VirtualBox

source: vbox/trunk/doc/manual/en_US/dita/topics/emul-hardware.dita@ 104688

最後變更 在這個檔案從104688是 99797,由 vboxsync 提交於 22 月 前

Docs: bugref:10302. Merging changes from the docs team. Almost exclusively conkeyref related stuff.

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1<?xml version='1.0' encoding='UTF-8'?>
2<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
3<topic xml:lang="en-us" id="emul-hardware">
4 <title>Emulated Hardware</title>
5
6 <body>
7 <p>
8 <ph conkeyref="vbox-conkeyref-phrases/product-name"/> virtualizes nearly all hardware of the host.
9 Depending on a VM's configuration, the guest will see the
10 following virtual hardware:
11 </p>
12 <ul>
13 <li>
14 <p><b outputclass="bold">Input devices.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/>
15 can emulate a standard PS/2 keyboard and mouse. These devices
16 are supported by most guest OSes.
17 </p>
18 <p>
19 In addition, <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can provide virtual USB input
20 devices to avoid having to capture mouse and keyboard, as
21 described in <xref href="keyb_mouse_normal.dita#keyb_mouse_normal"/>.
22 </p>
23 </li>
24 <li>
25 <p><b outputclass="bold">Graphics.</b> The default
26 <ph conkeyref="vbox-conkeyref-phrases/product-name"/> graphics device for Windows guests is an SVGA
27 device. For Linux guests, the default graphics device emulates
28 a VMware SVGA graphics device. See
29 <xref href="settings-screen.dita#settings-screen"/>.
30 </p>
31 <p>
32 For legacy guest OSes, a VGA-compatible graphics device is
33 available.
34 </p>
35 </li>
36 <li>
37 <p><b outputclass="bold">Storage.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/>
38 emulates the most common types of hard disk controllers. See
39 <xref href="harddiskcontrollers.dita#harddiskcontrollers"/>. Whereas supporting
40 only one of these controllers would be enough for
41 <ph conkeyref="vbox-conkeyref-phrases/product-name"/> by itself, this multitude of storage adapters
42 is required for compatibility with other hypervisors. Windows
43 is very selective about its boot devices, and migrating VMs
44 between hypervisors is very difficult or impossible if the
45 storage controllers are different.
46 </p>
47 </li>
48 <li>
49 <p><b outputclass="bold">Networking.</b> See
50 <xref href="nichardware.dita#nichardware"/>.
51 </p>
52 </li>
53 <li>
54 <p><b outputclass="bold">USB.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/> emulates
55 these types of USB host controllers: xHCI, EHCI, and OHCI.
56 While xHCI handles all USB transfer speeds, some legacy guest
57 OSes may not support xHCI. Note that for some legacy Windows
58 guests, third party drivers must be installed for xHCI
59 support.
60 </p>
61 <p>
62 Legacy guest OSes typically support OHCI and EHCI. These two
63 controllers are needed because OHCI only handles USB low-speed
64 and full-speed devices (both USB 1.x and 2.0), while EHCI only
65 handles high-speed devices (USB 2.0 only).
66 </p>
67 <p>
68 The emulated USB controllers do not communicate directly with
69 devices on the host. Instead they communicate with a virtual
70 USB layer which abstracts the USB protocol and enables the use
71 of remote USB devices.
72 </p>
73 </li>
74 <li>
75 <p><b outputclass="bold">Audio.</b> See
76 <xref href="settings-audio.dita#settings-audio"/>.
77 </p>
78 </li>
79 </ul>
80 </body>
81
82</topic>
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