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Packt Publishing

    consent71цитирапреди 6 месеца
    Task, Action, TaskFactory, Parallel, and TaskScheduler classes.
    Natalia Mirochnikцитирапреди 2 години
    massive update on indexes is more expensive than rebuilding them
    Ingridцитирапреди 2 години
    The following hardware is recommended for maximum enjoyment:

    The Raspberry Pi computer (Model A or B)
    SD card (4 GB minimum)
    Powered USB hub (projects verified with Belkin F5U234V1)
    PC/laptop running Windows, Linux, or Mac OS X with an internal or external SD card reader
    USB microphone
    USB webcam (projects verified with Logitech C110)
    USB Wi-Fi adapter (projects verified with TP-Link TL-WN822N)
    USB GPS receiver (projects verified with Columbus V-800)
    Lithium polymer battery pack (projects verified with DigiPower JS-Flip)
    Android smartphone (projects verified with HTC Desire)
    Ingridцитирапреди 2 години
    It all started when a chap named Eben Upton (now an employee at Broadcom) got together with his colleagues at the University of Cambridge's computer laboratory, to discuss how they could bring back the kind of simple programming and experimentation that was widespread among kids in the 1980s on home computers such as the BBC Micro, ZX Spectrum, and Commodore 64.
    Ingridцитирапреди 2 години
    At the heart of the Pi is the Broadcom BCM2835 System-on-a-Chip—imagine all the common hardware components of a PC baked into a small chip. The CPU is called ARM1176JZF-S, runs at 700 MHz and belongs to the ARM11 family of the ARMv6 architecture. For graphics, the Pi sports a Broadcom VideoCore IV GPU, which is quite powerful for such a tiny device and capable of full HD video playback. The following figure (taken from http://www.raspberrypi.org/faqs) shows the Raspberry Pi model:
    Ingridцитирапреди 2 години
    At the edge of the board we find the General Purpose Input/Output (GPIO) pins, which, as the name implies, can be used for any kind of general tinkering and to interface with other pieces of hardware
    Ingridцитирапреди 2 години
    RCA video

    This jack is for composite video output, which we can use to connect the Pi to one of those old television sets using an RCA connector cable
    Ingridцитирапреди 2 години
    To get sound out of the Pi, we can either get it through the HDMI cable connected to a monitor, or from this 3.5 mm analog audio jack using headphones or desktop speakers
    Ingridцитирапреди 2 години
    Five status LEDs are used to tell us what the Pi is up to at the moment. They are as follows
    Ingridцитирапреди 2 години
    The green light on top labeled OK (on the older Pi) or ACT (on the newer Pi) will blink when the Pi is accessing data from the SD card
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