History of Personal Computers(1970 - 2020)

  • First Kenbak-1 is sold

    First Kenbak-1 is sold
    One of the earliest personal computers, the Kenbak-1 is advertised for $750 in Scientific American magazine. Designed by John V. Blankenbaker using standard medium-- and small-scale integrated circuits, the Kenbak-1 relied on switches for input and lights for output from its 256-byte memory. In 1973, after selling only 40 machines, Kenbak Corporation closed its doors.
  • Micral is released

    Micral is released
    Based on the Intel 8008 microprocessor, the Micral is one of the earliest commercial, non-kit personal computers. Designer Thi Truong developed the computer while Philippe Kahn wrote the software. Truong, founder and president of the French company R2E, created the Micral as a replacement for minicomputers in situations that did not require high performance, such as process control and highway toll collection. Selling for $1,750, the Micral never penetrated the U.S. market.
  • IBM SCAMP is developed

    IBM SCAMP is developed
    Under the direction of engineer Dr. Paul Friedl, the Special Computer APL Machine Portable (SCAMP) personal computer prototype is developed at IBM's Los Gatos and Palo Alto, California laboratories. IBM’s first personal computer, the system was designed to run the APL programming language in a compact, briefcase-like enclosure which comprised a keyboard, CRT display, and cassette tape storage.From concept to finished system, SCAMP took only six months to develop.
  • MITS Altair 8800 kit appears in Popular Electronics

    MITS Altair 8800 kit appears in Popular Electronics
    For its January issue, hobbyist magazine Popular Electronics runs a cover story of a new computer kit, the Altair 8800. Within weeks of its appearance, customers inundated its maker, MITS, with orders. Bill Gates and Paul Allen licensed their BASIC programming language interpreter to MITS as the main language for the Altair. MITS co-founder Ed Roberts invented the Altair 8800.
  • The Video Display Module (VDM-1)

    The Video Display Module (VDM-1)
    Designed by computer pioneer Lee Felsenstein, the Video Display Module (VDM-1) marks the earliest implementation of a memory-mapped alphanumeric video display for personal computers. Introduced at the Altair Convention in Albuquerque in March 1976, it was a much-needed input device for hobbyists building their own microcomputer systems at the time and became the basis of the SOL-20 computer.
  • Apple II introduced

    Apple II introduced
    Sold complete with a main logic board, switching power supply, keyboard, case, manual, game paddles, and cassette tape containing the game Breakout, the Apple-II finds popularity far beyond the hobbyist community which made up Apple’s user community until then. When connected to a color television set, the Apple II produced brilliant color graphics for the time. Millions of Apple IIs were sold between 1977 and 1993, making it one of the longest-lived lines of personal computers.
  • The Commodore PET (Personal Electronic Transactor) introduced

    The Commodore PET (Personal Electronic Transactor) introduced
    The first of several personal computers released in 1977, the PET comes fully assembled with either 4 or 8 KB of memory, a built-in cassette tape drive, and a membrane keyboard. The PET was popular with schools and for use as a home computer. It used a MOS Technologies 6502 microprocessor running at 1 MHz. After the success of the PET, Commodore remained a major player in the personal computer market into the 1990s.
  • Commodore introduces the VIC-20

    Commodore introduces the VIC-20
    Commodore releases the VIC-20 home computer as the successor to the Commodore PET personal computer. Intended to be a less expensive alternative to the PET, the VIC-20 was highly successful, becoming the first computer to sell more than a million units. Commodore even used Star Trek television star William Shatner in advertisements.
  • IBM introduces its Personal Computer (PC)

    IBM introduces its Personal Computer (PC)
    IBM's brand recognition, along with a massive marketing campaign, ignites the fast growth of the personal computer market with the announcement of its own personal computer. The first IBM PC, formally known as the IBM Model 5150, was based on a 4.77 MHz Intel 8088 microprocessor and used Microsoft´s MS-DOS operating system. The IBM PC revolutionized business computing by becoming the first PC to gain widespread adoption by industry.
  • Apple introduces the Lisa computer

    Apple introduces the Lisa computer
    Lisa is the first commercial personal computer with a graphical user interface. It was thus an important milestone in computing as soon Microsoft Windows and the Apple Macintosh would soon adopt the GUI as their user interface, making it the new paradigm for personal computing. The Lisa ran on a Motorola 68000 microprocessor and came equipped with 1 MB of RAM, a 12-inch black-and-white monitor, dual 5.25-inch floppy disk drives and a 5 MB “Profile” hard drive.
  • PowerBook series of laptops is introduced

