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Treo 270
The Treo 270 was a dual-band GSM flip form factor smartphone made by Handspring. Released on May 31, 2002 for $499 with service contract, $699 without service contract, https://web.archive.org/web/20110617074305/http://news.cnet.com/1606-2_3-31061.html (Archived copy)] it was the fourth device in the Palm Treo, Treo family. It featured a full keyboard and shipped with version 3.5.2H. The 270 had a 160×160 color screen, 16 MB of internal memory and a 33 MHz DragonBall CPU. During its development, the Treo 270 was codenamed "Atlanta". [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handspring Treo 270 , an acrobatic transition from supine to squatting position
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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 A nip-up is an acrobatic spring from a supine position (lying horizontally, facing upward) to a standing position. It is executed by propelling the body away from the floor so that the performer is momentarily airborne, and typically ends with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handspring (company)
Handspring, Inc. was an American electronics company founded in 1998 by the founders of Palm, Inc. after becoming dissatisfied with the company's direction under new owner 3Com. The company developed Palm OS–based Visor- and Palm Treo, Treo-branded personal digital assistants. In 2003, the company merged with Palm, Inc.'s hardware division. History The company was founded in June 1998 by Jeff Hawkins, Donna Dubinsky, and Ed Colligan, the original inventors of the PalmPilot and founders of Palm, Inc., after they became unhappy with the direction of the company after its acquisition by 3Com. Their Visor line of PDAs synced by USB, which was significantly faster than Palm's RS232 serial sync. The Springboard expansion slot provided GPS navigation, cameras, music players, cell phone service, and most of the functions of a "smart phone". In June 2000, during the dot-com bubble, the company became a public company via an initial public offering. Shares rose 35% on the first day of tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smartphone
A smartphone is a portable computer device that combines mobile telephone and computing functions into one unit. They are distinguished from feature phones by their stronger hardware capabilities and extensive mobile operating systems, which facilitate wider software, internet (including web browsing over mobile broadband), and multimedia functionality (including music, video, cameras, and gaming), alongside core phone functions such as voice calls and text messaging. Smartphones typically contain a number of metal–oxide–semiconductor (MOS) integrated circuit (IC) chips, include various sensors that can be leveraged by pre-included and third-party software (such as a magnetometer, proximity sensors, barometer, gyroscope, accelerometer and more), and support wireless communications protocols (such as Bluetooth, Wi-Fi, or satellite navigation). Early smartphones were marketed primarily towards the enterprise market, attempting to bridge the functionality of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Random Access Memory
Random-access memory (RAM; ) is a form of computer memory that can be read and changed in any order, typically used to store working Data (computing), data and machine code. A Random access, random-access memory device allows data items to be read (computer), read or written in almost the same amount of time irrespective of the physical location of data inside the memory, in contrast with other direct-access data storage media (such as hard disks, CD-RWs, DVD-RWs and the older Magnetic tape data storage, magnetic tapes and drum memory), where the time required to read and write data items varies significantly depending on their physical locations on the recording medium, due to mechanical limitations such as media rotation speeds and arm movement. RAM contains multiplexer, multiplexing and demultiplexing circuitry, to connect the data lines to the addressed storage for reading or writing the entry. Usually more than one bit of storage is accessed by the same address, and RAM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 provided with a suite of basic applications for Personal information manager, personal information management. Later versions of the OS have been extended to support smartphones. Several other licensees List of Palm OS devices, have manufactured devices powered by Palm OS. Following Palm's purchase of the Palm trademark, the currently licensed version from Access Co., ACCESS was renamed ''Garnet OS''. In 2007, ACCESS introduced the successor to Garnet OS, called Access Linux Platform; additionally, in 2009, the main licensee of Palm OS, Palm, Inc., switched from Palm OS to webOS for their forthcoming devices. Creator and ownership Palm OS was originally developed under the direction of Jeff Hawkins at Palm, Inc., Palm Computing, Inc. Palm was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Touchscreen
