Commodore PC 10

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Il Commodore PC 10 (il mio esemplare è il modello 9100-00) è un computer IBM compatibile prodotto nel 1984. L'esemplare in mio possesso si presenta in buone condizioni estetiche, con tastiera originale, monitor CRT a fosfori verdi Commodore 76BM13/00E, processore Intel 8088, 256 KB RAM e 2 floppy disk drive da 5.25" 360 KB.

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Commodore PC10 vintage computer, original monitor, keyboard, keyboard, crt

Dopo aver acquistato questo computer Commodore PC10, l'ho smontato e l'ho pulito per bene. Il computer si presenta in buone condizioni estetiche. Come vedremo più avanti, in altri video, il computer ha qualche piccolo difetto da sistemare. Inoltre, sto provando ad effettuare qualche upgrade.

Startup screen

The computer starts with the following texts:

Commodore BIOS Rev. 2.03                    380 258 - 03
Copyright (C) 1985,1986 by Commodore Electronics Ltd.
Copyright (C) 1984,1985 by Phoenix Software Associates Ltd.
All Rights Reserved.
LPT1 at 0378h
COM1 at 03F8h
RAM: 256 KBytes OK

Runs diagnostic tests and counts all 256 KB of RAM. Then load the software on the 360 ​​KB diskette.

Interested in how to expand the RAM on this computer? Here's the solution!

Commodore PC10, CBM PC 10, IBM compatibile, MS DOS, startup screen, schermata avvio, boot, LPT1, COM1, RAM, Commodore BIOS rev 2.03 380 258 -03, Commodore Electronics, Phoenix Software Associates

Technical characteristics of the vintage Commodore PC 10 computer

CPU: Intel 8088, 16 bit, 4.77 MHz

RAM: 256 KB, chips soldered on mainboard; RAM is expandable up to 640 KB

ROM: 8 KB (contains the POST = Power On Self Test and the BIOS = Basic Input-Output System)

Commodore PC10, CBM PC 10, IBM compatible, MS DOS, motherboard, power supply, internal, video card

Graphics: ATI graphics card on 8-bit ISA slot, CW16800-A graphics processor, 64 KB RAM, MDA, CGA, Hercules, with 9-pin DB connector

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Modalità testo: 80 colonne x 25 righe, 132 x 25, 132 x 44, B&W e a colori

Graphics mode: 640 x 200 pixels 4 colors, 320 x 200 pixels 16 colors

Scheda video ISA 8 bit, ATI CW16800-A, 64 KB RAM, MDA, CGA, Hercules

Anche se la scheda video supporta i colori, il mio computer ha il monitor Commodore 76BM13/00E, che è a tubo catodico a fosfori verdi. All'interno del computer è presente una seconda scheda video: Commodore Monochrome PCB ASSY 380003-01 REV D.

Scheda video ISA 8 bit, Commodore Monochrome PCB ASSY 380003-01 REV D

Audio: beep

Keyboard: external 5-pole DIN

Originally shipped operating system: MS DOS version 3.20

Supporti di archiviazione: n. 2 floppy disk drive interni, 5.25", 360 KB

Commodore PC10, CBM PC 10, computer desktop vintage, floppy disk

Expansion ports, internal:

  • N. 5 ISA 8 bit expansion ports
  • Controller for floppy disk drives, with 34-pin connector
  • N. 18 free sockets for RAM expansion (8 bit + parity)
  • No. 1 socket for Intel 8087 mathematical coprocessor
Commodore PC10, CBM PC 10, IBM compatibile, MS DOS, scheda madre, motherboard, interno, CPU PCB-ASSY NO. 380000-01 REV D, 380001-01 REV E, KALEX, Intel 8088, MOS technology

The motherboard is divided into two parts: the CPU PCB (ASSY NO. 380000-01 REV D) and I/O PCB (ASSY NO. 380001-01 REV E).

Commodore PC10, CBM PC 10, IBM compatible, MSDOS, 5-pole DIN keyboard connector

Expansion ports, external:

  • 5-pole DIN keypad (front)
  • 25 pole DB serial
  • Parallel db 25 poles (centronics)
  • N. 2 9-pole DB connectors for monitor (the 2 ISA video cards, shown above)
Commodore PC10, CBM PC 10, rear ports, serial, parallel centronics, video, power, Commodore 9100-00

Size and weight: to be measured.

Emulation

Il Commodore PC 10 si avvia con sistema operativo MS DOS. E' possibile emulare l'ambiente MS-DOS con DOSBox (sebbene DOSBox sia un emulatore per sistemi x86).

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Power supply

L’alimentatore del personal computer Commodore PC 10 è all'interno al computer, accetta tensioni di 220-240 Vac 50 Hz e assorbe una potenza di 170 W. Posteriormente al computer, è presente il connettore di alimentazione IEC C14, dove collegare il cavo di alimentazione di rete.

The voltages generated, in direct current, are:

  • 5V
  • 12V
  • -12V

The -5V voltage is generated by a regulator on the motherboard, starting from -12V.

The power switch is on the back of the computer, just above the power connector.

Commodore PC10 Vintage Computer, Commodore keyboard and CRT monitor green phosphors Commodore 76bm13/00e

Papers

1. Commodore PC10 PC20 PC40 guides
2. Commodore PC10 PC20 service manual
3. Commodore PC10 I - II - III service manual
4. Commodore PC10 BIOS ver 2.03 2.05 (M27C128 EPROM)

Date of entry into the collection: 01/21/2024

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