    PowerBook series of laptops is introduced
    Apple's Macintosh Portable meets with little success in the marketplace and leads to a complete redesign of Apple's line of portable computers. All three PowerBooks introduced featured a built-in trackball, internal floppy drive, and palm rests, which would eventually become typical of 1990s laptop design. The PowerBook 100 was the entry-level machine, while the PowerBook 140 was more powerful and had a larger memory.
  • RISC PC is released

    RISC PC is released
    Replacing their Archimedes computer, the RISC PC from UK's Acorn Computers uses the ARMv3 RISC microprocessor. Though it used a proprietary operating system, RISC OS, the RISC PC could run PC-compatible software using the Acorn PC Card. The RISC PC was used widely in UK broadcast television and in music production.
  • IBM releases the ThinkPad 701C

    IBM releases the ThinkPad 701C
    Officially known as the Track Write, the automatically expanding full-sized keyboard used by the ThinkPad 701 is designed by inventor John Karidis. The keyboard was comprised of three roughly triangular interlocking pieces, which formed a full-sized keyboard when the laptop was opened -- resulting in a keyboard significantly wider than the case. This keyboard design was dubbed “the Butterfly.” The need for such a design was lessened as laptop screens grew wider.
  • Sony Vaio series is begun

    Sony Vaio series is begun
    Sony had manufactured and sold computers in Japan, but the VAIO signals their entry into the global computer market. The VAIO line of computers would be best known for laptops were designed with communications and audio-video capabilities at the forefront, including innovative designs that incorporated TV and radio tuners, web cameras, and handwriting recognition.
  • PowerMac G5 is released

    PowerMac G5 is released
    With a distinctive anodized aluminum case, and hailed as the first true 64-bit personal computer, the Apple G5 is the most powerful Macintosh ever released to that point. While larger than the previous G4 towers, the G5 had comparatively limited space for expansion. Virginia Tech used more than a thousand PowerMac G5s to create the System X cluster supercomputer, rated #3 in November of that year on the world’s TOP500 fastest computers.
  • Lenovo acquires IBM's PC business

    Lenovo acquires IBM's PC business
    Nearly a quarter century after IBM launched their PC in 1981, they had become merely another player in a crowded marketplace. Lenovo, China's largest manufacturer of PCs, purchased IBM's personal computer business in 2005, largely to gain access to IBM's ThinkPad line of computers and sales force. Lenovo became the largest manufacturer of PCs in the world with the acquisition, later also acquiring IBM's server line of computers.
  • One Laptop Per Child initiative begins

    One Laptop Per Child initiative begins
    At the 2006 World Economic Forum in Davos, Switzerland, the United Nations Development Program announces it will create a program to deliver technology and resources to targeted schools in the least developed countries. The project became the One Laptop per Child Consortium founded by Nicholas Negroponte. The first offering to the public required the buyer to purchase one to be given to a child in the developing world as a condition of acquiring a machine for themselves.
  • The MacBook Air is released

    The MacBook Air is released
    Apple introduces their first ultra notebook – a light, thin laptop with high-capacity battery. The Air incorporated many of the technologies that had been associated with Apple's MacBook line of laptops, including integrated camera, and Wi-Fi capabilities. To reduce its size, the traditional hard drive was replaced with a solid-state disk, the first mass-market computer to do so.
  • Apple Retina Display

    Apple Retina Display
    Since the release of the Macintosh in 1984, Apple has placed emphasis on high-resolution graphics and display technologies. In 2012, Apple introduced the Retina display for the MacBook Pro laptop and iPad tablet. With a screen resolution of up to 400 pixels-per-inch, Retina displays approached the limit of pixel visibility to the human eye. The Retina display became standard on most of the iPad, iPhone, MacBook, and Apple Watch product lines.
  • The Apple iPad is released

    The Apple iPad is released
    The iPad combines many of the popular capabilities of the iPhone, such as built-in high-definition camera, access to the iTunes Store, and audio-video capabilities, but with a nine-inch screen and without the phone. Apps, games, and accessories helped spur the popularity of the iPad and led to its adoption in thousands of different applications from movie making, creating art, making music, inventory control and point-of-sale systems, to name but a few.