Apple's iPad went on sale April 3, 2010, selling roughly 300,000 units on its first day and a million within a month — faster than the iPhone's launch pace — as a slate device Steve Jobs introduced by asking what a tablet could do “so much better” than a phone or laptop that it would justify a new category, before demonstrating browsing, email, and photos on a couch rather than a desk.
The device deliberately hid its own file system from users, ran apps in full-screen isolation, and offered no multitasking at launch — constraints critics called limitations and Apple called focus, betting that most computing for most people, most of the time, was consumption and light creation rather than the file management and multi-window juggling laptops assumed.
The mechanism was situational computing: a device light enough for a couch, durable enough for a retail counter, and simple enough for a hospital rounds cart, addressing contexts where a laptop felt heavy and a phone felt cramped, which is why the fastest institutional adoption came not from home users but from airlines replacing paper flight manuals, hospitals replacing clipboards, and schools running one-to-one tablet pilots.
Publishers rushed to build elaborate, skeuomorphic magazine apps — page-turn animations, embedded video — that mostly failed commercially within a few years as readers preferred simpler formats; Apple and app developers who built genuinely tablet-native software, rather than scaled-up phone apps, gained the category's lasting revenue. Traditional PC makers lost unit-growth momentum as global PC shipments plateaued and then declined for most of the following decade.
Competitors read the category differently and mostly lost: Amazon's Kindle Fire and Google's Android tablet partners priced aggressively below Apple, betting buyers wanted a cheaper content-consumption device rather than a premium computer substitute, and while both sold in volume, Apple retained the large majority of tablet-industry profit for years, much as it had already done in smartphones. Global tablet shipments would eventually pass 170 million units annually before plateauing later in the decade as replacement cycles lengthened, with Apple alone shipping more than 650 million iPads cumulatively by the early 2020s, a scale that let the iPad outsell the entire personal-computer output of most individual manufacturers combined during the category's peak years.
Early coverage treated the absence of a keyboard and file system as a near-fatal flaw, comparing the iPad unfavorably to “real” computers. Slower to develop was recognition that Apple was not competing on power but on posture and duration — a different axis of computing that PC-era reviewers were not equipped to evaluate on first contact.
Hybrid and remote work now routinely mixes laptops for producing tasks with tablets for reading, meetings, and note-taking, often with a stylus — Apple Pencil, launched in 2015, made that explicit — while children's device time is now debated by category, tablet versus phone versus laptop, in a way that assumes the iPad's premise that these are different tools, not smaller and larger versions of the same one.
Enterprise and education buyers adopted iPads as kiosk and curriculum devices, proving touch computers could be institutions' default screens without replacing every laptop. The 'post-PC' slogan overreached; the wedge into non-desk contexts was real.
Apple positioned the iPad between phone and laptop — a consumption-first slab that publishers tried to save magazines with and that enterprise IT slowly admitted into workflows. The App Store's touch-first design language migrated assumptions about what 'a computer' needed: keyboard optional, always online preferred.
Education 1:1 tablet programs and airline cockpit experiments showed institutional uptake; creative pros still demanded MacBooks. The durable win was expanding the addressable surface for software. Post-PC did not kill the PC; it ended the PC's monopoly on serious computing moments.
Software design languages shifted toward touch-first clarity that later migrated back to desktops. Media companies bet on tablet editions that mostly failed as businesses but succeeded as a wake-up about mobile attention. The slab did not replace the laptop; it ended the laptop’s cultural monopoly.
The “post-PC” framing Jobs used at launch proved partly wrong — laptops did not disappear — and partly right: computing did split by context rather than converge, and enterprise and education procurement now budgets for tablets as a distinct line item rather than a laptop substitute, the clearest sign the category argument, if not the death-of-the-PC prediction, won.
Century Signals note: Apple iPad launch materials (2010); publishing and education deployment coverage; PC shipment trend reporting of the era. Editorial judgment about what still structures the present — not a comprehensive history.