Installing device drivers 135 316 in addition to

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Installing Device Drivers 1:35-3:16 In addition to system resources, the device needs to be able to communicate with the OS, and vice versa. This is done by using special programs called device drivers. Device drivers are special programs that are designed to create a communication channel between the OS and a specific hardware device. Drivers are usually packaged with hardware on a CD. They can also be downloaded from the manufacturer's website. In addition, operating systems contain a set of default drivers that can be used to communicate with a lot of hardware devices. However, because there are so many types of hardware devices and manufacturers, it would be impossible for an OS to support drivers for every device. Now, there are a few things that you need to know about installing device drivers. The first is that only members of the administrator group can install drivers, so when installing drivers, make sure you have administrator access. The second thing you should be aware of is the fact that drivers are both hardware-specific and OS-specific, so when installing a device driver, make sure it's made for the proper OS version and hardware device. Drivers also use what's called a digital signature to verify that the driver package is compatible with the operating system, and that the program comes from a reputable source. This process is known as driver signing. If the driver does not have appropriate digital signature, the OS will warn you before installing it. While unsigned drivers can be installed, their stability, compatibility, and security assurance can't be confirmed. The last thing you should know about drivers is that they need to be updated. Manufacturers are constantly finding bugs, vulnerabilities, or better ways to communicate with the device. Because of this, it's important to always keep your drivers up to date with the latest version. Hot Swappable Devices 3:17-3:48
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Some devices that are installed in systems are known as hot-swappable devices. These types of devices can be connected and disconnected from a computer without having the power off the system. Devices that are hot-swappable include portable storage devices, external displays, USB devices, and even some SATA devices. One thing to keep in mind when disconnecting a hot-swappable device is that it's important to use the safely remove hardware feature. This feature stops processes from accessing the device so it can be removed without damaging the storage device. Summary 3:49-4:04 And that's it for this lesson. In this lesson, we looked at the various aspects of installing a device. We looked at device compatibility, the characteristics of a plug and play device, legacy devices, and installing drivers. We also talked about hot-swappable devices, and the safely remove hardware feature.
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