システム文も字じ集しゅう合ごう

Meanings

1

noun

system character set

computing

Technical computing term for the set of characters supported by a particular system or platform.

fit, suit, join

文も字じ集しゅう合ごう
文字集合 is a general term for any character set, while システム文字集合 specifically refers to the character set of a given system.

Compound of システム (system) and 文字集合 (character set).