Old IBM Korea PC-Data Main Plane, part 1

Note: Row 1 partly overlaps, and possibly predates, row 1 in KS X 1001. But KS X 1001 changes 01-42 (Ω-01-42 is Kelvin, 01-01-42 is Ångström) and 01-46 through 01-54 (Ω-01-46 through Ω-01-54 get scattered through row 7, whereäs 01-01-46 through 01-01-54 are entirely different).

From 01-76 onward they do not correspond, 01-78 onward actually infill characters from KS X 1001, in KS X 1001 order, that aren't otherwise included. This infilling does not entirely fit in this row, and re-commences at Ω-09-01. IBM-933 (HostData) mostly follows this (where cell 1 is 0x41) but makes some swaps.

The row starts off with KS X 1001 temporarily coupled.

Note: Mapping notwithstanding, Ω-01-33 is a not-equals sign with a slash as opposed to backslash; contrast Ω-01-78.

Note: Turned from Kelvin to Ångström in KS X 1001.

Note: Ω-01-43 is changed to a fullwidth caret (fullwidth ASCII circumflex) in IBM-933 (since its row 2 EBCDIC has a cent but not a caret).

Note: KS X 1001 temporarily decouples after here.

Note: KS X 1001 temporarily recouples after here.

Note: KS X 1001 permanently decouples after here.

Note: Ω-01-76 and Ω-01-77 are changed to fullwidth square brackets in IBM-933 (since its row 2 EBCDIC has a broken bar and not-sign, but not square brackets).

The characters in this row following this point are infilled from the subset of the repertoire of KS X 1001 row 1, in KS X 1001 order, which isn't included in this row before this point. However, Ω-01-78, Ω-01-79 and Ω-01-80 are doublets of Ω-01-33, Ω-01-34 and Ω-01-35, since the latter three evidently weren't seen as close enough matches to the KS X 1001 characters, despite being in a range where KS X 1001 is actually following this row.

Note: Mapping notwithstanding, Ω-01-78 is a not-equals sign with a backslash; contrast Ω-01-33.

Note: Row 2 is fullwidth KS X 1003, thus the same as KS X 1001's row 3 (01-03-01). IBM-933 (HostData) uses an EBCDIC-based layout instead.

Note: Row 3 is basically fullwidth KS X 1001-1974, but with empty space infilled with the obsolete jamo from KS X 1001 01-04-53 through 01-04-94. IBM-933 (HostData) includes the obsolete jamo consecutively instead, since it encodes the modern jamo as Johab.

Note: Row 4 matches JIS X 0208 and GB 2312 (see JIS 01-04-01) and therefore row 10 in KS X 1001 (see 01-10-01). IBM-933 concords.

Note: Row 5 matches JIS X 0208 and GB 2312 (see JIS 01-05-01) and therefore row 11 in KS X 1001 (see 01-11-01). IBM-933 concords.