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OpenHarmony
OpenAtom OpenHarmony, or abbreviated as OpenHarmony (OHOS), is an open-source version of HarmonyOS donated by Huawei to the OpenAtom Foundation. Similar to HarmonyOS, the open-source operating system is designed with a layered architecture, which consists of four layers from the bottom to the top, i.e., the kernel layer, system service layer, framework layer, and application layer. OpenHarmony supports various devices running a mini system such as printers, speakers, smartwatches and any other smart device with memory as small as 128 KB, or running a standard system with memory greater than 128 MB. The system contains the basic capabilities of HarmonyOS. History The first version of OpenHarmony was launched by the OpenAtom Foundation on September 10, 2019 after receiving a donation of the open-source code from Huawei, with support for devices with RAM volumes ranging from 128 KB to 128 MB. The OpenHarmony 2.0 (Canary version) was launched in June 2021, supporting a variety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HarmonyOS
HarmonyOS (HMOS) () is a distributed operating system developed by Huawei to collaborate and interconnect with multiple smart devices on the Internet of Things (IoT) ecosystem. In its current multi-kernel design, the operating system selects suitable kernels from the abstraction layer for devices with diverse resources. For IoT devices, the system is known to be based on LiteOS kernel; while for smartphones and tablets, it is based on a Linux kernel layer with AOSP compatibility libraries to support legacy APK apps, in addition to native HarmonyOS HAP apps via the Ark Compiler. The system includes a communication base DSoftBus for integrating physically separate devices into a virtual Super Device, allowing one device to control others and sharing data among devices with distributed communication capabilities. It supports several forms of apps, including the apps that can be installed from AppGallery on smartphones and tablets, installation-free Quick apps and lightweig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenAtom Foundation
OpenAtom Foundation (), a non-profit independent legal entity registered with the Ministry of Civil Affairs, is the first foundation for the open-source software in China. It was established in June 2020 and initiated jointly by Alibaba, Baidu, Huawei, Inspur, Qihoo 360, Tencent, China Merchants Bank and other companies for operation and marketing services of open source projects. Projects As of December 2022, the foundation hosts open source projects including xupercore, OpenHarmony, openEuler, TecentOS Tiny, AliOS Things, OpenBlock, PIKA and hapjs. Collaboration On September 28, 2021, the OpenAtom Foundation and the Eclipse Foundation announced their intention to form a partnership to collaborate on OpenHarmony. On October 26 in the same year, both partners launched Oniro operation system, a compatible implementation of OpenHarmony based on open source and aimed to be transparent, vendor-neutral, and independent system for the global market with the founding members inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LiteOS
Huawei LiteOS was a lightweight real-time operating system (RTOS) developed by Huawei. It is an open source, POSIX compliant operating system for Internet of things (IoT) devices, released under a three-clause BSD license. Microcontrollers of different architectures such as ARM (M0/3/4/7, A7/17/53, ARM9/11), x86, and RISC-V are supported by the project. Huawei LiteOS is part of Huawei's '1+8+N' Internet of Things solution, and has been featured in a number of open source development kits and industry offerings. Smartwatches by Huawei and its former Honor brand run LiteOS. LiteOS has since been incorporated into the IoT-oriented HarmonyOS with open source OpenHarmony. History On 20 May 2015, at the Huawei Network Conference, Huawei proposed the '1+2+1' Internet of Things solution and release the IoT operating system named Huawei LiteOS. Key features *Lightweight, small kernel; <10 |
ARM Cortex-A
The ARM Cortex-A is a group of 32-bit and 64-bit RISC ARM processor cores licensed by Arm Holdings. The cores are intended for application use. The group consists of 32-bit only cores: ARM Cortex-A5, ARM Cortex-A7, ARM Cortex-A8, ARM Cortex-A9, ARM Cortex-A12, ARM Cortex-A15, ARM Cortex-A17 MPCore, and ARM Cortex-A32, 32/64-bit mixed operation cores: ARM Cortex-A35, ARM Cortex-A53, ARM Cortex-A55, ARM Cortex-A57, ARM Cortex-A72, ARM Cortex-A73, ARM Cortex-A75, ARM Cortex-A76, ARM Cortex-A77, ARM Cortex-A78, ARM Cortex-A710, and ARM Cortex-A510 Refresh, and 64-bit only cores: ARM Cortex-A34, ARM Cortex-A65, ARM Cortex-A510 (2021), and ARM Cortex-A715. The 32-bit ARM Cortex-A cores, except for the Cortex-A32, implement the ARMv7-A profile of the ARMv7 architecture. The main distinguishing feature of the ARMv7-A profile, compared to the other two profiles, the ARMv7-R profile implemented by the ARM Cortex-R cores and the ARMv7-M profile implemented by most of the ARM Cort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARM Cortex-M
