Treo 90
Encyclopedia
The Treo 90 is a Palm OS
PDA
developed by Handspring
. It was released on May 28, 2002. The Treo 90 was the only Treo
model produced without an integrated cellular phone and was the first model of the Treo product line. When first released it was the smallest Palm OS device on the market.
standard (160x160) resolution color super-twisted nematic display
, LED backlighting, a miniature QWERTY
keyboard that replaces the usual Graffiti on other PDAs, an infrared
port and an SD card slot.
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.
Palm OS
Palm OS is a mobile operating system initially developed by Palm, Inc., for personal digital assistants in 1996. Palm OS is designed for ease of use with a touchscreen-based graphical user interface. It is provided with a suite of basic applications for personal information management...
PDA
PDA
A PDA is most commonly a Personal digital assistant, also known as a Personal data assistant, a mobile electronic device.PDA may also refer to:In science, medicine and technology:...
developed by Handspring
Handspring (company)
Handspring was a maker of Palm OS-based Visor- and Treo-branded personal digital assistants. It was run by Jeff Hawkins, Donna Dubinsky, and Ed Colligan, the original inventors of the Palm Pilot and founders of Palm Computing, after they became unhappy with the direction in which 3Com was taking...
. It was released on May 28, 2002. The Treo 90 was the only Treo
Treo
The Palm Treo is a line of smartphones originally developed by Handspring, which was bought by Palm, Inc. They are now manufactured and maintained by Palm, Inc. Treos have a number of integrated features such as the ability to check the calendar while talking on the phone, dial directly from a...
model produced without an integrated cellular phone and was the first model of the Treo product line. When first released it was the smallest Palm OS device on the market.
Design
The Treo 90 features a 12-bit12-bit
Possibly the best-known 12-bit CPU is the PDP-8 and its relatives, produced in various incarnations from August 1963 to mid-1990. Many ADCs have a 12-bit resolution. Some PIC microcontrollers use a 12-bit word size....
standard (160x160) resolution color super-twisted nematic display
Super-twisted nematic display
A super-twisted nematic display is a type of monochrome passive matrix liquid crystal display . STN displays provide more contrast than twisted nematic displays by twisting the molecules from 180 to 270 degrees...
, LED backlighting, a miniature QWERTY
QWERTY
QWERTY is the most common modern-day keyboard layout. The name comes from the first six letters appearing in the topleft letter row of the keyboard, read left to right: Q-W-E-R-T-Y. The QWERTY design is based on a layout created for the Sholes and Glidden typewriter and sold to Remington in the...
keyboard that replaces the usual Graffiti on other PDAs, an infrared
IRDA
IRDA may refer to:* Infrared Data Association, in information and communications technology , a standard for communication between devices over short distances using infrared signals...
port and an SD card slot.
ROM update
The original Palm OS (4.1H) lacks SDIO support and reportedly has trouble formatting 128 megabyte SanDiskSanDisk
SanDisk Corporation is an American multinational corporation that designs, develops and manufactures data storage solutions in a range of form factors using the flash memory, controller and firmware technologies. It was founded in 1988 by Dr. Eli Harari and Sanjay Mehrotra, non-volatile memory...
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.