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SmartQ 5
The SmartQ 5 is a budget mobile Internet device manufactured by the Chinese company Smart Devices. It was officially announced 11 February 2009. Overview The SmartQ 5 comes with a custom version of Ubuntu Linux installed which is adapted for use with a touchscreen. It uses the LXDE desktop environment. Ubuntu's main pre-installed applications are: *Midori web browser *FBReader e-book readerClawsemail client *SMPlayer multimedia player *Abiword word processor *Gnumeric spreadsheet *Transmission torrent client Sonatamusic player *Pidgin instant messenger *Evince PDF/document readerrgbPaintpainting program * GDebi package installer *PCMan File Manager It is possible to install another Linux besides the default OS. Several Linux distributions likMerand a ported Android support the SmartQ 5. Smart Devices has obtained a Windows CE 6.0 royalty, the OS has been made available on the official site. Although a license from Microsoft needs to be purchased to activate Windows CE. Specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Internet Device
A mobile Internet device (MID) is a multimedia capable mobile device providing wireless Internet access. They are designed to provide entertainment, information and location-based services for personal or business use. They allow 2-way communication and real-time sharing. They have been described as filling a niche between smartphones and tablet computers. As all the features of MID started becoming available on smartphones and tablets, the term is now mostly used to refer to both low-end as well as high-end tablets. Archos Internet tablets The form factor of mobile Internet tablets from Archos is very similar to the Lenovo image on the right. The class has included multiple operating systems: Windows CE, Windows 7 and Android. The Android tablet uses an ARM Cortex CPU and a touchscreen. Intel announced a prototype MID at the Intel Developer Forum in Spring 2007 in Beijing. A MID development kit by Sophia Systems using Intel Centrino Atom was announced in April 2008. Intel MI ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission (BitTorrent Client)
Transmission is a BitTorrent client which features a variety of user interfaces on top of a cross-platform back-end. Transmission is free software licensed under the terms of the GNU General Public License, with parts under the MIT License. Features Transmission allows users to quickly download files from multiple peers on the Internet and to upload their own files. By adding torrent files via the user interface, users can create a queue of files to be downloaded and uploaded. Within the file selection menus, users can customise their downloads at the level of individual files. Transmission also seeds, that is, it will automatically share downloaded content. Transmission allows the assigning of priorities to torrents and to files within torrents, thus potentially influencing which files download first. It supports the Magnet URI scheme and encrypted connections. It allows torrent-file creation and peer exchange compatible with Vuze and μTorrent. It includes a built-in web se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signal-to-noise Ratio
Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise. SNR, bandwidth, and channel capacity of a communication channel are connected by the Shannon–Hartley theorem. Definition Signal-to-noise ratio is defined as the ratio of the power of a signal (meaningful input) to the power of background noise (meaningless or unwanted input): : \mathrm = \frac, where is average power. Both signal and noise power must be measured at the same or equivalent points in a system, and within the same system bandwidth. Depending on whether the signal is a constant () or a random variable (), the signal-to-noise ratio for random noise becomes: : \mathrm = \frac where E refers to the expected value, i.e. in this case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SDHC
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 SanDisk, Panasonic (Matsushita) and Toshiba as an improvement over MultiMediaCards (MMCs), and has become the industry standard. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property rights associated with SD memory cards and SD host and ancillary products. The companies also formed the SD Association (SDA), a non-profit organization, in January 2000 to promote and create SD Card standards. SDA today has about 1,000 member companies. The SDA uses several trademarked logos owned and licensed by SD-3C to enforce compliance with its specifications and assure users of compatibility. History 1999–2003: Creation In 1999, SanDisk, Panasonic (Matsushita), and Toshiba agreed to develop and market the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resistive Touchscreen
In electrical engineering, a resistive touchscreen is a touch-sensitive computer display composed of two flexible sheets coated with a resistive material and separated by an air gap or microdots. Description and operation There are two different types of metallic layers. The first type is called ''matrix'', in which striped electrodes on substrates such as glass or plastic face each other. The second type is called ''analogue'' which consists of transparent electrodes without any patterning facing each other. As of 2011 analogue offered lowered production costs. When contact is made to the surface of the touchscreen, the two sheets are pressed together. On these two sheets there are horizontal and vertical lines that, when pushed together, register the precise location of the touch. Because the touchscreen senses input from contact with nearly any object (finger, stylus/pen, palm) resistive touchscreens are a type of "passive" technology. For example, during the operation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARM11