The ARM Cortex-M is a group of 32-bit RISC ARM processor cores licensed by Arm Holdings. These cores are optimized for low-cost and energy-efficient integrated circuits, which have been embedded in tens of billions of consumer devices. Though they are most often the main component of microcontroller chips, sometimes they are embedded inside other types of chips too. The Cortex-M family consists of Cortex-M0, Cortex-M0+, Cortex-M1, Cortex-M3, Cortex-M4, Cortex-M7, Cortex-M23, Cortex-M33, Cortex-M35P, Cortex-M55. The Cortex-M4 / M7 / M33 / M35P / M55 cores have an FPU silicon option, and when included in the silicon these cores are sometimes known as "Cortex-Mx with FPU" or "Cortex-MxF", where 'x' is the core variant. Overview The ARM Cortex-M family are ARM microprocessor cores which are designed for use in microcontrollers, ASICs, ASSPs, FPGAs, and SoCs. Cortex-M cores are commonly used as dedicated microcontroller chips, but also are "hidden" inside of SoC chip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IP Camera
An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via an IP network. They are commonly used for surveillance, but, unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, only a local area network. Most IP cameras are webcams, but the term ''IP camera'' or netcam usually applies only to those that can be directly accessed over a network connection. Some IP cameras require support of a central network video recorder (NVR) to handle the recording, video and alarm management. Others are able to operate in a decentralized manner with no NVR needed, as the camera is able to record directly to any local or remote storage media. The first IP Camera was invented by Axis Communications in 1996. History The first centralized IP camera, the ''AXIS Neteye 200'', was released in 1996 by Axis Communications. Although the product was advertised to be accessible from anywhere with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Router (computing)
A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions between networks and on the global Internet. Data sent through a network, such as a web page or email, is in the form of data packets. A packet is typically forwarded from one router to another router through the networks that constitute an internetwork (e.g. the Internet) until it reaches its destination node. A router is connected to two or more data lines from different IP networks. When a data packet comes in on one of the lines, the router reads the network address information in the packet header to determine the ultimate destination. Then, using information in its routing table or routing policy, it directs the packet to the next network on its journey. The most familiar type of IP routers are home and small office routers that simply forward IP packets between the home computers and the Internet. More sophisticated routers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Source
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized software development model that encourages open collaboration. A main principle of open-source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public. The open-source movement in software began as a response to the limitations of proprietary code. The model is used for projects such as in open-source appropriate technology, and open-source drug discovery. Open source promotes universal access via an open-source or free license to a product's design or blueprint, and universal redistribution of that design or blueprint. Before the phrase ''open source'' became widely adopted, developers and producers have used a variety of other terms. ''Open source'' gained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphics Processing Unit
A graphics processing unit (GPU) is a specialized electronic circuit designed to manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles. Modern GPUs are efficient at manipulating computer graphics and image processing. Their parallel structure makes them more efficient than general-purpose central processing units (CPUs) for algorithms that process large blocks of data in parallel. In a personal computer, a GPU can be present on a video card or embedded on the motherboard. In some CPUs, they are embedded on the CPU die. In the 1970s, the term "GPU" originally stood for ''graphics processor unit'' and described a programmable processing unit independently working from the CPU and responsible for graphics manipulation and output. Later, in 1994, Sony used the term (now standing for ''graphics processing unit'' ... [...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] |
Gitee
Gitee () is an online forge that allows software version control using Git and is intended primarily for the hosting of open source software. It was launched by Shenzhen-based OSChina in 2013. Gitee claims to have more than 10 million repositories and 5 million users. Gitee was chosen by the Ministry of Industry and Information Technology of the Chinese government to make an "independent, open-source code hosting platform for China." In May 18, 2022, Gitee announced all code will be manually reviewed before public availability. Gitee did not specify a reason for the change, though there was widespread speculation it was ordered by the Chinese government amid increasing online censorship in China Censorship in the People's Republic of China (PRC) is implemented or mandated by the PRC's ruling party, the Chinese Communist Party (CCP). It is one of strictest censorship regimes in the world. The government censors content for mainly polit .... References 2013 softwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
