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  1. George Town is the capital of the Malaysian state of Penang, encompassing Penang Island and surrounding islets. With a population of 794,313 as of the 2020 census, it is the core city of Malaysia's second-largest metropolitan area, which has a population of 2.84 million. George Town serves as the commercial centre for northern Malaysia.

  2. This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: "List of Linux distributions" – news ...

  3. en.wikipedia.org › wiki › USBUSB - Wikipedia

    An M.2 (2242) solid-state-drive ( SSD) connected into USB 3.0 adapter and connected to computer. The USB mass storage device class (MSC or UMS) standardizes connections to storage devices. At first intended for magnetic and optical drives, it has been extended to support flash drives and SD card readers.

  4. en.wikipedia.org › wiki › SCADASCADA - Wikipedia

    • Control Operations
    • Components
    • Alarm Handling
    • PLC/RTU Programming
    • Plc Commercial Integration
    • Communication Infrastructure and Methods
    • Architecture Development
    • Security
    • Uses
    • See Also

    The key attribute of a SCADA system is its ability to perform a supervisory operation over a variety of other proprietary devices. 1. Level 0 contains the field devices such as flow and temperature sensors, and final control elements, such as control valves. 2. Level 1 contains the industrialised input/output (I/O) modules, and their associated dis...

    A SCADA system usually consists of the following main elements: Supervisory computers 1. This is the core of the SCADA system, gathering data on the process and sending control commands to the field connected devices. It refers to the computer and software responsible for communicating with the field connection controllers, which are RTUs and PLCs,...

    An important part of most SCADA implementations is alarm handling. The system monitors whether certain alarm conditions are satisfied, to determine when an alarm event has occurred. Once an alarm event has been detected, one or more actions are taken (such as the activation of one or more alarm indicators, and perhaps the generation of email or tex...

    "Smart" RTUs, or standard PLCs, are capable of autonomously executing simple logic processes without involving the supervisory computer. They employ standardized control programming languages such as under, IEC 61131-3 (a suite of five programming languages including function block, ladder, structured text, sequence function charts and instruction ...

    Since about 1998, virtually all major PLC manufacturers have offered integrated HMI/SCADA systems, many of them using open and non-proprietary communications protocols. Numerous specialized third-party HMI/SCADA packages, offering built-in compatibility with most major PLCs, have also entered the market, allowing mechanical engineers, electrical en...

    SCADA systems have traditionally used combinations of radio and direct wired connections, although SONET/SDH is also frequently used for large systems such as railways and power stations. The remote management or monitoring function of a SCADA system is often referred to as telemetry. Some users want SCADA data to travel over their pre-established ...

    SCADA systems have evolved through four generations as follows: Early SCADA system computing was done by large minicomputers. Common network services did not exist at the time SCADA was developed. Thus SCADA systems were independent systems with no connectivity to other systems. The communication protocols used were strictly proprietary at that tim...

    SCADA systems that tie together decentralized facilities such as power, oil, gas pipelines, water distribution and wastewater collection systems were designed to be open, robust, and easily operated and repaired, but not necessarily secure. The move from proprietary technologies to more standardized and open solutions together with the increased nu...

    Both large and small systems can be built using the SCADA concept. These systems can range from just tens to thousands of control loops, depending on the application. Example processes include industrial, infrastructure, and facility-based processes, as described below: 1. Industrial processes include manufacturing, process control, power generatio...

  5. en.wikipedia.org › wiki › LinuxLinux - Wikipedia

    Linux (/ ˈ l ɪ n ʊ k s / LIN-uuks) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution (distro), which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project.

  6. The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to ...

  7. A "personal computer" version of Windows is considered to be a version that end-users or OEMs can install on personal computers, including desktop computers, laptops, and workstations. The first five versions of Windows– Windows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 –were all based on MS-DOS, and were aimed at both ...

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