Virtual Machine - Compare Systems

This comparison is courtesy Wikipedia, where they compare basic information about platform virtual machine (VM) packages.

Name	Creator	Host CPU	Guest CPU	Host OS(s)	Guest OS(s)	License
Bochs	Kevin Lawton	any	x86, AMD64	Windows, Windows Mobile, Linux, IRIX, AIX, FreeBSD, OpenBSD, BeOS, Mac OS X	DOS, Windows, xBSD, Linux	LGPL
Containers	Sun Microsystems	x86, x86-64, SPARC (portable: not tied to hardware)	(Same as host)	Solaris 10	Solaris (8, 9 or 10), Linux (BrandZ)	CDDL
Cooperative Linux	Dan Aloni helped by other developers (1)	x86[1]	(Same as parent)	Windows 2000, XP, 2003, Vista[1]	Linux	GPL version 2
Denali	University of Washington	x86	x86	Denali	Ilwaco, NetBSD	?
DOSBox	Peter Veenstra and Sjoerd with community help	any	x86	Linux, Windows, Mac OS Classic, Mac OS X, BeOS, FreeBSD, OpenBSD, Solaris, QNX, IRIX, MorphOS, AmigaOS	Internally emulated DOS shell. Classic PC booter games and unofficially, Windows 1.0 to 3.11	GPL
DOSEMU	Community Project	x86, AMD64	x86	Linux	DOS	GPL version 2
FreeVPS	PSoft	x86, AMD64	compatible	Linux	Various Linux distributions	GPL version 2
GXemul	Anders Gavare	any	ARM, MIPS, M88K, PowerPC, SuperH	Unix-like	NetBSD, OpenBSD, Linux, Ultrix, Sprite	BSD
Hercules	Jay Maynard	any	z/Architecture	Unix-like	Linux on zSeries, z/OS, z/VM, z/VSE, OS/360, DOS/360, DOS/VS, MVS, VM/370, TSS/370.	QPL
Hyper-V	Microsoft	x64 + hardware-assisted virtualization (Intel VT or AMD-V)	x64,x86	Windows 2008 w/Hyper-V Role	Supported Drivers for Windows 2000, Windows 2003, Windows 2008, Windows XP, Windows Vista, Linux (SUSE 10 Released, More Announced))	Proprietary (free of charge with Windows Server 2008)
iCore Virtual Accounts	iCore Software	x86	x86	Windows XP	Windows XP	Proprietary
Integrity Virtual Machines	Hewlett-Packard	IA-64	IA-64	HP-UX	HP-UX, Windows, Linux (OpenVMS announced)	Proprietary
JPC (Virtual Machine)	Oxford University	Any running the Java Virtual Machine	x86	Java Virtual Machine	DOS	GPL version 2
KVM	Qumranet [1]	Intel/AMD processor with X86 virtualization,IA64,s390,PowerPC	same as platform	Linux	Linux, Windows, FreeBSD, Solaris	GPL version 2
LinuxOnLinux	Gelato@UNSW	Itanium	compatible	Linux	Linux	GPL
Linux- VServer	Community Project	x86, AMD64, IA-64, Alpha, PowerPC/64, PA-RISC/64, SPARC/64, ARM, S/390, SH/66, MIPS	compatible	Linux	Various Linux distributions	GPL version 2
Logical Domains	Sun Microsystems	UltraSPARC T1, UltraSPARC T2	compatible	Solaris 10	Solaris, Linux, and FreeBSD	?
