The SIMpad is a portable

computer A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic set ...

developed by the company Keith & Koep by order of

Siemens AG Siemens AG ( ) is a German multinational technology conglomerate. It is focused on industrial automation, building automation, rail transport and health technology. Siemens is the largest engineering company in Europe, and holds the posit ...

, with an 8.4" TFT

touchscreen A touchscreen (or touch screen) is a type of electronic visual display, display that can detect touch input from a user. It consists of both an input device (a touch panel) and an output device (a visual display). The touch panel is typically l ...

. Commonly used with wireless network cards, it was marketed as a device to browse the

World Wide Web The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyis ...

. Initially announced in January 2001 at the

Consumer Electronics Show CES (; formerly an initialism for Consumer Electronics Show) is an annual trade show organized by the Consumer Technology Association (CTA). Held in January at the Las Vegas Convention Center in Winchester, Nevada, United States, the event typi ...

There are five known model variants, all out of production: *CL4: The low-end model with 32 MB RAM and 16 MB Flash ROM without PC card slot but with DECT modem. *WP50: A variant sold by Swisscom. Same as the CL4. *T-Sinus Pad: A variant sold by

Deutsche Telekom Deutsche Telekom AG (, ; often just Telekom, DTAG or DT; stylised as ·T·) is a partially state-owned German telecommunications company headquartered in Bonn and the largest telecommunications provider in Europe by revenue. It was formed in 199 ...

. This one is the same as the CL4 but with a PC card slot. *SL4: The high end model, with 64 MB RAM and 32 MB Flash ROM. This one also has a PC card slot. *SLC: Identical to the SL4, but with the addition of a Siemens MD34 DECT modem, allowing connection to certain Siemens ISDN telephone systems. All variants contain: *An

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

StrongARM#SA-1110 SA-1110 32-bit

RISC In electronics and computer science, a reduced instruction set computer (RISC) is a computer architecture designed to simplify the individual instructions given to the computer to accomplish tasks. Compared to the instructions given to a comp ...

processor with a clock frequency of 206 MHz *An 8.4" TFT LCD with an

SVGA Super VGA (SVGA) or Extended VGA is a broad term that covers a wide range of computer display standards that extended IBM's Video Graphics Array, VGA specification. When used as shorthand for a resolution, as VGA and XGA often are, SVGA refers to ...

resolution (800×600 pixels) *4-wire analog resistive touch interface *A single 16-bit PC card slot (not included in some CL4 models designed to use the Siemens MD34 DECT module) *A standard ISO/IEC 7816 SmartCard interface *A

USB Universal Serial Bus (USB) is an industry standard, developed by USB Implementers Forum (USB-IF), for digital data transmission and power delivery between many types of electronics. It specifies the architecture, in particular the physical ...

1.1 client interface (not fully functional in production releases, but see Mullenger.org below) *An IrDA interface (V1.3, SIR) *A serial interface (proprietary Siemens "Lumberg" socket) *A 7.2 V 2800 mA·h Lithium Ion Battery (~4hr life) *A built-in mono speaker *A built-in microphone (not on CL4 models) *A headphone interface (proprietary Siemens "Lumberg" socket) All devices weigh approximately 2.2 lb (1 kg) and measure 10.35 × 7.08 × 1.10 inches (263 mm ×181 mm × 30 mm). The SIMpad was initially released with the Handheld PC 2000 ( Windows CE 3.0) operating system, while later units (mostly SL4 and SLC) were released with Windows CE.NET (Windows CE 4.0). Since the SIMpad was discontinued in 2002, all manufacturer support was also discontinued. Th
OpenSIMpad
project offers a SIMpad related Wiki where one can find information about

Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...

, Windows CE, hardware and mods.

External links

Developer's homepage
{{Siemens Tablet computers Embedded Linux Siemens