ARM11 is a group of 32-bit RISC ARM processor cores licensed by ARM Holdings. The ARM11 core family consists of ARM1136J(F)-S, ARM1156T2(F)-S, ARM1176JZ(F)-S, and ARM11MPCore. Since ARM11 cores were released from 2002 to 2005, they are no longer recommended for new IC designs, instead ARM Cortex-A and ARM Cortex-R cores are preferred. Overview The ARM11 microarchitecture (announced 29 April 2002) introduced the ARMv6 architectural additions which had been announced in October 2001. These include SIMD media instructions, multiprocessor support and a new cache architecture. The implementation included a significantly improved instruction processing pipeline, compared to previous ARM9 or ARM10 families, and is used in smartphones from Apple, Nokia, and others. The initial ARM11 core (ARM1136) was released to licensees in October 2002. The ARM11 family are currently the only ARMv6-architecture cores. There are, however, ARMv6-M cores ( Cortex-M0 and Cortex-M1), addressing mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows CE 6
Windows Embedded CE 6.0 (codenamed "''Yamazaki''") is the sixth major release of the Microsoft Windows embedded operating system targeted to enterprise-specific tools such as industrial controllers and consumer electronics devices like digital cameras. CE 6.0 features a kernel that supports 32,768 processes, up from the 32-process limit of prior versions. Each process receives 2 GB of virtual address space, up from 32 MB. Windows Embedded CE 6.0 was released on November 1, 2006, and includes partial source code. The OS currently serves as the basis for the Zune HD portable media player. Windows Mobile 6.5 is based on Windows CE 5.2. Windows Phone 7, the first major release of the Windows Phone operating system, is based on Windows Embedded CE 6.0 R3; although Windows Phone 7 is also using Windows Embedded Compact 7 features. New features * Some system components (such as filesystem, GWES (graphics, windowing, events server), device driver manager) have been moved to the kerne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android (operating System)
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008. Most versions of Android are proprietary. The core components are taken from the Android Open Source Project (AOSP), which is free and open-source software (FOSS) primarily licensed under the Apache License. When Android is installed on devices, the ability to modify the otherwise free and open-source software is usually restricted, either by not providing the corresponding source code or by preventing reinstallation through technical measures, thus rendering the installed version proprietary. Most Android devices ship with additional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux Distributions
A Linux distribution (often abbreviated as distro) is an operating system made from a software collection that includes the Linux kernel and, often, a package management system. Linux users usually obtain their operating system by downloading one of the Linux distributions, which are available for a wide variety of systems ranging from embedded devices (for example, OpenWrt) and personal computers (for example, Linux Mint) to powerful supercomputers (for example, Rocks Cluster Distribution). A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System, or, more recently, Wayland), a window manager, and a desktop environment. Most of the included software is free and open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Usually, Linux distributions optionally include some proprietary sof ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operating System
An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer from cellular phones and video game consoles to web servers and supercomputers. The dominant general-purpose personal computer operating system is Microsoft Windows with a market share of around 74.99%. macOS by Apple Inc. is in second place (14.84%), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PCMan File Manager
PCMan File Manager (PCManFM) is a file manager application, developed by Hong Jen Yee () from Taiwan, which is meant to be a replacement for GNOME Files, Dolphin (file manager), Dolphin and Thunar. PCManFM is the standard file manager in LXDE, also developed by the same author in conjunction with other developers. Since 2010, PCManFM has undergone a complete rewrite from scratch; build instructions, setup and configuration have changed in the process. Released under the GNU General Public License, PCManFM is free software. It follows the specifications given by Freedesktop.org for interoperability. Dissatisfied with GTK, GTK3, Hong Jen Yee experimented with Qt (framework), Qt in early 2013 and released the first version of a Qt-based PCManFM on . He clarified, though, that does not indicate any departure from GTK in LXDE, saying: "The GTK and Qt versions will coexist". The new PCManFM-Qt is a core component of LXQt. In 2020 the Arch Linux community ported PCManFM to GTK 3. Featu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