LynxSecure	LynuxWorks	x86, Intel VT-x, Intel VT-d	x86	no host OS	LynxOS, Linux, and Windows	Proprietary
Mac-on-Linux	Mac On Linux	PowerPC	PowerPC	Linux	Mac OS X, Mac OS 7.5.2 to 9.2.2, Linux	GPL
Mac-on-Mac	Sebastian Gregorzyk	PowerPC	PowerPC	Mac OS X, up to Tiger excluded	Mac OS X, Mac OS 7.5.2 to 9.2.2, Linux	GPL
OKL4	Open Kernel Labs	x86, ARM, MIPS	as host	none (bare metal)	Linux, eCos, "other RTOSes"	BSD
OpenVZ	Community project, supported by SWsoft	Intel x86, AMD64, IA-64, PowerPC64, SPARC/64	Same as host	Linux	Various Linux distributions	GPL
Oracle VM	Oracle Corporation	Intel x86, x86-64, Intel VT-x	Intel x86, x86-64, Intel VT-x	none (bare metal install)	Microsoft Windows, Oracle Enterprise Linux, Red Hat Enterprise Linux	Free, Commercial
OVPsim	OVP [2]	Intel x86	OR1K, MIPS32 (and public API which enables users to write their own processor models)	Microsoft Windows	MIPS Malta (and public API which enables users to write their own peripheral and system models)	Apache 2.0
Padded Cell for x86	Green Hills Software	x86, Intel VT-x	x86	INTEGRITY Real-time OS	Windows, Linux, Solaris	Proprietary
Padded Cell for PowerPC	Green Hills Software	PowerPC	PowerPC	INTEGRITY Real-time OS	Linux	Proprietary
Palacios VMM	The V3Vee Project	AMD-V	x86	OS independent (currently GeekOS, Kitten)	Linux	BSD
Parallels Desktop for Mac	Parallels, Inc.	Intel x86, Intel VT-x	Intel x86	Mac OS X (Intel)	Windows, Linux, FreeBSD, OS/2, eComStation, MS-DOS, Solaris	Proprietary
Parallels Workstation	Parallels, Inc.	x86, Intel VT-x	x86	Windows, Linux	Windows, Linux, FreeBSD, OS/2, eComStation, MS-DOS, Solaris	Proprietary
PearPC	Sebastian Biallas	x86, AMD64, PowerPC	PowerPC	Windows, Linux, Mac OS X, FreeBSD, NetBSD	Mac OS X, Darwin, Linux	GPL
PowerVM	IBM	POWER4, POWER5, POWER6, PowerPC 970	POWER4, POWER5, POWER6, PowerPC 970	hardware / firmware, no host OS	Linux-PPC, AIX, i5/OS, IBM i	Proprietary
Proxmox Virtual Environment	ProxMox	x86-64	x86, x86-64	Debian Etch w/ProxMox Role	Same as KVM; Same as OpenVZ	GPL v2
QEMU	Fabrice Bellard helped by other developers	x86, AMD64, IA-64, PowerPC, Alpha, SPARC 32 and 64, ARM, S/390, M68k	x86, AMD64, ARM, SPARC 32 and 64, PowerPC, MIPS	Windows, Linux, Mac OS X, Solaris, FreeBSD, OpenBSD, BeOS	Changes regularly [3]	GPL/LGPL
QEMU w/ kqemu module	Fabrice Bellard	Intel x86, AMD64	Same as host	Linux, FreeBSD, OpenBSD, Solaris, Windows	Changes regularly [4]	GPL/LGPL
QEMU w/ qvm86 module	Paul Brook	x86	x86	Linux, NetBSD, Windows	Changes regularly	GPL
QuickTransit	Transitive Corp.	AMD64, x86, IA-64, POWER	MIPS, PowerPC, SPARC, x86	Linux, Mac OS X, Solaris	Linux, Mac OS X, Irix, Solaris	Proprietary
RTS Hypervisor	Real-Time Systems	Intel and AMD x86	x86	none: bare metal installation	Windows XP, XP-Embedded, Linux, VxWorks, Windows CE, ETS, OS-9 and proprietary OS	Proprietary
SimNow	AMD	AMD64	AMD64	Linux (64bit), Windows (64bit)	Linux, Windows (32bit and 64bit)	AMD proprietary
SIMH	Bob Supnik / The Computer History Simulation Project	Alpha, ARM, HPPA, x86, ia64, x86-64, M68K, MIPS, MIPSel, POWER, s390, SPARC	Data General Nova, Eclipse; Digital Equipment Corporation PDP-1, PDP-4, PDP-7, PDP-8, PDP-9, PDP-10, PDP-11, PDP-15, VAX; GRI Corporation GRI-909, IBM 1401, 1620, 1130, 7090/7094, System 3; Interdata (Perkin-Elmer) 16b and 32b systems; Hewlett-Packard 2114, 2115, 2116, 2100, 21MX; Honeywell H316/H516; MITS Altair 8800, with both 8080 and Z80; Royal-Mcbee LGP-30, LGP-21; Scientific Data Systems SDS 940	Windows, BSD, Linux, Solaris, VMS	Depends on target machine, Includes NetBSD/VAX, OpenBSD/VAX, VAX/VMS, UNIX v6, UNIX v7, TOPS-10, TOPS-20, ITS	Unique, BSD-like license
