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About these units
Exabit (Eb)
An exabit is 10¹⁸ bits, used in ultra-large-scale networking, such as intercontinental fiber systems, data-center connectivity, and internet backbone capacity projections. Although no single consumer device operates at this scale, network engineers and futurists use exabit terminology to describe the explosive growth of global internet traffic. The exabit embodies the shift toward planetary-scale communication infrastructures, reflecting humanity's increasing dependence on rapid, high-bandwidth connectivity.
Petabyte (PB)
A petabyte is 1 quadrillion bytes in decimal (10¹⁵) or 1,125,899,906,842,624 bytes in binary (2⁵⁰). At this size, storage enters the realm of massive data infrastructures: internet archive collections, large-scale scientific simulations, genomic sequencing databases, machine learning datasets containing billions of records, multinational cloud storage networks. A single PB can store thousands of HD films, millions of e-books, or extensive enterprise backups. Petabytes mark the transition from everyday computing into large-scale data engineering, distributed systems, and global information ecosystems.