page_title: Osborne 1
section_title: Games
hierarchical_section_title: Osborne 1 / Games
caption_attribution_description: Image of ADVENT running on an Osborne II Computer circa 1982
context_page_description: The Osborne 1 is the first commercially successful portable microcomputer, released on April 3, 1981 by Osborne Computer Corporation. It weighs 10.7 kg, cost US$1,795, and runs the CP/M 2.2 operating system. It is powered from a wall socket, as it has no on-board battery, but it is still classed as a portable device since it can be hand-carried when packed.
  The computer shipped with a large bundle of software that was almost equivalent in value to the machine itself, a practice adopted by other CP/M computer vendors. Competitors quickly appeared, such as the Kaypro II.
context_section_description: Since, like most CP/M systems, the display of the Osborne does not support bit-mapped graphics, games are typically character based games, like Hamurabi or text adventures (the 1982 game  Deadline, for example, packaged in a dossier type folder and came on two 5​¹⁄₄" diskettes.). Compiled and MBASIC interpreted versions of Colossal Cave Adventure are available for the Osborne. Some type in games use the Osborne's character-mode graphics.
caption: ADVENT (Colossal Cave Adventure) running on an Osborne Computer c. 1982
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