Posts Tagged ‘Input Device’

What You Need to Run GEOS

Saturday, October 2nd, 2010

You must have the following hardware and software in order to use GEOS:
• a Commodore 64 or 64C computer, or a Commodore 128 (running in 64 mode).

• a compatible monitor or TV. The best monitor to use is a Commodore 1702,1802,1902 or 1902A monitor. Televisions can be used, but the resolution is sharper with a Commodore monitor.

• an input device (joystick, mouse, Koala Pad, or Inkwell light pen).

• one 5 1/4 inch disk drive (1541 or 1571).

• GEOS package, which contains three program diskettes and this manual.

• blank 5 1/4 inch diskettes (for backup disks and work disks).

• The following optional equipment is recommended so that you can take full advantage of the power and versatility of GEOS. This equipment is not, however, necessary to the operation of GEOS.

• a RAM Expansion Unit (REU). With an REU the operating speed of GEOS is greatly increased. In addition, you will be able to dedicate more disk space to the GEOS program you are currently using.

• additional disk drives (1541,1571, or 1581). You can install two disk drives and a RAM Expansion Unit for use with GEOS.

• a GEOS supported printer.



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Welcome to GEOS

Wednesday, September 29th, 2010

Your new Graphic Environment Operating System (GEOS) ushers in a whole new world for your Commodore 64, 64c, or 128. GEOS brings you the power and ease that icons, windows, and pull-down menus provide. A simple keyboard command or click of your input device is all it takes to get the job done.

This manual is divided into 12 chapters:

1: Getting Started guides you through the initial process of installing GEOS, creating backup copies of your GEOS disks, booting GEOS, and exiting GEOS. Also included is general advice on using work disks.

2: Learning GEOS introduces you to some basic techniques necessary to manage GEOS applications and move around the system. A tutorial is provided to give you some hands-on experience; you will find that learning GEOS is fun and easy.

3: The GEOS deskTop describes in detail how you can move around GEOS, manage files, desk accessories, and applications, and use one to three disk drives. The GEOS deskTop has been upgraded to enable multiple file selection, file retrieval from the waste basket, more keyboard shortcuts, easier printer and input device default procedures, the ability to add or delete disk note pad pages, the use of a deskTop clock, and more.

4: geoPaint is a powerful color graphics program that enables you to create graphics in a wide variety of ways. geoPaint has been enhanced to include bitmap scaling, a grid, and special commands to create images precisely on the screen.

5: geoWrite 2.1 is an enhanced version of the easy-to-use “what you see is what you get” GEOS word processor.

6: geoSpell is a powerful spell-checking program that enables you to create and alter personal dictionaries.

7: geoMerge is a mail merge program that enables you to combine data from two documents to produce a customized form letters and mailing labels.

8: geoLaser is an application that enables you to print geoWrite and geoPaint documents on the Apple LaserWriter printer.

9: Text Grabber is an application that reads non-GEOS files from supported word processors and converts them to geoWrite format.

10: Paint Drivers is an application that creates one or more geoPaint documents from a geoWrite or geoPublish document. Once converted, the new document or series of documents can be enhanced with geoPaint” s graphic tools.

11: Desk Accessories are smaller applications that perform handy functions while on the deskTop or in an application. These accessories include the Alarm Clock, Calculator, Note Pad, Photo Manager, Text Manager, and Preference Manager. The Photo Manager and Text Manager have been enhanced to enable you to name, search for, and rename the pages of a photo album or text album. A new desk accessory, the Pad Color Manager, enables you to color file icons and the disk note pad on the deskTop.

12: Appendices include a glossary, listing of the options in all command menus, font samples, a detailed listing of the contents of each disk in your GEOS 2.0 package, and instructions for running the GEOS demonstration programs.



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Use of main computer storage

Saturday, August 28th, 2010

When a number, letter of the alphabet or special character is read from an input device into main computer storage or is moved from one location to another, the character is stored using its assigned bit configuration. Once a character or bit configuration has been stored in a location in main computer storage, it will remain in that location until another character is placed in the same location.
This feature of main computer storage has two important consequences. First, once data is placed in a location in storage, it will remain there until changed. This allows the program to reference the data for any processing which might be required while the program is being executed.
Second, since data which is moved to or read into a particular location in storage replaces the data which was stored there, a single set of instructions in a computer program which reference particular locations in main computer storage can be used to process many different records which would each be stored in the same storage locations as they are processed. This ability enables a computer programmer to write one sequence of instructions which can process hundreds or thousands of different records.
Figure 4-10 illustrates the processing that occurs as a series of area codes are entered into computer storage from a computer terminal. The first area code, 212, is entered from the terminal and is stored at storage locations 6000, 6001, and 6002. The field, once in storage, would then be processed as required.
When the second area code, 714, is entered from the terminal, it is also stored in storage locations 6000, 6001, and 6002. It replaces the value 212 which was previously stored in these locations. Area code 714 can then be processed by the same instructions which processed area code 212.



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