PCC was an early company in the microcomputer industry.
Pertec Business SystemsEdit
Pertec's main line of computer products was aimed at key-to-disk minicomputer systems used as front-end data processors for the IBM 360/370 systems and like. This line was opened in the first half of 1970s by the Pertec PCC-2100 data entry system (do not confuse with the above PCC-2000, since Pertec PCC-2100 was a mainframe-like thing). The system was able to serve up to 16 coax terminals, two D3000 disk drives and one T1640 tape drive.
Pertec XL-40, introduced in about 1978, was a more successful successor of Pertec PCC-2100. The XL-40 machine used custom 16-bit processors built from the TI3000 or AMD2900 slices, up to 512 KB operating memory and dedicated master-capable DMA controllers for tape units, floppy and rigid disk units, printers, card reader and terminals.
The maximum configuration came in two different versions. One featured four T1600 / T1800 tape units (manufactured by Pertec), two floppy disk units (manufactured by IBM or Pertec) and four D1400 / D3400 rigid disk units (4.4, 8.8, 17.6 MB formatted capacity, manufactured by Pertec or Kennedy). The other one featured two large capacity disk units (up to 70 MB formatted capacity, manufactured by Kennedy or NEC), one line printer connected through long-line interface (DataProducts LP600, LP1200, B300, Printronix P300, P600), four station printers connected through coax (Centronics), one card reader (Pertec), four SDLC communication channels and 30 proprietary coax terminals (Model 4141 with 40x12 characters or Model 4143 with 80x25 characters).
The system was mainly used for key-to-disk operations to replace the previously popular IBM card punches and more advanced key-to-tape systems manufactured for example by Mohawk Data Sciences (MDS) or Singer. In addition to the basic key-to-disk function, the proprietary operating system, called XLOS, supported indexed file operations for on-line transaction processing even with data journaling. The system was programmed in two different ways. The data entry was either described in several tables that specified the format of the input record with optional automatic data validation procedures or the indexed file operations were programmed in a special COBOL dialect with IDX and SEQ file support.
System maintenance operations were performed in a protected supervisor mode; the system supported batched operations in the supervisor mode through the use of batch files that specified operator selections. The operating system interacted with the user through a series of prompts with automatic on-screen explanations and default selections, probably the ultimate user-friendliness achievable in text-only human-computer interaction. The XL-40 was also marketed by Triumph-Adler in Europe as TA1540 or Alphatronic P40, the beginning of a relationship that would eventually see a merger of the two companies.
Pertec's final in-house computer design was a complete departure, the MC68000-based Series 3200. The primary operating system was an in-house developed multi-tasking, multi-user operating system, but it could also run Unix. As with the XL40, Triumph-Adler marketed the system in Europe under their own brand with the model name MSX 3200 (There were four models, eventually, in the Triumph-Adler series: 3200, 3220, 3230 and 3240). The key to disk application from the XL40 was re-implemented on the 3200. The other main application was a BASIC language driven database, similar to the ones used by MAI Basic Four or Pick operating system. These BASIC database business systems would be purchased by outside companies that bundled the PCC 3200 with their software to provide a complete small business package (accounts payable, accounts receivable, payroll, inventory, sales tracking, taxes, ...) customized for specific businesses.
The 3200 was extremely advanced for the time, being intended to support up to 32 users, all using intelligent Z80 based terminals, each of which could optionally run CP/M attached to the 3200's high speed coax cable. Later an ISA bus to 3200 coax interface was made for the PC, and this allowed the usage of PC's as smart terminals for the 3200 or as networked systems running MSDOS. It was the first Pertec product to support the emerging 'Winchester' standard for miniature hard disks.
Pertec Peripherals Edit
Disk drives Edit
- FD400 series flexible disk drive - 8' Inch, DC motor
- FD500 series flexible disk drive - 8' Inch, AC Motor