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What is the .FNN File Extension?


.FNN File Extension Description:

The basics for the Disk Operating System were derived from a product called QDOS (Quick and Dirty Operating System). The Seattle Computer Company developed this early version of the program. QDOS was created as a variant of the CP/M (Control Program/ (for) Microcomputers) operating system. Digital Research developed CP/M.

The market for DOS was created when IBM created its line of microcomputers. IBM wanted to have an operating system for their line of computers similar to CP/M. CP/M by Digital Research was the most common operating system used at the time for Intel8080 and Zilog Z80 microcomputers. IBM approached Microsoft in a bid to have an operating system developed for their computers. Microsoft directed IBM to Digital Research. Digital Research refused to develop CP/M so that it could be used on IBM machines. Microsoft later accommodated IBM by acquiring QDOS. QDOS was later renamed 86-DOS before it was purchased by Microsoft. Microsoft renamed the platform MS-DOS.

Initially, Microsoft Corporation allowed MS-DOS to be used by several companies for several computers. The program was even renamed when it was launched with other computers. Microsoft later took back rights to the product. The only version that was left in the hands of the company using it was IBM. Microsoft's platform was named MS-DOS while IBM continued development on PC-DOS. Digital Research even attempted to develop their own version DR-DOS, which could support software written for MS-DOS and CP/M-86 platforms. The Digital Research version was renamed Novell DOS 7 after the company was acquired by Novell Inc. Novell DOS 7 was included in the development of Caldera, DeviceLogics and Lineo.

The program uses files with the Fnn file extension to store screen text fonts. Files with the file extension Fnn are referenced to by the system when they show words. Screen text fonts with the Fnn file extension contain character sets in a specific size. The letters "nn" in the file extension Fnn are interchanged with numbers that represent the size of the fonts stored in the file. Files with the Fnn file extension can be used to store screen text fonts between 6 to 16 pixels. Screen text fonts with a height of 6 pixels are given the file extension .f06 while fonts with a 16 pixel height are given the .f16 file extension.

Author: Seattle Computer Company
Author URL: N/A
Related Applications: Disk Operating System
Common Path: N/A

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Do you have errors with .FNN files?

What Causes .FNN files Errors to Occur?

.FNN files errors are potential severe Windows file errors and many times are brought on because of a corrupted registry that you should repair right away to prevent even further corruption in other software and/or devices. Experiencing these errors puts your PC in danger for fatal crashes, blue screen errors as well as hardware failure.

What are the Symptoms of .FNN files Errors?

Typical symptoms with .FNN files errors include slower pc speed, extended application start up times, problems opening documents, excessive pauses in software functions, programs closes without an indication of error, screen freezing and software lock up.

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How to Fix .FNN File Extension Errors    |    What is the .FNN File Extension?    |    Repair .FNN File Errors