Mario Pulido

Editor

Editor at opguardian. Part of the team that reviews, edits and publishes the magazine's content, with a focus on systems, networking and hardware.

History of computing

History of Computing: From the Abacus to the First Computer

A journey through the history of computing: from the Jacquard loom to generative AI, with the origins, the Turing machine, what the first computer in history…

By Mario Pulido 3 Jun 2026 · 17 min read

Más artículos

Productivity

SMART Goals: What They Are and How to Write Them

By Mario Pulido · 14 Nov 2024

AR & VR

Augmented Reality vs Virtual Reality: Differences, Uses and What Comes Next

By Mario Pulido · 30 Jan 2024

Internet & networks

What Is SSH? How It Works and What It Is For

By Mario Pulido · 19 Dec 2023

Identity & access

Principle of Least Privilege (PoLP): What It Is and How to Apply It

By Mario Pulido · 14 Dec 2023

Cloud

Cloud Computing Explained: What the Cloud Really Is and How It Works

By Mario Pulido · 28 Nov 2023

Internet & networks

What Is TCP/IP? The Four-Layer Model and How the Internet Works

By Mario Pulido · 7 Mar 2023