What are the advantages and disadvantages of ASCII

Analysis of ASCII advantages and disadvantages:

Advantages:

1. Simple and Efficient:

   • Uses 7-bit encoding, small space occupation
   • Each character is fixed at 1 byte, fast processing speed
   • Simple encoding and decoding algorithms

2. Good Compatibility:

   • Supported by almost all systems and programming languages
   • Unicode is backward compatible with ASCII
   • Widely used in network protocols and file formats

3. High Standardization:

   • International standard (ISO 646)
   • Unambiguous character definitions
   • Cross-platform consistency

4. Low Resource Usage:

   • Minimal storage space
   • Low transmission bandwidth requirements
   • Suitable for embedded systems

Disadvantages:

1. Limited Character Set:

   • Only supports 128 characters
   • Does not support Chinese, Japanese, and other non-Latin characters
   • Cannot meet internationalization needs

2. Limited Functionality:

   • Lacks special symbols and graphic characters
   • Does not support emojis
   • Cannot represent mathematical symbols

3. Scalability Issues:

   • Extended ASCII versions are not unified
   • Different vendor implementations have differences
   • Leads to compatibility issues

4. Insufficient Modernization:

   • Cannot meet modern application requirements
   • Needs to be used in conjunction with Unicode
   • Limited in multilingual environments

Applicable Scenarios:

• Pure English text processing
• Simple network protocols
• Embedded systems
• Scenarios requiring minimal storage space

Inapplicable Scenarios:

• Multilingual applications
• Internationalized software
• Scenarios requiring rich character sets
• Modern internet applications