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Computers
In The Beginning
Grundy NewBrain AD
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Grundy NewBrain AD. Dimensions: 10.83 x 6.10 x 1.93 inches. Weight: 3.31 pounds. CPU: Z80A, 4 MHz. Additional processor: COP 420M by National Semiconductors. Model A doesn't include the line display that can display 16 characters. Both models can operate with a monitor or a television set.
Memory: 24K bytes of ROM expandable to 4 MBytes that contains the operating system, BASIC, the mathematical package, the graphics package that produces high resolution graphics and the character generator. 32K bytes of RAM expandable to 2 MBytes, at least 28K of which is available to the user. The Screen Display: 24 or 30 lines x 40 or 80 characters to the line without affecting the 28K bytes of RAM at your disposal. Well-formed characters, with true descenders. A full European character set. Normal or reverse video, high resolution graphics on screen of controllable size, 256, 320, 512 or 640 horizontal resolution by 250 vertical lines. A facility to setup a "logical page" of up to 255 lines x 80 characters, with the screen acting as a "window" to display it. Ability to maintain 255 such pages simultaneously and to switch rapidly between them. Text may be used on graphics screen as well as on parts of the video screen not used by graphics. Character Set: 512 characters, including the full ASCII set, all European accented characters, Greek and graphics symbols. Graphics: 20 powerful graphics commands. All text characters usable on the graphics screen. Variable-sized graphics screen, with the rest of the screen available for text - for versatility and to save memory. Software: Enhanced ANSI BASIC, screen editor (32 commands), mathematics package (10 significant figures), graphics commands. A very friendly screen editor, readily adapted to text processing. Arithmetic to 10 significant figures. Very controllable output formatting of numbers invaluable for accounting, statistics, and scientific applications. A powerful much enhanced BASIC. A very flexible operating system which allows any data stream to be opened to any device. Interfaces: Two tape cassette ports built into the processor unit. A built-in printer interface. A built-in communications interface (V24/RS232). A video monitor interface. A TV interface. An expansion interface for NewBrain system expansion modules. Keyboard: QWERTY standard typewriter pitch, action, layout and size, with editing control, graphics keys and 15 function keys. It will take CP/M and it's designed to take disks, printers and memory expansion modules up to 2MBytes. Can be connected to analog devices and joysticks. You can also setup a network with as many as 32 NewBrain computers.
Grundy NewBrain AD
06-04-2004