In the early 1980s, a traveling executive accessed his office email through a Panasonic RL-H1400 handheld computer, using an RL-P4001 Acoustic modem at a public telephone. The Panasonic RL-H1400, initially introduced in 1982, was priced at approximately $600. I was fortunate to obtain the manual, which provided the following information: “Introduction: The Panasonic HHCTM represents an unexpected breakthrough in technology—a cost-effective personal computer that fits in the palm of your hand! This innovative device features a self-instructing multiple-choice menu system for quick program access, a self-defining function key system for customization, and a self-assignable keyboard for mastering complex programs with ease. Key Features: - Utilize your home TV screen as a display unit. - Print materials generated by your Hand Held Computer. - Connect your HHC to regional and national computer information banks via telephone, accessing extensive libraries and up-to-the-minute information. - Expand your computer's memory using additional memory storage attachments. - Benefit from an electronic teacher for high-speed reading, spelling, vocabulary building, computer programming, memory improvement, and more. - Enjoy a programmable scientific calculator. - Perform word processing, advanced editing, and filing. - Access guides for tax information, diet programs, and more. - Challenge electronic opponents to chess, checkers, and various other games. - Access BASIC and SNAP computer languages for creating your own programs. - Store addresses, phone numbers, instructions, notes, business or scientific definitions, technical tables, formulas, calorie counters, personal records, prices, recipes, tax and financial records, or any data you need to recall instantly. - Utilize a Clock/Controller to manage your schedule for days, weeks, or even years in advance."