What is a PS/2 port? A PS/2 port is a type of connector used for connecting keyboards and mice to a computer. Introduced by IBM in 1987, it became a standard interface for many years. The port is named after IBM's Personal System/2 series of personal computers. Unlike USB, which can handle multiple devices, each PS/2 port is dedicated to a single device. This means one port for the keyboard and another for the mouse. Although modern computers often use USB, many still include PS/2 ports for compatibility with older hardware. Understanding the PS/2 port helps in appreciating the evolution of computer peripherals.
The Birth of PS/2
The PS/2, short for Personal System/2, was IBM's attempt to revolutionize personal computing in the late 1980s. This series of computers introduced several innovations that became industry standards.
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IBM launched the PS/2 series in 1987. This was IBM's effort to regain control of the PC market from clone manufacturers.
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PS/2 introduced the 3.5-inch floppy disk. This smaller, more durable disk replaced the older 5.25-inch floppy disks.
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The PS/2 series included the first use of the VGA display standard. VGA, or Video Graphics Array, became the standard for computer displays.
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PS/2 computers were the first to use the Micro Channel Architecture (MCA). MCA was a proprietary bus standard designed to improve performance and expandability.
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IBM's PS/2 introduced the PS/2 port for keyboards and mice. This port became a standard for many years before USB took over.
Technical Innovations
IBM's PS/2 series wasn't just about new hardware; it also brought several technical innovations that influenced future computer designs.
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PS/2 systems used a new BIOS. This BIOS was more advanced and allowed for better hardware compatibility.
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The PS/2 series introduced the 72-pin SIMM memory module. This new memory module design improved memory performance and ease of installation.
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PS/2 computers featured a new keyboard design. The Model M keyboard, known for its tactile feedback and durability, became iconic.
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IBM's PS/2 series included built-in networking capabilities. This made it easier for businesses to connect their computers in a network.
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PS/2 systems supported the OS/2 operating system. OS/2 was IBM's attempt to create a more advanced operating system than DOS.
Market Impact
The PS/2 series had a significant impact on the computer market, influencing both hardware and software development.
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IBM's PS/2 series helped standardize the PC market. Many of the innovations introduced by the PS/2 became industry standards.
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The PS/2 series was initially expensive. High prices limited its adoption among consumers and small businesses.
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IBM's licensing of MCA was controversial. The proprietary nature of MCA led to resistance from other manufacturers.
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PS/2 computers were popular in corporate environments. Businesses appreciated the reliability and advanced features of the PS/2 series.
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The PS/2 series influenced the design of future IBM-compatible PCs. Many of the innovations introduced by the PS/2 were adopted by other manufacturers.
Legacy of PS/2
Even though the PS/2 series is no longer in production, its legacy lives on in many aspects of modern computing.
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The PS/2 port is still used in some modern computers. While USB has largely replaced it, the PS/2 port remains in use for certain applications.
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The Model M keyboard is still highly regarded. Many enthusiasts seek out these keyboards for their durability and typing experience.
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VGA connectors are still found on many monitors. Although newer standards like HDMI and DisplayPort are more common, VGA remains in use.
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The 3.5-inch floppy disk became the standard for many years. It was eventually replaced by CDs, DVDs, and USB drives.
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IBM's OS/2 operating system influenced later operating systems. Some features of OS/2 can be seen in modern operating systems like Windows.
Fun Facts
The PS/2 series also has some interesting and lesser-known facts that add to its unique history.
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The PS/2 series included a portable model. The IBM PS/2 P70 was a luggable computer with a built-in plasma display.
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IBM's PS/2 series had a unique advertising campaign. The campaign featured Charlie Chaplin's "Little Tramp" character.
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The PS/2 series included a model with a built-in printer. The IBM PS/2 Model 30 286 had an optional built-in thermal printer.
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IBM's PS/2 series was used in space. NASA used PS/2 computers on the Space Shuttle for various tasks.
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The PS/2 series included a model with a touchscreen. The IBM PS/2 Model 25 had an optional touchscreen display.
PS/2 in Pop Culture
The PS/2 series has made appearances in various forms of media, showcasing its impact on popular culture.
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The PS/2 series appeared in movies and TV shows. It was often used to represent cutting-edge technology in the late 1980s and early 1990s.
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IBM's PS/2 series was featured in video games. Some early PC games were designed to take advantage of the PS/2's advanced graphics and sound capabilities.
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The PS/2 series was referenced in books and magazines. It was often mentioned in discussions about the future of computing.
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IBM's PS/2 series was used in educational settings. Schools and universities used PS/2 computers for teaching and research.
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The PS/2 series was part of IBM's centennial celebrations. IBM highlighted the PS/2 series as one of its significant achievements.
Collecting PS/2
For enthusiasts and collectors, the PS/2 series remains a fascinating piece of computing history.
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PS/2 computers are sought after by collectors. Vintage computing enthusiasts appreciate the historical significance of the PS/2 series.
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The Model M keyboard is a prized collectible. Its durability and unique typing experience make it highly desirable.
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PS/2 accessories are also collectible. Items like the original mouse, manuals, and software are valuable to collectors.
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Restoring PS/2 computers is a popular hobby. Enthusiasts enjoy bringing these vintage machines back to life.
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PS/2 computers are displayed in museums. Institutions like the Computer History Museum showcase the PS/2 series.
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Online communities celebrate the PS/2 series. Forums and social media groups are dedicated to discussing and preserving the legacy of the PS/2.
The Legacy of PS/2
PS/2 connectors might seem like relics from another era, but they played a crucial role in the evolution of computer hardware. These connectors, with their distinct round shape and color-coded ports, were once the standard for connecting keyboards and mice to PCs. They offered reliable, low-latency connections that many users still appreciate today. While USB has largely taken over, PS/2 ports can still be found on some modern motherboards, a testament to their enduring utility. Whether you're a retro computing enthusiast or just curious about tech history, understanding PS/2 connectors gives you a glimpse into the past and how far we've come. So next time you see one of those round connectors, you'll know a bit more about its story and significance.
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