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'''On File''' Database Management System was released in June 2024 by [[KSL]] in order to celebrate the anniversaries of CPC (40 years!) and CP/M-80 (50 years!). On File is a business application similar to the MSDOS-era PC applications and one of the most recent (2024) projects developed for CP/M. <br>
As per [[Cosmos]], On File database is disk-based, quick and reliable. It uses has been developed on the CPC screen (80x25) as a single record; thus there is plenty basis of space to edit many different fields and store large amount of data. Setting up a new database using On File is very easy: 1) start the new file system by resetting the database and hardware peripherals as well as the master record, 2software that were (contemporary) frame and/or draw available for the master record, 3) edit the fields CP/M and the structure of CPC6128: the master record512 KB [[Dobbertin Memory Expansion]], 4) append the records in [[ParaDOS]] or [[X-DDOS]] ROMS for the database on the basis of the master record. Every record has its own unique filename, stored in the disk drive. On File capacity is 200 records external (equal to 400 800 KB)floppy drive, it is thus ideal for the 20 MB [[Dobbertin Harddisc]] which supports up to 512 file entries. The database can be either flat or relational. Children records include , the ^ symbol followed by [[Amstrad Serial Interface]], the relational key and one spaceAmstrad Parallel [[Printer Port]], for example ^Z80 . The relational key can contain up to 15 symbols the [[CTM640/CTM644]] colour monitor, the [[AMX Mouse]], the [[MicroScript]] (A..Z142 KB), a..zthe [[WordStar]] (706 KB), 1..0the [[Protext]] (406 KB),+the [[Multiplan]] (208 KB),?the [[SuperCalc 2]] (240 KB), etc.the [[dBase II]] (272 KB). Parent records include , the relational key [[DR Draw]] (not 235 KB), the ^ symbol[[DR Graph]] (306 KB) followed by one space, for example Z80 the [[MAXAM]] (206 KB), the [[Atlast Plus]] (224 KB) and other [[Programming software]]. If On File includes a record contains more than one relational keygraphics screen saver, is based on the key at [[Dobbertin]] version of CP/M 2.2 (v1.2) which provides 59 KB TPA, supports the lowest field is set as RAM expansion and the active key20 MB hard disk. The original disk contains some demo master records (*.002 files) as well as the boot sectors for CP/M 2.2 (v1.2)
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