Olivetti Quaderno
The Quaderno was a miniportable (smaller than a regular) notebook, produced by Olivetti in two versions since 1992: Quaderno (PT-XT-20) and Quaderno 33 (PT-AT-60).

History
When it made its debut in 1992,. this model releases a good idea of a laptop that was smaller (has the same size as an A5 sheet) and light (1 kg against the average weight of 3 kg of a laptop of the same period) notebook. The first version did not have the expected success, despite having an excellent processor and also features unknown to the contemporaries, such as the microphone and integrated amplifiers. The main reason for this failure was the strong limitations of the operating system, not up to the potential of the computer. For this reason, Olivetti decided to present a new version just one year after the first, the Quaderno 33, equipped with the operating system Windows 3.1.

Awards:

 1992, 25° Premio SMAU Industrial Design (Italia)  
 1993, IF Product Design Award (Germany)

Specifications
Scheme: Ugo Carena and Alessandro Santalucia.
Design: Mario Bellini and Hagai Shvadron.

QUADERNO (PT-XT-20) 
CPU: NEC V30HL, 16MHz.
Memory: 1MB (640KB + 360KB LIM expansion).
Hard disk: 20MB, 2.5"
Operating system: Olivetti MS-DOS.
PCMCIA: slot Type II.
Dimensions: 210 x 148 x 32 mm.
Weight: 1050 gr.
Display: LCD 14 x 10.5 cm, DCGA (640 x 400) 4 gray color levels.
Battery: 6 AA batteries Ni-Cad 7.2V.

QUADERNO 33 (PT-AT-60) (only differences)
CPU: Intel 80386, 20MHz.
Memory: 4MB (expandable with RAM card PCMCIA).
Hard disk: 60MB.
Operating systems: MS-DOS 5.0 – Windows 3.0.
Display: LCD with backlit, VGA 640 x 480 pixel with 16 gray color levels.
Input device: integrated Trackball.

References

Literature 

 Olivetti Quaderno MCmicrocomputer (1992) pages 128–130
 Olivetti Quaderno 33 MCmicrocomputer (1993) pages 154–158

Subnotebooks
Olivetti personal computers
Computer-related introductions in 1992