{"id":71,"date":"2023-06-11T19:24:45","date_gmt":"2023-06-11T19:24:45","guid":{"rendered":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/?page_id=71"},"modified":"2023-06-11T19:24:45","modified_gmt":"2023-06-11T19:24:45","slug":"ascii-extended-ascii-unicode","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/ascii-extended-ascii-unicode\/","title":{"rendered":"ASCII, Extended ASCII & Unicode"},"content":{"rendered":"
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Introduction<\/h2>\n
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Converting text\u00a0to binary<\/h2>\n

Converting text to binary is a simple process. You simply look up the decimal value for the character in the ASCII table below, and then convert that value from decimal to binary, like we did last lesson<\/a>.<\/p>\n

Example – hello<\/strong><\/p>\n

\"ascii-hello-example\"<\/p>\n

ASCII Table<\/strong><\/p>\n

DO NOT USE THE HEX COLUMN!!!<\/span><\/strong><\/p>\n

\"Click<\/a>

Click to enlarge<\/p><\/div>\n

ASCII Table<\/p>\n\n<\/div>

Binary to Text<\/h2>\n
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Converting Binary to Text<\/h3>\n

Converting from binary to text is nice and simple. You simply convert each binary number to a decimal number and then look up that number on the ASCII table.<\/p>\n

\"ascii-goodbye-example\"<\/a><\/p>\n\n<\/div>

Practice<\/h2>\n
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Convert these text examples to binary:<\/strong><\/p>\n

a. dog<\/p>\n

b. cat<\/p>\n

c. mouse<\/p>\n<\/div>\n

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Convert these binary examples to text:<\/strong><\/p>\n

d.\u00a001100101 01100111 01100111<\/p>\n

e.\u00a001101000 01100001 01101101<\/p>\n

f.\u00a001100011 01101000 01101001 01110000 01110011<\/p>\n<\/div>\n\n<\/div>

ASCII<\/h2>\n
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ASCII<\/h3>\n

Pros<\/strong><\/p>\n