Both the IBM 1130 and
the IBM System/360 Model 44 had an integrated disk drive,
the IBM 2310. The IBM 2310's disk cartridge is the IBM 2315.
The internal formatting of the 2315 on each system was different, and the 360/44 could store 1,171,200 characters
[1][2],
whereas the 1130 stored 1,024,00 characters
[3][4]
↑Contrary
to the 1,088,000 "characters"
(8 data bits, 1 parity bit) it says about the Integrated Single Disk
Storage Drive at https://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP2044.html,
the IBM 2315 Cartridge used by the IBM 2310 disk drive in the IBM System 360 Model 44,
the correct capacity, as cited in the Functional Characteristics manual, is 1,171,200.
↑Both situations involve 200 tracks/cylinders of data.
(1130: 512,000 words / 1,024,000 bytes; 360/44: 366 x 16 * 200 = 1,171,200 bytes)
HENCE, 1,088,000 is incorrect for the 360/44.