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.
After purchasing this computer Commodore Pc10, I dismantled it and cleaned it well. The computer presents itself in good aesthetic condition. As we will see later, in other videos, the computer has some small flaws to fix. Also, I'm trying to make a few upgrades.
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!
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)
Graphics: ATI graphics card on 8-bit ISA slot, CW16800-A graphics processor, 64 KB RAM, MDA, CGA, Hercules, with 9-pin DB connector
Text mode: 80 columns x 25 lines, 132 x 25, 132 x 44, b & w and color
Graphics mode: 640 x 200 pixels 4 colors, 320 x 200 pixels 16 colors
Even if the video card supports colors, my computer has the Commodore monitor 76bm13/00e, which is cathodic tube with green phosphors. Inside the computer there is a second video card: 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
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
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).
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)
Size and weight: to be measured.
Emulation
The 10 PC Commodore starts with the MS DOS operating system. It is possible to emulate the MS-DOS environment with Dosbox (although Dosbox is an emulator for X86 systems).
Power supply
The power supply of the 10 PC 10 PC computer is inside the computer, accepts tensions of 220-240 Vac 50 Hz and absorbs a power of 170 W. posteriorly on the computer, there is the IEC C14 power connector, where to connect the network power cable.
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.
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