Items (8 total)

The Osborne 1 portable computer system.

This model has the "Screen Pac" upgrade, provided by Osborne, which adds an RCA connector to facilitate an external monitor connection, while also adding 80-column display support, up from the default…

An internal 300 baud modem. Internal 300 baud modems were sold as a peripheral to the Osborne 1, and were installed in the left floppy disk storage bay.

The motherboard for the Osborne 1 system.

The two internal, single sided 5¼-inch floppy disk drives for the Osborne 1, located on the left and right sides of the CRT display.

Osborne advertised the drives as holding 102 KB each.

The 8-bit Zilog Z80 microprocessor onboard the Osborne 1 motherboard.

The Osborne 1 keyboard, also the lid and handle to the computer. Attached to the system through the 24-pin port.

The 5" monochrome CRT display for the Osborne 1. The screen displayed 52 characters in 24 rows. However the display could present 128 characters at a time; the user needed to use the cursor keys to display characters beyond the current 52 onscreen.

CP/M 2.2 is the operating system for the Osborne 1. It consists of a basic input/output system, a basic disk operating system (BDOS) and a console command processor (CCP).