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Generations of Computers

BEGINNERS & SENIORS GUIDE TO COMPUTERS The Generations of Computers The timeline of the history of computers can be studied with reference to five generations. The computer evolution could be noticed by looking into the characteristics of computers and how they evolved over time with technology. First Generation - 1940-1956. Vacuum tube-based. Second Generation - 1956-1963. Transistor-based. Third Generation - 1964-1971. Integrated Circuit based. Fourth Generation - 1972-1980. VLSI microprocessor-based. Fifth Generation - 1980-onwards. ULSI microprocessor-based. The computer was not invented in a day or two but evolved at different times with the contributions of different enthusiasts. The Characteristics of computers Though computers are machines, there are certain characteristics that differentiate them from other machines. Limitations of Computers Anyway, apart from these powerful characteristics, computers being an electronic machine, still shows some considerable limitations. Number one no heuristics, means, computers do not possess the ability to learn from previous mistakes. This is a main drawback of computers besides their powerful capabilities. Please subscribe! Learn the basics of computers in this video presentation. Hardware and software are demonstrated. Easy to understand. My companion website, Seniors Guide to Computers https://www.seniorsguidetocomputers.com, covers the following topics necessary to turn your computer from a $1,000 paperweight to a valuable tool for productivity, communication, business, entertainment and much more. VISIT MY BOOKSTORE FOR A GREAT SELECTION OF COMPUTER TUTORIALS: https://www.seniorsguidetocomputers.c... RECOMMENDED READING: Beginners guide to Computer Hardware https://amzn.to/3VACivk Windows 10 Made Easy https://amzn.to/3ym9Tiu THE BASICS - an overview of the main parts of a personal computer (PC) as it relates to your own physical office. ACCESSIBILITY How to set up a computer for individuals with vision and other disabilities. Display settlngs Keyboard functions Magnifier Mouse settings Narrator Keyboard Voice Recognition Software BACKING UP YOUR DATA - Probably the single most important task you'll perform. Benefits of offline storage External hard drives Backing up to CDs and DVDs Making an image of an entire drive Reviews of different backup software EMAIL Email programs Email attachments How to handle spam Phishing schemes Safe email practices Web-based email HARDWARE Displays Solid State and Physical Hard Drives Keyboards Memory Mice INTERNET Web Browsers: Google Chrome Mozilla Firefox Vivaldi Connection types: Cable modem Dial-up Digital Subscriber Line (DSL) Fiber Optic Cable Safe surfing Search engines Settings SECURITY Anti-spyware software Anti-virus software Hardware Firewalls Online banking Online shopping Software Firewalls Windows Update Windows user accounts SOFTWARE Financial Free online alternatives Free word processors Office Suites Photo Viewing & Editing