Computers Filled Entire Rooms — Then They Fit in Your Pocket | Computer Evolution

DESCRIPTION Computers once occupied rooms filled with relays, vacuum tubes, cables and cabinets. Over the next eight decades, those machines shrank through transistors, integrated circuits and microprocessors into desktops, laptops, handheld computers, tablets and pocket-sized smartphones. This visual timeline follows 44 major milestones from the 1941 Z3, Harvard Mark I and ENIAC through stored-program computing, IBM mainframes, the PDP-8, Apollo Guidance Computer, Intel microprocessors, Altair 8800, Apple II, IBM PC, Macintosh, portable PCs, ThinkPads, PalmPilot, iMac, MacBook Air, Raspberry Pi, Surface Pro, Steam Deck and the 2026 iPhone 18 Pro. The chronology is condensed to visually distinct physical and technical turning points. Every stage is historical or present-day; no speculative future computer is presented as fact. #ComputerEvolution #HistoryOfComputers #TechnologyHistory #EvoChronicle KEYWORDS computer evolution, history of computers, computer history, evolution of computers, room sized computer, ENIAC, Z3 computer, Harvard Mark I, stored program computer, IBM mainframe, PDP-8, microprocessor history, Intel 4004, Altair 8800, Apple II, IBM PC, Macintosh, laptop evolution, portable computer, handheld computer, PalmPilot, iPhone evolution, Raspberry Pi, Surface Pro, Steam Deck, technology evolution, tech timeline CATEGORY Science & Technology CHANNEL EvoChronicle VIDEO ID VID003