Simics	Virtutech	x86, x86-64, SPARC v9	Alpha, ARM, IA-64, MIPS32, MIPS64, MSP430, PPC32, PPC64, POWER, SPARC v8, SPARC v9, x86, x86-64, TI TMS320C64xx.	Windows, Linux, Solaris	Depends on target machine, VxWorks, OSE, QNX, Linux, Solaris, Windows, FreeBSD, RTEMS, TinyOS, and many others have been run.	Proprietary
Sun xVM Server	Sun Microsystems	x86-64, SPARC	(Same as host)	none (bare metal with Solaris as special guest providing backend drivers to guests)	Windows XP & 2003 Server (x86-64 only), Linux, Solaris	GPL version 3
SVISTA 2004	Serenity Systems International	x86	x86	Windows, OS/2, Linux	Windows, Linux, OS/2, BSD	Proprietary
TRANGO	TRANGO Virtual Processors, Grenoble, France	ARM, XScale, MIPS, PowerPC	Paravirtualized ARM, MIPS, PowerPC	none: bare metal execution, Linux or Windows as dev. hosts	Linux, eCos, µC/OS-II, WindowsCE, Nucleus, VxWorks	Proprietary
User Mode Linux	Jeff Dike helped by other developers	x86, x86-64, PowerPC	(Same as parent)	Linux	Linux	GPL version 2
View-OS	Renzo Davoli helped by other developers [5]	x86, PowerPC, AMD64 (in progress)	(Same as parent)	Linux 2.6+	Linux executables	GPL version 2
VDSmanager	ISPsystem LLC	x86	(Same as host)	FreeBSD	FreeBSD	Proprietary
Sun xVM VirtualBox	Sun Microsystems	x86, x86-64	x86, (x86-64 only on VirtualBox 2 with hardware virtualization)	Windows, Linux, Mac OS X (Intel), Solaris, eComStation	DOS, Windows, Linux, OS/2, FreeBSD, Solaris	GPL version 2; full version with extra enterprise features is proprietary (free of charge for personal and educational use and evaluation)
Virtual Iron Virtual Iron 3.1	Virtual Iron Software, Inc.	x86 VT-x, AMD64 AMD-V	x86, AMD64	none: bare metal execution	Windows, Linux	Complete product carries a proprietary license [6]; a few components are GPL version 2 [7]
Virtual PC 2007	Microsoft	x86, x86-64	x86	Windows Vista (Business, Enterprise, Ultimate), XP Pro, XP Tablet PC Edition	DOS, Windows, OS/2, Linux(Suse, Xubuntu), OpenSolaris(Belenix)	Proprietary (free of charge from Jul 2006)
Virtual PC 7 for Mac	Microsoft	PowerPC	x86	Mac OS X	Windows, OS/2, Linux	Proprietary
VirtualLogix VLX	VirtualLogix	ARM, TI DSP C6000, Intel x86, Intel VT-x and Intel VT-d, PowerPC	Same as parent	none: bare metal installation	Linux, Windows XP, C5, VxWorks, Nucleus, DSP/BIOS and proprietary OS	Proprietary
Virtual Server 2005 R2	Microsoft	Intel x86, AMD64	Intel x86	Windows 2003, XP	Windows NT, 2000, 2003, Linux (Red Hat and SUSE)	Proprietary (Free)
Virtuozzo	SWsoft, now Parallels, Inc.	x86, IA-64, AMD64	x86, IA-64, AMD64	Linux, Windows	Linux, Windows	Proprietary
VMware ESX Server	VMware	x86-64[citation needed]	x86-64	none (bare metal install)	Windows, Linux, Netware, Solaris, FreeBSD, ...	Proprietary
VMware ESXi Server	VMware	x86, x86-64	x86, x86-64	none (bare metal install) (embedded)	Windows, Linux, Netware, Solaris, FreeBSD, ...	Proprietary - (Free)
VMware Fusion	VMware	x86, Intel VT-x	x86, AMD64	Mac OS X (Intel)	Windows, Linux, Netware, Solaris, others	Proprietary
VMware Server	VMware	x86, AMD64	x86, AMD64	Windows, Linux	DOS, Windows, Linux, FreeBSD, Netware, Solaris, Virtual appliances	Proprietary (Free)
VMware Workstation 6.0	VMware	x86, AMD64	x86, AMD64	Windows, Linux	DOS, Windows, Linux, FreeBSD, Netware, Solaris, Darwin, Virtual appliances	Proprietary
VMware Player 2.0	VMware	x86, AMD64	x86, AMD64	Windows, Linux	DOS, Windows, Linux, FreeBSD, Netware, Solaris, Darwin, Virtual appliances	Proprietary (Free)
