Most early home computer systems developed their own 8-bit character sets containing line-drawing and game glyphs, and often filled in some or all of the control characters from 0 to 31 with more graphics.
mˈoʊst ˈɜːli hˈoʊm kəmpjˈuːɾɚ sˈɪstəmz dɪvˈɛləpt ðɛɹ ˈoʊn ˈeɪtbˈɪt kˈæɹɪktɚ sˈɛts kəntˈeɪnɪŋ lˈaɪndɹˈɔːɪŋ ænd ɡˈeɪm ɡlˈɪfz, ænd ˈɔfən fˈɪld ɪn sˌʌm ɔːɹ ˈɔːl ʌvðə kəntɹˈoʊl kˈæɹɪktɚz fɹʌm zˈiəɹoʊ tə θˈɜːɾi wˈʌn wɪð mˈoːɹ ɡɹˈæfɪks.