386SX Plus Notebook
MS−DOS Version 2.11 manual for Leading Edge Computers was a three−ring binder for a loose−leaf page manual containing 325 pages of information that were relevant to the operation of MS−DOS 2.11. The manual contained information that introduced the user to what MS−DOS was, explaining a general definition of what an operating system was and some context to what syntax was used in the manual and the operating system. Additionally, the manual explained how to format a user's floppy disks and how to setup the OS to automatically run desired programs on startup. The manual continued to explain all about DOS commands and what the commands would do and at the end of the manual was a short appendix that covered additional information about system configuration, disk errors, and ANSI escape sequences. The manual terminated with an index for easy user reference to needed subject areas.
The Leading Edge 386SX Plus Notebook represented a compelling fusion of desktop−class performance with the portability demanded by early 1990s professionals. Powered by a 20 MHz Intel 80386SX processor, the notebook was engineered to run MS−DOS and compatible software efficiently. Its compact form made it ideal for users seeking computing power outside the confines of the office. When closed, the notebook measured just 2 inches thick, while its width and length came in at 11 1/4 inches and 8 3/4 inches respectively. When opened to a 90−degree angle, the system stood 10 inches tall, giving it a modest but practical footprint for mobile computing.
The unit's LCD screen supported both CGA and MDA graphics modes and was enhanced by two externally accessible potentiometers that allowed the user to adjust brightness and contrast directly. These physical dials, situated conveniently on the exterior, offered on−the−fly visual tuning without needing to navigate software menus. The display was one of the more advanced monochrome implementations of its time, balancing clarity with the limitations of early portable display technology. Paired with this display were hardware indicators—six LED lights located on the top panel—that informed users of system power status, hard drive activity, floppy drive access, and the states of Num Lock, Caps Lock, and Scroll Lock.
Physically, the system was built with user awareness in mind. A prominent black toggle power switch served as the main on/off control and gave a tactile experience that aligned with other durable hardware design elements of the period. Multiple ports, including serial, parallel, and external monitor connectors, expanded its functional use beyond the built−in screen and keyboard. The system was also designed to accommodate booting from a floppy drive or hard disk and allowed further configuration through BIOS settings, enabling users to tailor memory and storage options according to their workflow.
Functionally, the 386SX Plus Notebook supported a full range of input and storage tasks required by business and technical users. It featured a standard QWERTY keyboard, a built−in floppy disk drive, and the capability to interface with external hard drives and printers. The inclusion of both visual and tactile feedback systems—through LEDs, physical dials, and the toggle switch—demonstrated an emphasis on user control and transparency. Altogether, the notebook offered a level of performance and usability that made it a reliable tool during a key moment in the evolution of portable computing.