Wind River hypervisor	Wind River	x86, PPC	(Same as host)	bare metal	Linux, VxWorks, bare metal virtual board	Proprietary
Wind River VxWorks MILS Platform	Wind River	PPC	(Same as host)	bare metal	VxWorks, bare metal virtual board	Proprietary
Xen	Citrix Systems	x86, AMD64, (PowerPC and IA-64 ports in progress)	(Same as host)	NetBSD, Linux, Solaris	FreeBSD, NetBSD, Linux, Solaris, Windows XP & 2003 Server (needs vers. 3.0 and an Intel VT (Vanderpool) or AMD-V (Pacifica)-capable CPU), Plan 9	GPL
z/VM	IBM	z/Architecture	z/Architecture (z/VM does not run on predecessor mainframes)	None or itself, single or multiple levels/versions deep, e.g. VM/ESA running inside z/VM 4.4 inside z/VM 5.2 inside z/VM 5.1.	Linux on zSeries, z/OS, z/VSE, z/TPF, z/VM, VM/CMS, MUSIC/SP, OpenSolaris for System z, and predecessors	Proprietary, one-time charge plus maintenance/support
z LPARs	IBM	z/Architecture	z/Architecture	Intrinsic feature of System z mainframes	Linux on zSeries, z/OS, z/VSE, z/TPF, z/VM, VM/CMS, MUSIC/SP, and predecessors	Intrinsic feature of System z mainframes
Name	Creator	Host CPU	Guest CPU	Host OS(s)	Guest OS(s)	License

[edit] More details

Name	Guest OS SMP available?	Runs arbitrary OS?	Drivers for supported guest OS available?	Method of operation	Typical use	Guest OS speed relative to Host OS	Commercial support available?	Needs administrative rights?
Bochs	Yes, up to 8-way	Yes	?	Emulation	Hobbyist, Developer	Slow	?	(network support needs packet capture/TUN which requires admin rights to be installed)
Containers	Yes, over 100-way	No	N/A	Operating system-level virtualization	Business, Development, Enterprise Server Consolidation, Hosting, Service separation, Security, Isolation	Native speed	Yes
Cooperative Linux	No[1]	No	some are supported	Porting	used as a separate machine for a server or with X11 networking	Native[8]	?	Always. User-mode console can be attached to running instances, though.[1]
Denali	No	No	?	Paravirtualization and Porting	Research	Slow	?
DOSBox	No	No	Yes	Emulation using Dynamic Translation or interpretation.	execution of DOS applications, especially games	Slow (10% native), much slower on non-x86 systems.	?
DOSEMU	No	Yes	Yes	Hardware virtualization	Legacy application support	Native[9]	?
FreeVPS	Yes	No	n/a	Operating system-level virtualization	Hosting, Service separation, Security	Native[10]	?
GXemul	No	No	N/A	Emulation	Hobbyist, Developer	Slow	?
iCore Virtual Accounts	Yes	No	Compatible	Operating system-level virtualization	Safe Home Computing	Native	Yes
Integrity Virtual Machines	Yes (8-way supported, 16-way experimental)	Yes	Unnecessary	Virtualization	Server consolidation and Security	Near native (no guest additions necessary)	Yes
Jail	Yes	No	N/A	Operating system-level virtualization	Hosting, Service separation, Security	Native[11]	?
Hyper-V	Yes	Yes	Yes	Hypervisor	All	Native. Drivers IO is non-emulated for better IO performance. However, substantial performance loss on some workload (network and disk intensive especially) is associated with all virtualization solutions.	Yes
JPC (Virtual Machine)	No	Yes	N/A	Emulation and Dynamic Translation	Research	Slow (at most 20% of native)	No
KVM	Yes	Yes	N/A	In-kernel Virtualization	?	Near native	?	Needs
LinuxOnLinux	Yes	No	Under development	Paravirtualization by Afterburning plus Type II hypervisor	researching virtual machines	Near native (within 10%)	No
Linux- VServer	Yes	No	N/A	Operating system-level virtualization	Hosting, Service separation, Security	Native[12]	?
