A disk operating system (DOS) is a computer operating system that resides on and can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. A disk operating system provides a file system for organizing, reading, and writing files on the storage disk, and a means for loading and running programs stored on that disk. Strictly speaking, this definition does not include any other functionality, so it does not apply to more complex OSes, such as Microsoft Windows, and is more appropriately used only for older generations of operating systems.
Jumpman is a platform game written by Randy Glover and published by Epyx in 1983. It was developed for the Atari 8-bit computers, and versions were also released for the Commodore 64, Apple II, and IBM PC compatibles.
Bloodwych is a dungeon role-playing video game, a dungeon crawler, developed for the Amiga, Atari ST, MS-DOS, Amstrad CPC, Commodore 64, and ZX Spectrum. Its box featured artwork by Chris Achilleos. The plotline identifies the player as a champion of Trazere who, after recruiting up to three fellow champions, travels through dungeons and mazes fighting creatures along the way to find and destroy the evil Zendick, and banish the Lord of Entropy.
Microsoft BASIC is the foundation software product of the Microsoft company and evolved into a line of BASIC interpreters and compiler(s) adapted for many different microcomputers. It first appeared in 1975 as Altair BASIC, which was the first version of BASIC published by Microsoft as well as the first high-level programming language available for the Altair 8800 microcomputer.
Rogue is a dungeon crawling video game by Michael Toy and Glenn Wichman with later contributions by Ken Arnold. Rogue was originally developed around 1980 for Unix-based minicomputer systems as a freely distributed executable. It was later included in the Berkeley Software Distribution 4.2 operating system (4.2BSD). Commercial ports of the game for a range of personal computers were made by Toy, Wichman, and Jon Lane under the company A.I. Design and financially supported by the Epyx software publishers. Additional ports to modern systems have been made since by other parties using the game's now-open source code.
Epyx, Inc. was a video game developer and video game publisher active in the late 1970s and 1980s. The company was founded as Automated Simulations by Jim Connelley and Jon Freeman, originally using Epyx as a brand name for action-oriented games before renaming the company to match in 1983. Epyx published a long series of games through the 1980s. The company is currently owned by Bridgestone Multimedia Group Global.
Temple of Apshai is a dungeon crawl role-playing video game developed and published by Automated Simulations in 1979. Originating on the TRS-80 and Commodore PET, it was followed by several updated versions for other computers between 1980 and 1986.
Ultima IV: Quest of the Avatar, first released in 1985 for the Apple II, is the fourth in the series of Ultima role-playing video games. It is the first in the "Age of Enlightenment" trilogy, shifting the series from the hack and slash, dungeon crawl gameplay of its "Age of Darkness" predecessors towards an ethically nuanced, story-driven approach. Ultima IV has a much larger game world than its predecessors, with an overworld map sixteen times the size of Ultima III and puzzle-filled dungeon rooms to explore. Ultima IV further advances the franchise with dialog improvements, new means of travel and exploration, and world interactivity.
Ultima V: Warriors of Destiny is the fifth entry in the role-playing video game series Ultima released in March 1988. It is the second in the "Age of Enlightenment" trilogy. The game's story takes a darker turn from its predecessor Ultima IV. Britannia's king Lord British is missing, replaced by a tyrant named Lord Blackthorn. The player must navigate a totalitarian world bent on enforcing its virtues through draconian means.
Shamus is a shooter with light action-adventure game elements written by Cathryn Mataga and published by Synapse Software. The original Atari 8-bit computer version was released on disk and tape in 1982. According to Synapse co-founder Ihor Wolosenko, Shamus made the company famous by giving it a reputation for quality. "Funeral March of a Marionette", the theme song from Alfred Hitchcock Presents, plays on the title screen.
Crush, Crumble and Chomp! is a video game where the player takes control of a movie monster and attacks a major city, such as New York or San Francisco. It was published in 1981 for the TRS-80, Apple II, and Atari 8-bit computers. Ports to the VIC-20, Commodore 64, and IBM PC compatibles were released later. Some versions were published under the company's original name of Automated Simulations, while the rest use Epyx.
Apple Panic is a game for the Apple II programmed by Ben Serki and published by Broderbund Software in 1981. Apple Panic is an unauthorized version of the 1980 arcade game Space Panic, the first game with ladders and platforms. While the arcade original remained obscure, Apple Panic became a top seller for home computers. It was ported to the Atari 8-bit computers, VIC-20, IBM PC, and TRS-80.
Time Bandit is a maze shoot 'em up written for the TRS-80 Model I by Bill Dunlevy and Harry Lafnear and published by MichTron in 1983. It was ported to the TRS-80 Color Computer and Dragon 32, but enjoyed its greatest popularity several years later as an early release for the Atari ST. It was also released for the pseudo-PC-compatible Sanyo MBC-55x with 8-color display. Amiga and MS-DOS versions were ported by Timothy Purves.
Crossfire is a multidirectional shooter created by Jay Sullivan for the Apple II and published by On-Line Systems in 1981. Using keyboard-based twin-stick shooter controls, the player maneuvers a ship in a grid-like maze. Versions with joystick-control use the stick for movement and switch to firing mode when the button is held down.
Telengard is a 1982 role-playing dungeon crawler video game developed by Daniel Lawrence and published by Avalon Hill. The player explores a dungeon, fights monsters with magic, and avoids traps in real-time without any set mission other than surviving. Lawrence first wrote the game as DND, a 1976 version of Dungeons & Dragons for the DECsystem-10 mainframe computer. He continued to develop DND at Purdue University as a hobby, rewrote the game for the Commodore PET 2001 after 1978, and ported it to Apple II+, TRS-80, and Atari 800 before Avalon Hill found the game at a convention and licensed it for distribution. Its Commodore 64 release was the most popular. Reviewers noted Telengard's similarity to Dungeons and Dragons. RPG historian Shannon Appelcline noted the game as one of the first professionally produced computer role-playing games, and Gamasutra's Barton considered Telengard consequential in what he deemed "The Silver Age" of computer role-playing games preceding the golden age of the late 1980s. Some of the game's dungeon features, such as altars, fountains, teleportation cubes, and thrones, were adopted by later games such as Tunnels of Doom (1982).
Wizard and the Princess is a graphic adventure game written for the Apple II and published in 1980 by On-Line Systems. It is the second installment in the Hi-Res Adventures series after Mystery House. Unlike its predecessor, which featured monochrome drawings, Wizard and the Princess introduced color graphics. Ports for the Atari 8-bit computers and Commodore 64 were released in 1982 and 1984 respectively. The 1982 self-booting disk version for IBM PC compatibles was renamed Adventure in Serenia.
Home computers were a class of microcomputers that entered the market in 1977 and became common during the 1980s. They were marketed to consumers as affordable and accessible computers that, for the first time, were intended for the use of a single, non-technical user. These computers were a distinct market segment that typically cost much less than business, scientific, or engineering-oriented computers of the time, such as those running CP/M or the IBM PC, and were generally less powerful in terms of memory and expandability. However, a home computer often had better graphics and sound than contemporary business computers. Their most common uses were word processing, playing video games, and programming.
