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The last refresh to the product line was the Tandy 102, introduced in 1986 as a direct replacement for the Model 100, having the same software, keyboard, and screen, and a nearly identical, but thinner, form factor that weighed about one pound less than the Model 100. This reduction in size and weight was made possible by the substitution of ...
The first mass-produced microprocessor-based portable computer released in 1981 was the Osborne 1, developed by Osborne, which owed much to the NoteTaker's design. The company had early success with the design and went public but later due to small screen sizes and other devices being released found trouble selling the Osborne. [15]
The Portable was basically a PC/XT motherboard, transplanted into a Compaq-style luggable case. The system featured 256 kilobytes of memory (expandable to 640 KB), an added CGA card connected to an internal monochrome amber composite monitor , and one or two half-height 5 + 1 ⁄ 4 -inch 360 KB floppy disk drives, manufactured by Qume.
The Osborne 1's principal deficiencies are a tiny 5-inch (13 cm) display screen, use of single-sided, single-density floppy disk drives that store 90 kB per disk, and considerable unit weight. Adam Osborne decided to use single-sided disk drives out of concern about double-sided drives suffering head damage from rough handling [ citation needed ] .
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PMC series: (20 GB, 40 GB) ("Portable Media Center") running Microsoft Windows Mobile-based Portable Media Center, introduced in 2005. P7: 4 GB, 8 GB, and 16 GB versions with 4.3-inch, 480 × 272 resolution LCD touchscreen [49] P8; P10: (33 GB) Portable media player with dictionary apps introduced at CES 2008. 1.3" hard disk, 4-inch touchscreen.
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