The Treo 90 is a

Palm OS Palm OS (also known as Garnet OS) was a mobile operating system initially developed by Palm, Inc., for personal digital assistants (PDAs) in 1996. Palm OS was designed for ease of use with a touchscreen-based graphical user interface. It is provi ...

PDA PDA may refer to: Science and technology * Patron-driven acquisition, a mechanism for libraries to purchase books *Personal digital assistant, a mobile device * Photodiode array, a type of detector * Polydiacetylenes, a family of conducting poly ...

developed by

Handspring Handspring may refer to: *Handspring (company), a company that made personal digital assistants *Handspring (gymnastics), a gymnastics move involving forward or backward rotation of the body *Rising handspring or nip-up, an acrobatic transition fr ...

. It was released on May 28, 2002. The Treo 90 was the only Treo model produced without an integrated

cellular phone A mobile phone, cellular phone, cell phone, cellphone, handphone, hand phone or pocket phone, sometimes shortened to simply mobile, cell, or just phone, is a portable telephone that can make and receive calls over a radio frequency link whil ...

. When first released it was the smallest Palm OS device on the market.

Design

The Treo 90 features a 12-bit standard (160x160) resolution color super-twisted nematic display, LED backlighting, a miniature

QWERTY QWERTY () is a keyboard layout for Latin-script alphabets. The name comes from the order of the first six Computer keyboard keys#Types, keys on the top left letter row of the keyboard ( ). The QWERTY design is based on a layout created f ...

keyboard that replaces the usual Graffiti on other PDAs, an

infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...

port and an

SD card Secure Digital, officially abbreviated as SD, is a proprietary non-volatile flash memory card format developed by the SD Association (SDA) for use in portable devices. The standard was introduced in August 1999 by joint efforts between SanDis ...

slot.

ROM update

The original Palm OS (4.1H) lacks SDIO support and reportedly has trouble formatting 128 megabyte

SanDisk SanDisk is a brand for flash memory products, including memory cards and readers, USB flash drives, solid-state drives, and digital audio players, manufactured and marketed by Western Digital. The original company, SanDisk Corporation was acquire ...

cards. The Treo 90 Updater addresses this problem and adds some other edits. The update is not a software patch but is burned into ROM. The ROM 4.1H3 update allows the use of SD Cards up to 1GB (confirmed). Additionally the new SDIO capability allows users to expand the device's features with two expansion cards: the Palm Bluetooth card, which allows the Treo 90 to access the Internet, email and messages wirelessly with a Bluetooth-enabled mobile phone and MARGI Systems Presenter-and-Go which connects the Treo 90 directly to digital LCD projectors or other VGA devices to show business presentations stored on the Treo in full color.

References

External links

Official Palm site
Palm OS devices 68k-based mobile devices {{Compu-hardware-stub

Design

ROM update

See also

References

External links