For an overview of integrating system components, see system integration. Similar to how a microcontroller integrates a microprocessor with peripheral circuits and memory, an SoC can be seen as integrating a microcontroller with even more advanced peripherals. An SoC will typically integrate a CPU, graphics and memory interfaces, hard-disk and USB connectivity, random-access and read-only memories and secondary storage and/or their controllers on a single circuit die, whereas a motherboard would connect these modules as discrete components or expansion cards.Īn SoC integrates a microcontroller, microprocessor or perhaps several processor cores with peripherals like a GPU, Wi-Fi and cellular network radio modems, and/or one or more coprocessors. Whereas a motherboard houses and connects detachable or replaceable components, SoCs integrate all of these components into a single integrated circuit.
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SoCs are in contrast to the common traditional motherboard-based PC architecture, which separates components based on function and connects them through a central interfacing circuit board. Additionally, SoCs may use separate wireless modems. Higher-performance SoCs are often paired with dedicated and physically separate memory and secondary storage (almost always LPDDR and eUFS or eMMC, respectively) chips, that may be layered on top of the SoC in what's known as a package on package (PoP) configuration, or be placed close to the SoC.
It may contain digital, analog, mixed-signal, and often radio frequency signal processing functions (otherwise it is considered only an application processor). These components almost always include a central processing unit (CPU), memory, input/output ports and secondary storage, often alongside other components such as radio modems and a graphics processing unit (GPU) – all on a single substrate or microchip.
This SoC does not contain any kind of data storage, as is common for a microprocessor SoC.Ī system on a chip ( SoC / ˌ ɛ s ˌ oʊ ˈ s iː/ es-oh- SEE or / s ɒ k/ sock ) is an integrated circuit (also known as a "chip") that integrates all or most components of a computer or other electronic system. To make sure you can always view the custom 404 error page on a website, make sure the “Show friendly HTTP error messages” option is disabled by going to Tools, Internet Options, Advanced.Īccording to the Room 404 website, the error message is named after the room number where the original database for the Web was hosted at CERN, the European research lab where Tim Berners-Lee developed the Web in the late 80’s.The Raspberry Pi uses a system on a chip as an almost fully contained microcomputer. Internet Explorer 4.x and higher may substitute its own default error message page for the one created by the website’s designer if that option is enabled. For example, the FCIT website has the following custom 404 error page that provides links to its most frequently requested publications. Some websites have a personalized 404 page that may provide links to the main sections of the website or other help. In that case, your best bet is to enter the URL for the home page of the site (for FCIT that would be ) and then use the search function to look for a page matching your request. This often happens when you are accessing the web page using an outdated bookmark. If you still cannot access the resource you are looking for, it is possible that it has been renamed or moved, another common reason for this error. If you get a 404 error when accessing a website, first check to make sure that you have not mistyped the URL in the address bar of your web browser. The most likely cause of this error is a mistyped URL. A 404 error is returned by a web server (the machine where a website is hosted) when it cannot find the page you have requested.