The Raspberry Pi is among the fastest growing technologies in the market today. lt was developed in the United Kingdom a product of the Raspberry Pi Foundation, created to enhance the learning of basic computer science studies in learning institutions especially those in the developing countries (Raspberry Pi Foundation). Raspberry Pi can be used in robotic which led to it selling at beyond the target market. The technology comprises of a series of single-board computers that are small in size and with the fat selling rates, it became the bestselling computer made in British. Models The Raspberry Pi has a range of models that have been created to date since release in 2012 (Johnston, & Cox, 2017). The first models under the Raspberry Pi 1 family include the Raspberry B, A, B+, and A+. The Pi 2 family comprise of Raspberry B. The Raspberry Pi Zero family is made up of the Raspberry Zero and W/WH. The Raspberry Pi 3 family is made up of modifications of the previous models of A, A+ and B+ manufactured between 2016 and 2018. The latest model developed this year, 2019, is the Raspberry B model which falls under the Raspberry Pi 4 family, with a standard form factor, wireless, and has the Ethernet hub components. Hardware The board of the RPi was designed with school going children in mind which means that it is simple and easy to use. lt is made up of a processor and graphics chips among other components such as the Random-Access-Memory, a variety of interfaces, as well as connectors that guide with the external devices. Just like a standard PC, the RPi makes use of a keyboard, a display unit, and a unit power supply (Govind et al., 2016). The ordinary SD Flash memory card that is used in a digital camera is effective for use in the RPi with its configuration being similar to a hard drive in a personal computer. The following are the essential components in an RPi hardware; power supply, video cable, USB keyboard, monitor (with either DVl, HDMl, SCART, or Composite input), and an SD card having Linux Operating System. Processor The following table shows the processor used across the various generations of the RPi; RPi 2 V1.1 Broadcom BCM2836 SoC 900 MHZ 32-bit quadcore ARMCortex-A7 RPi 2 V1.2 Broadcom BCM2837 SoC 1.2 GHz 64-bit quadcore ARM Cortex-A53 RPi 3+ Broadcom BCM2837B0 SoC 1.4 GHz 64-bit quad-core ARM Cortex-A53 RPi 4 Broadcom BCM2711 SoC 1.5 GHz 64-bit quad-core ARM Cortex-A53 RPi Zero RPi W Broadcom BCM2835 SoC 1 GHz CPU Advantages of RPi · lt is quite affordable that students and those living in the third world countries can easily make a purchase of the device. · lt is small in size making it easily portable in wallets since it’s the size of a credit card. lt can also be safely hidden due to its size hence preventing the owner from encountering theft cases. · lt provides the HD video streaming capacity including other basic computer functionalities for the user. Disadvantages of RPi · lt cannot play hardcore 3D games that are of interest to teenagers. · The RPi cannot run 32-bit OS hence limiting the user on systems such as Mac OS X and some Linux varieties. Conclusion Despite being small in size, and quite affordable, the RPi provides versatility, a promise of a powerful device and meet the basic all-around needs of the users. Among the uses include programming concepts and hardware interface. RPi is effective in controlling motions and sensors in robotics such as in the detection of leakages in an oven. lf the users are aware of its processing powers and limit their commands as per the capacity level of RPi, then the technology is very effective. ~~~For this or similar assignment papers~~~
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