Chapter 13 Introduction to Computer Code speak khmer

Computer Code Representation and ASCII Codes Overview
• Computer code is a set of instructions executed by a computer.
• It is one of two components of software, the other being data.
• Data is represented in binary form in a computer.
• Computer code includes numerical and alphanumeric data.
Video #1

Watch The Complete Chapter of Computer Fundamental in Khmer Here

Binary Code Decimal (BCD)
• BCD is a binary encoding of decimal numbers.
• Each decimal digit is represented by a fixed number of bits.
• BCD can only represent 6 digits (64 characters).

Extended Binary Code Decimal Interchange Codes (EBCDIC)
• EBCDIC adds 2 more bits to represent 256 characters (28).
• ASCII codes represent 128 English characters as numbers.
• ASCII codes are used for text representation and data transfer.
Video #2

Watch The Complete Chapter of Computer Fundamental in Khmer Here

Useful links:

⚡ How to Download and Install Khmer Unicode for Windows and Mac OSX (apple)
⚡ Free Ebook Download - free PDF download
⚡ Learn Excel Formulas with Video and Example Download