Japan's MOL and Hitachi to Convert Used Ships Into Sea-Based Server Farms for the AI Era

Japan's shipping giant MOL and tech conglomerate Hitachi have agreed to jointly develop floating data centers by converting used ships. Using seawater cooling to slash power costs, needing no land, and deployable in just one year, these maritime server farms offer a creative answer to the AI era's insatiable appetite for computing power.

Technology

Quantum Control Breakthrough: Japan's QuEL Proves 24-Hour Stability — A Key Step Toward Large-Scale Quantum Computers

Osaka University startup QuEL has demonstrated 24-hour stable operation of its quantum bit control device QuEL-1 SE, achieving amplitude standard deviation of 0.15% and phase standard deviation of 0.39°. Published in Review of Scientific Instruments, this breakthrough in device-level temperature control clears fault-tolerant thresholds crucial for scaling quantum computers toward the million-qubit era.

Business & Economy

Submarine Cable Capacity Quadrupled: NTT's Multi-Core Fiber Could Reshape Global Internet Infrastructure

NTT has developed multi-core optical fiber technology that quadruples submarine cable capacity without changing cable structure. Achieving 192 cores (48 fibers × 4 cores) with deployment targeted for 2029, this Japanese innovation addresses the explosive data demands of the AI era. We explore the technology alongside Big Tech's submarine cable investment race.