List of HP 264x ROM Part Numbers
The following table is a list of part numbers for ROM chips on various cards and options for the HP 264x series of terminals.
| Part Number | Description | Date |
|---|---|---|
| 1816-0613 | Lower case character ROM | |
| 1816-0641 | ||
| 1816-0642 | Math symbol character set | |
| 1816-0984 | ||
| 1816-0985 | ||
| 1816-0986 | ||
| 1816-1417 | Line drawing character set | |
| 1816-1425 | Large character set | |
| 1818-0130 | HP 2640A Main code start address 0 | |
| 1818-0131 | HP 2640A Main code start address 2 | |
| 1818-0132 | HP 2640A Main code start address 4 | |
| 1818-0133 | HP 2640A Main code start address 6 | |
| 1818-0157 | HP 2644A Main code start address 0 | |
| 1818-0158 | HP 2644A Main code start address 2 | |
| 1818-0159 | HP 2644A Main code start address 4 | |
| 1818-0160 | HP 2644A Main code start address 6 | |
| 1818-0161 | HP 2644A Main code start address 8 | |
| 1818-0162 | HP 2644A Main code start address 10 | |
| 1818-0171 | HP 2640C Main code start address 0 | |
| 1818-0172 | HP 2640A Main code start address 0 | April, 1976 |
| 1818-0173 | HP 2640A, HP 2640B Main code start address 2 | April, 1976 |
| 1818-0174 | HP 2640A, HP 2640B Main code start address 4 | April, 1976 |
| 1818-0175 | HP 2640A, HP 2640B Main code start address 6 | April, 1976 |
| 1818-0176 | HP 2644A Main code start address 10 | April, 1976 |
| 1818-0201 | HP 2640N Main code start address 0 | |
| 1818-0202 | HP 2640S Main code start address 0 | |
| 1818-0203 | HP 2641A Main code start address 0 | |
| 1818-0205 | HP 2641A Main code start address 2 | |
| 1818-0206 | HP 2641A Main code start address 6 | |
| 1818-0208 | 13261A-STD tape and printer I/O start address 10 | |
| 1818-0209 | 13261A-STD tape and printer I/O start address 12 | |
| 1818-0210 | 13261A-STD tape and printer I/O | |
| 1818-0259 | HP 2640B Main code start address 0 | |
| 1818-0273 | HP 2641A Main code start address 8 | |
| 1818-0274 | 13261A-001 tape and printer I/O | |
| 1818-0278 | 13293A diagnostic loader | |
| 1818-0287 | HP 2641A Main code start address 2 | |
| 1818-0303 | 13261A-002 tape and printer I/O | |
| 1818-0310 | 13261A-002 tape and printer I/O | |
| 1818-0369 | 13261A-004 tape and printer I/O | |
| 1818-0371 | 13260A-004 data communication | |
| 1818-0406 | 13261A-003 tape and printer I/O | |
| 1818-0407 | 13261A-003 tape and printer I/O | |
| 1818-0408 | 13261A-003 tape and printer I/O | |
| 1818-0409 | 13261A-003 tape and printer I/O | |
| 1818-0426 | 13261A-STD tape and printer I/O | |
| 1818-0448 | HP 2641A Main code start address 4 | November, 1977 |
| 1818-0512 | HP 2641A Main code start address 0 | March, 1978 |
| 1818-0513 | 13260A-STD data communication | |
| 1818-0547 | 13260A-003 data communication | |
| 1818-0583 | 13260C-001 data communication | |
| 1818-0584 | 13260C-STD data communication | |
| 1818-0585 | 13260C-STD data communication | |
| 1818-0590 | HP 2647A main code | |
| 1818-0591 | HP 2647A main code | |
| 1818-0592 | HP 2647A main code | |
| 1818-0593 | HP 2647A main code | |
| 1818-0594 | HP 2647A main code | |
| 1818-0595 | HP 2647A main code | |
| 1818-0596 | HP 2647A main code | |
| 1818-0597 | HP 2647A main code | |
| 1818-0598 | HP 2647A main code | |
| 1818-0599 | HP 2647A keyboard code | |
| 1818-0600 | 13260A-006 data communication, HP 2647A data communication | |
| 1818-0601 | 13260A-006 data communication | |
| 1818-0602 | HP 2647A file system | |
| 1818-0603 | HP 2647A file system | |
| 1818-0604 | HP 2647A file system | |
| 1818-0605 | HP 2647A file system | |
| 1818-0606 | HP 2647A file system | |
| 1818-0607 | HP 2647A file system | |
| 1818-0608 | HP 2647A file system | |
| 1818-0609 | HP 2647A file system | |
| 1818-0610 | HP 2647A file system | |
| 1818-0611 | HP 2647A file system | |
| 1818-0614 | HP 2647A multi-point w/monitor mode | |
| 1818-0628 | 13260C-006 data communication, HP 2647A multi-point w/o monitor mode | |
| 1818-0629 | 13260C-006 data communication, HP 2647A multi-point | |
| 1818-1046 | 13260A-STD data communication | |
| 1818-1047 | 13260C-001 data communication | |
| 1818-1388 | 13261A-003 tape and printer I/O, 13296A-048 GPIB interface |