Logical Domains	Yes	No	Yes (for supported OS such as Solaris 10)	Paravirtualization	Server consolidation, Hosting, Service separation, and Security	Near native	Yes
LynxSecure	Yes	Yes	Yes	Paravirtualization and Operating system-level virtualization	Embedded and enterprise-level workstation and servers, high-assurance security, secure domain separation (MLS, MILS, MSL), and cross-domain solutions	Native or near native performance	Yes
Mac-on-Linux	?	?	?	Virtualization		Native[13]	?
Mac-on-Mac	?	?	?	Virtualization		Native[14]	?
OKL4	?	No	Yes	Paravirtualization	embedded systems	Native[15]	?
OpenVZ	Yes	No	Compatible	Operating system-level virtualization	Virtualized Server Isolation	Native[16]	?	Needs
Oracle VM	Yes	Yes	Yes	Paravirtualization and hardware virtualization	Server consolidation and security, enterprise and business deployment	Near native	Yes
Padded Cell for x86	No	Yes	Yes	Virtualization, Lightweight Hypervisor	Developer, Business workstation, Security	Near native	?
Padded Cell for PowerPC	No	No	Yes	Paravirtualization, Lightweight Hypervisor	Developer, Business workstation, Security	Near native	?
Parallels Desktop for Mac	Yes	Yes	Yes	Virtualization, Lightweight Hypervisor	Hobbyist, Developer, Tester, Business workstation	Near native	Yes
Parallels Workstation	No	Yes	Yes	Virtualization, Lightweight Hypervisor	Hobbyist, Developer, Tester, Business workstation	Near native	Yes
PearPC	No	Yes	Yes	Emulation using Dynamic Translation	Hobbyist, Developer, Business workstation	Slow (1/15 native; 1/500 on G4)	?
PowerVM	Yes	Yes, max 10 / CPU	Yes	native or (micro lpars) hypercalls to firmware-hypervisor	any use, up to 64-way	native, POWER5 and later have no raw-iron mode	Yes
QEMU	Yes	Yes	?	Dynamic Recompilation	Hobbyist, Developer, Business workstation, Server	Slow when emulating a different architecture (i.e. powerpc on x86 or vice versa) (10% to 20% of native). Reasonably fast otherwise.	?	if TAP access is desired, other networking modes require no admin
QEMU w/ kqemu module	No	Yes	?	Virtualization	Hobbyist, Developer, Business workstation, Server	Near native [17]	?	Needs
QEMU w/ qvm86 module	No	Yes	?	Virtualization	Hobbyist, Developer, Business workstation, Server	Near native	?	Needs
QuickTransit	Yes	Yes	No	Dynamic binary translation	Various	Varies depending on host/guest processor combination	Yes
RTS Hypervisor	Yes	Yes	Yes	native, binary - direct HW access	Embedded real-time systems; Medical, Industrial, Mil-Aero	Native[18]	Yes
SimNow	Yes	Yes	Yes	Code caching, Virtualization	Developer, Server	Slow (10% of native)	?
SIMH	No	Yes	No	Emulation	Hobbyist, Legacy application support, Historical preservation	Slower than native	?
Simics	Yes	Yes	Yes, but most of time unmodified is the point	Full-system simulation	Early software development, embedded software development, advanced debug, computer architecture research	depends on target nature	Yes
Sun xVM Server	Yes	Yes	Yes	Paravirtualization and Porting or Hardware Virtualization	Enterprise servers	Up to near native[19] speed substantial performance loss on some workload (network and disk intensive especially)	Yes
SVISTA 2004	No	?	?	?	Hobbyist, Developer, Business workstation	?	?
TRANGO	Yes	Yes[20]	Yes	Paravirtualization and Porting or Hardware Virtualization	Mob. phone, STB, routers, etc.	Native[21]	?
User Mode Linux	???	No	special guest kernel+modules required	Porting	used as a separate machine for a server or with X11 networking	near Native speed (Runs slow as all calls are proxied)	?	for networking
View-OS	Yes	No	N/A	Partial Virtualization through syscall trapping	security, isolation, testing, mobility	Near native (better with ptrace kernel patch[22])	?
