In Pictures: Pocket marvels - 40 years of handheld computers

From the first pocket scientific calculator through '80s organisers to today's tablets, check out 15 ingenious devices that have driven the handheld computing revolution.

In 1972, engineers at Hewlett-Packard rose to a challenge from founder William Hewlett to fit all the scientific functions of the company's flagship desktop calculator into something he could slip into his shirt pocket. They came up with the HP-35, a scientific calculator no bigger than a box of Milk Duds -- and arguably the world's first handheld computer.

Join us for a tour of 15 of the most notable handheld computers from the past 40 years. Some were wildly successful, others infamous flops, but they were all commercially available products, not concepts or prototypes. And they could all be held in one hand and operated with the other -- no laptops, netbooks or laptop/tablet hybrids allowed in our list.

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GGG Evaluation Team

Kathy Cassidy


First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni


For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell


The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi


The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott


My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

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