The old new thing: Cisco and retro tech are back and forming the AI buildout’s backbone
‘Everybody forgot about them for 20 years. And now suddenly they’re important again.’
Cisco and Retro Tech Revived
Millions of miles of glass fibers, thinner than a single human hair, stretch beneath the earth and far below the ocean’s surface. Light pulses travel through these strands at speeds exceeding 100,000 miles per second, moving the world’s data at a pace that underpins modern communications.
Fiber‑optic Network
When the internet first emerged, a handful of firms seized the opportunity to design and sell the hardware and business models that bundled those glass strands into functional cables. Those early pioneers built the foundation of today’s fiber‑optic network, a system that continues to carry the bulk of global digital traffic.
Cisco, a longtime leader in networking equipment, is now drawing on that original expertise. The company’s legacy gear, originally created to support the first wave of broadband, is being repurposed to serve the exploding demand for artificial‑intelligence workloads. By leveraging its deep knowledge of fiber‑optic infrastructure, Cisco positions itself as a critical supplier for the AI buildout that many analysts describe as the next major wave of technology investment.
Retro Tech Revival
The term “retro tech” has entered industry conversations as older, proven technologies experience renewed interest. Cisco’s equipment, once considered cutting‑edge in the 1990s, is reappearing in data‑center designs that require ultra‑reliable, high‑capacity connections. This resurgence reflects a broader market trend where companies favor proven hardware to reduce risk while scaling AI services.
The AI boom intensifies the need for bandwidth that can handle massive data sets in real time. Fiber‑optic cables, with their ability to transmit light‑based signals at extraordinary speeds, provide the backbone for such requirements. As AI models grow larger and inference workloads multiply, the pressure on existing networks increases, prompting operators to upgrade to the most efficient fiber solutions available.
Data Speed
The physical properties of glass fibers enable data to move at more than 100,000 miles per second, a figure that translates into near‑instantaneous communication across continents. This speed advantage is essential for latency‑sensitive AI applications, such as real‑time language translation, autonomous vehicle coordination, and high‑frequency trading algorithms. By reinforcing the fiber‑optic layer, Cisco and similar firms help ensure that the digital arteries of the internet can keep pace with AI’s rapid expansion.
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Source: marketwatch.com · 2026-09-19