VDSmanager	Yes	No	N/A	Operating system-level virtualization	Hosting, Service separation, Security, Isolation	Native speed	Yes
Sun xVM VirtualBox	No	Yes	Yes	Virtualization	Business workstation, Enterprise Server Consolidation, Business Continuity, Hobbyist, Developer	Near native	Yes (with commercial license)	Needs (See Support forums)
Virtual Iron Virtual Iron 3.1	Yes (up to 8 way)	Yes	Yes	Native Virtualization	Enterprise Server Consolidation, Business Continuity, Dev/Test	Near Native	Yes
Virtual PC 2007	No	Yes	Yes	Virtualization (guest calls trapping where supported)	Hobbyist, Developer, Business workstation	Near native with Virtual Machine additions	?
Virtual PC 7 for Mac	No	Yes	Yes	Dynamic Recompilation (guest calls trapping where supported)	Hobbyist, Developer, Business workstation	Slow	?
VirtualLogix VLX	Yes	Yes	Yes	Paravirtualization and Porting or Hardware Virtualization	Embedded real-time systems: Mobile phone, STB, Softswitch, etc	Near Native[23]	Yes
Virtual Server 2005 R2	No	Yes	Yes	Virtualization (guest calls trapping where supported)	Server, Server Farm	Near native with Virtual Machine additions	?
Virtuozzo	Yes	No	Compatible	Operating system-level virtualization	Server Consolidation, Business Continuity, Disaster Recover, Service Providers	Native speed	Yes
VMware ESX Server 3.0	Yes (Add-on) (up to 4 way)	Yes	Yes	Virtualization	Enterprise Server Consolidation, Business Continuity, Dev/Test	Up to near native	Yes	Needs
VMware ESX Server 2.5.3	Yes (Add-on) (2 way)	Yes	Yes	Virtualization	Enterprise Server Consolidation, Business Continuity, Dev/Test	Up to near native	Yes	Needs
VMware Fusion	Yes	Yes	Yes	Virtualization	Hobbyist, Developer, Tester, Business workstation	Near native	Yes	Needs
VMware Server	Yes (2-way)	Yes	Yes	Virtualization	Server/Desktop Consolidation, Dev/Test	Up to near native, substantial performance loss on some workload (network and disk intensive especially)[citation needed]	Yes	Needs
VMware Workstation 6.0	Yes (2-way)	Yes	Yes	Paravirtualization (VMI) and Virtualization	Technical Professional, Advanced Dev/Test, Trainer	Up to near native	Yes	Needs
VMware Player 2.0	Yes (2-way)	Yes	Yes	Virtualization	Technical Professional, Advanced Dev/Test, Trainer, End User (Prebuild Machines)	Up to near native, substantial performance loss on some workload (network and disk intensive especially)[citation needed]	Yes	Needs
Wind River hypervisor	No	Yes	Yes	Paravirtualization, hardware assisted virtualization	Embedded, safety critical, secure	Native	Yes	Not applicable
Wind River VxWorks MILS Platform	No	Yes	Yes	Paravirtualization, hardware assisted virtualization	Embedded, safety-critical, secure	Native	Yes	Not applicable
Xen	Yes	Yes	Not required with the exception of the networking drivers where a NAT is required. A modified guest kernel or special hardware level abstraction is required for guest OSs.	Paravirtualization and Porting or Hardware Virtualization	?	Up to near native[24] speed substantial performance loss on some workload (network and disk intensive especially)	Yes
z/VM	Yes, both real and virtual (guest perceives more CPUs than installed), incl. dynamic CPU provisioning and reassignment	Yes	Yes, but not required	Virtualization (among first systems to provide hardware assists)	Enterprise servers	Near Native[25]	Yes
z LPARs	Yes, both real and virtual (guest perceives more CPUs than installed), incl. dynamic CPU provisioning and reassignment; up to 64 real cores	Yes	Yes, but not required	Microcode and hardware hypervisor	Enterprise servers	Native: System z machines always run with at least one LPAR	Yes
Name	Guest OS SMP available?	Runs arbitrary OS?	Supported guest OS drivers?	Method of operation	Typical use	Speed relative to Host OS	Commercial support