![IBM's first laptop, the PC Convertible 5140, featured tactile Brown Alps switches, an Intel 8088 CPU running at 4.77 MHz and weighed 13 pounds : r/MechanicalKeyboards IBM's first laptop, the PC Convertible 5140, featured tactile Brown Alps switches, an Intel 8088 CPU running at 4.77 MHz and weighed 13 pounds : r/MechanicalKeyboards](https://external-preview.redd.it/PD0FGmNDrUwo1W3JrKe9InGL91cMkgHGxsJ96smdZOY.jpg?auto=webp&s=8a07abe7515c96e9dea9ac4607f157ba2aeefc1c)
IBM's first laptop, the PC Convertible 5140, featured tactile Brown Alps switches, an Intel 8088 CPU running at 4.77 MHz and weighed 13 pounds : r/MechanicalKeyboards
![foone🏳️⚧️ on Twitter: "It was released in early 1984, and effectively replaced by the IBM PC Convertible in 1986, which has pretty much the same specs but with an LCD screen, battery, foone🏳️⚧️ on Twitter: "It was released in early 1984, and effectively replaced by the IBM PC Convertible in 1986, which has pretty much the same specs but with an LCD screen, battery,](https://pbs.twimg.com/media/EF7qvBkUUAATENs.jpg:large)
foone🏳️⚧️ on Twitter: "It was released in early 1984, and effectively replaced by the IBM PC Convertible in 1986, which has pretty much the same specs but with an LCD screen, battery,
![Laptop computer, model 5140, sometimes known as a PC convertible, made by IBM, New York, USA, shown here with user manuals. The IBM Personal Computer ... - SuperStock Laptop computer, model 5140, sometimes known as a PC convertible, made by IBM, New York, USA, shown here with user manuals. The IBM Personal Computer ... - SuperStock](https://cdn.superstock.com/1895/Comp/1895-42606.webp)