Here is a nice timeline of awesome inventions!
1900-1930
• Escalator
• Radio Receiver
• Polygraph
• Gas motored and manned airplane
• First Sonar Device
• Color Photography
• First Talking Motion Picture
• First Automobile Electrical Ignition System
• Motorized Movie Cameras
• Superheterodyne Radio Circuit
• Short-wave Radio
• Flip-Flop Circuit
• First robot built
• First 3D movie
• Television or iconoscope
• Loudspeaker
• Mechanical Television
• Electronic TV System
• Car Radio
• Analog Computer
• Jet Engine
1931-1960
• Stop Action Photography
• Electron Microscope
• Polaroid Photography
• Radio Telescope
• FM Radio
• First Magnetic Recording
• Voice Recognition Machine
• Photocopier
• First Computer Controlled by Software
• Electronic Digital Computer
• Mobile phones first invented
• Credit Card
• Video Tape Recorder
• First Patent for Bar Code Issued
• Solar Cell
• First Computer Hard Disk Used
• Fortran Computer Language
• Modem
• Microchip
1961-1990
• Audio Cassette
• Spacewar the First Computer Game
• BASIC an Early Computer Language
• Compact Disk
• Electronic Fuel Injection for Cars
• Calculator
• Computer Mouse
• Computer with Integrated Circuits
• RAM
• Apranet
• ATM
• Bar Code Scanner
• Floppy Disk
• LCD
• Microprocessor
• VCR
• Word Processor
• Pong Video Game
• Ethernet
• Laser Printer
• Ink Jet Printer
• Cell Phones
• Walkman
• MS-DOS
• IBM-PC
• Scanning Tunneling Microscope
• CD ROM
• Apple Macintosh
• Windows
• 3D Video Game
• Digital Cellular Phones
• Doppler Radar
• HD Television
1990-2011
• World Wide Web; Internet Protocol and HTML
• Digital Answering Machine
• Pentium Processor
• Java
• DVD
• Web TV
• Gas Powered Fuel Cell
• iPod
• Foveon Camera Chip
• Solar Tower
• Virtual Keyboard
• Hybrid Car
• Intel Express Chipsets
• YouTube
• iPad
• Battery Operated Car