How can I make old programmes show Unicode correctly?

In one line

The rule

Unicode is a standard for showing text from all languages using special codes for each character.

Old programs often use ASCII (only English letters and symbols) or other limited systems, not Unicode. To fix this, you must make the program or the system use Unicode (like UTF-8 or UTF-16).

Let's understand it simply

Imagine you have a cricket scoreboard that only shows English numbers and letters. If you try to write a player’s name in Hindi or Tamil, it shows strange boxes or question marks. That’s because the board does not understand those letters. Unicode is like a new scoreboard that can show names from any language. Old programs are like the old scoreboard—they need help to read and show all these new letters.

How it works

1. Check the program’s settings: See if there is an option to change the text encoding to Unicode (like UTF-8).
2. Change the system settings: In Windows, you can change the system locale for non-Unicode programs to your language.
3. Use a Unicode font: Make sure the program uses a font that supports Unicode characters (like Nirmala UI, Arial Unicode MS).
4. Try a wrapper tool: Use software like 'Locale Emulator' or 'AppLocale' to help old programs understand Unicode.
5. Open the file in a modern editor: Sometimes, opening the file in Notepad or another Unicode-supporting editor can show the text correctly.

The story behind it

Unicode was created in the early 1990s by a group of engineers who wanted computers to show every language in the world. Before Unicode, each country had its own system, so sharing files was a mess. Now, Unicode makes it possible to write 'नमस्ते', '你好', and 'Hello' in the same document.

Where you see it in real life

• WhatsApp chats: You can send messages in Hindi, Tamil, or even emojis because of Unicode.
• Railway reservation sites: Names and addresses in many Indian languages are shown correctly.
• Old games or software: Sometimes, high scores or names look like '???'—that’s a Unicode problem.
• Windows Notepad: Newer versions show Hindi or Bengali text, but old Notepad may not.
• Websites: If a website shows boxes instead of letters, it’s not using Unicode fonts.

Why it matters

• Communication: Lets you read and write in your own language on any device.
• Jobs: Many IT jobs need you to fix language display issues.
• Exams: Computer science questions often ask about Unicode and encoding.
• Technology: Modern apps, websites, and even ATMs use Unicode to support all users.

Common mistakes

• Thinking changing the font is enough: The program must also support Unicode, not just the font.
• Copy-pasting Unicode text: Old programs may still show boxes if they don’t support Unicode.
• Not restarting the program: Sometimes, you need to restart after changing settings.

Remember it

If you see boxes or question marks, try changing encoding to Unicode (UTF-8) and use a Unicode font.