A touchscreen or touch screen is the assembly of both an input ('touch panel') and output ('display') device. The touch panel is normally layered on the top of an electronic visual display of an information processing system. The display is often an LCD, AMOLED or OLED display while the system is usually used in a laptop, tablet, or smartphone. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus or one or more fingers. Some touchscreens use ordinary or specially coated gloves to work while others may only work using a special stylus or pen. The user can use the touchscreen to react to what is displayed and, if the software allows, to control how it is displayed; for example, zooming to increase the text size. The touchscreen enables the user to interact directly with what is displayed, rather than using a mouse, touchpad, or other such devices (other than a stylus, which is opti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium-ion Battery
A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. It is the predominant battery type used in portable consumer electronics and electric vehicles. It also sees significant use for grid-scale energy storage and military and aerospace applications. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in LFP cells has been traced to poorly made cells). Chemistry, performance, cost and safety characteristics vary across types of lithium-ion batteries. Most commercial Li-ion cells use intercalation compounds as the active materials. The anode or negative electrode is usually graphite, although silicon-carbon is also being increasingly used. Cells can be manufactured to prioritize either energy or power density. Handheld electronics mostly use lithium polymer batteries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSTN
Pioneering passive-matrix STN LCD, Brown Boveri, Switzerland, 1984 A super-twisted nematic display (STN) is a type of monochrome passive-matrix liquid crystal display (LCD). History This type of LCD was invented at the Brown Boveri Research Center, Baden, Switzerland, in 1983. For years a better scheme for multiplexing was sought. Standard twisted nematic (TN) LCDs with a 90 degrees twisted structure of the molecules have a contrast vs. voltage characteristic unfavorable for passive-matrix addressing as there is no distinct threshold voltage. STN displays, with the molecules twisted from 180 to 270 degrees, have superior characteristics. Features The main advantage of STN LCDs is their more pronounced electro-optical threshold allowing for passive-matrix addressing with many more lines and columns. For the first time, a prototype STN matrix display with 540x270 pixels was made by Brown Boveri (today ABB) in 1984, which was considered a breakthrough for the industry. STN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treo 180g
The Treo 180g is a dual-band GSM smartphone made by Handspring. Released in 2002, it was the third device in the Treo family. The 180g is essentially the same as its predecessor, the Treo 180, except that it uses Palm's proprietary Graffiti handwriting recognition software. It features a Graffiti area in place of the Treo 180's miniature QWERTY keyboard and shipped with Palm OS version 3.5.2H. The 180g has a 160x160 monochrome screen, 16 MB of internal memory and a 33 MHz Dragonball CPU. Two main models were produced, the 180 with a thumb-type keyboard and the 180g which uses the Graffiti Graffiti (plural; singular ''graffiti'' or ''graffito'', the latter rarely used except in archeology) is art that is written, painted or drawn on a wall or other surface, usually without permission and within public view. Graffiti ranges from s ... handwriting recognition software, both were flip form factor. Handspring mobile phones {{electronics-stub es:Treo 180 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treo 600
Treo 600 was a smartphone developed by Handspring, and offered under the palmOne brand (later Palm, Inc.) after the merger of the two companies. Released in November 2003, it has a number of integrated features and it is possible to check the calendar while talking on the phone, dial directly from contacts list, take pictures or send emails. It includes a five-way navigation button and favorites screen allowing quick access to the phone functions. On October 24, 2004, palmOne officially unveiled the Treo 600's successor, the Treo 650. Design The Treo 600 is a rather large device by cell phone standards but compact for a PDA. The 600 is slightly wider and deeper than its predecessor and is nearly half an inch slimmer, giving it a more cell-phone like feel. The new form factor has been compared to a bar of soap. The design is definitely an example of form-follows-function, the front of the phone consists of a full QWERTY keyboard at the bottom with menu and home buttons at the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smartphone
A smartphone is a portable computer device that combines mobile telephone and computing functions into one unit. They are distinguished from feature phones by their stronger hardware capabilities and extensive mobile operating systems, which facilitate wider software, internet (including web browsing over mobile broadband), and multimedia functionality (including music, video, cameras, and gaming), alongside core phone functions such as voice calls and text messaging. Smartphones typically contain a number of metal–oxide–semiconductor (MOS) integrated circuit (IC) chips, include various sensors that can be leveraged by pre-included and third-party software (such as a magnetometer, proximity sensors, barometer, gyroscope, accelerometer and more), and support wireless communications protocols (such as Bluetooth, Wi-Fi, or satellite navigation). Early smartphones were marketed primarily towards the enterprise market, attempting to bridge the functionality of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
