Using Braille Displays with Android

The landscape of braille display support for Android has evolved significantly since the early days of Android 4.1 Jelly Bean. What began as an experimental feature has now matured into a robust accessibility solution with expanded device compatibility and improved functionality. Here’s an updated guide to using braille displays with Android in 2025. Latest Developments […]

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Android OS Availability Q&A

The material provides answers to basic questions on the accessibility of the Android operating system for users with visual impairments and is intended to quickly obtain information on the most common difficulties in mastering this platform for a blind or visually impaired person. The data is grouped into several categories, allowing the user to choose […]

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Useful Information before purchasing an Android smartphone for the Visually Impaired

The Android mobile operating system is gaining more and more popularity, including among users with visual impairments. Nevertheless, a large assortment of devices under its control often confronts the potential buyer with the dilemma of choosing the optimal device. For users with disabilities, the question of the availability of a particular smartphone also arises. Here we will try […]

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A Brief History of DOS

Contents: Disclaimer Introduction History The Memory Map Timeline and History Chart Future of DOS Postscript Bibliography Disclaimer: Although this document is purely informative, the author claims no responsibility for any misguided souls who find a way to twist its contents into anything harmful or overly offensive. Introduction: When a computer is turned on an Operating […]

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UNIX Hacking Tutorial

———————- o Intent: ———————- This phile is geared as an UNIX tutorial at first, to let you get more familiar with the operating system. UNIX is just an operating system, as is MS-DOS, AppleDOS, AmigaDOS, and others. UNIX happens to be a multi-user- multi-tasking system, thus bringing a need for security not found on MSDOS, […]

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How to Set up a Secure Anonymous FTP Site

1. General Description of Setting up an “anonymous” ftp server. Create the user ftp in /etc/passwd. Use a misc group. The user’s home directory will be ~ftp where ~ftp is the root you wish anonymous users to see. Creating this user turns on anonymous ftp.Use an invalid password and user shell for better security. The […]

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