HP T5300 - Thin Client Manuale utente

Embedded Operating Systems Selection Guide

Common features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Advantages of embedded operating systems and thin client hardware . . . . . . . . . . . . . . . . . . .3

Windows XP Embedded (XPe) operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Windows CE operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Embedded Linux operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating system feature set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Remote management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Terminal service clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Internet browser applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Multimedia applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Terminal emulation applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Print services applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Shell applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Text viewer applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Security applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Special features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Information Technology personnel frequently must determine which thin client embedded operating system

best meets their requirements for devices and applications. This paper helps you with that process by pro-

viding feature comparisons between the three HP thin client operating systems:

•Microsoft Windows XP Embedded (XPe)

•Microsoft Windows CE

•Embedded Linux

Common features

The following table provides an overview of the features common to HP thin clients based on operating

system using the following legend:

◆◆◆ Feature is fully functional and operates the same as the desktop environment.

◆◆ Feature is partially functional and does not operate the same as the desktop environment.

◆Feature is barely functional and requires a highly skilled administrator to enable it.

Common Features

Features XPe CE Linux

Accessibility (508) ◆◆ ◆◆ ◆◆

Automatic logon ◆◆◆ ◆◆◆ ◆◆◆

Browser ◆◆◆ ◆◆ ◆◆◆

Citrix ◆◆◆ ◆◆◆ ◆◆◆

Connection manager ◆◆◆ ◆◆◆

Firewall ◆◆◆

International keyboard ◆◆◆ ◆◆◆ ◆◆◆

Kiosk ◆ ◆◆◆ ◆◆◆

Media player ◆◆◆ ◆◆

Networking ◆◆◆ ◆◆◆ ◆◆◆

Operating system restores ◆◆◆ ◆◆◆ ◆◆◆

Persistent connections ◆ ◆◆◆ ◆◆◆

RDP ◆◆◆ ◆◆◆ ◆◆◆

Remote management ◆◆◆ ◆◆◆ ◆◆◆

Setup wizard ◆◆◆

Single button logon ◆ ◆◆◆ ◆◆◆

SNMP ◆◆◆ ◆◆◆

SNTP Client ◆◆◆ ◆◆◆ ◆◆◆

Advantages of embedded operating systems and

thin client hardware

The advantages of the embedded operating systems thin clients use include:

•Lower administration costs - Like managed desktops, client management is performed remotely on a

centralized server. However, thin clients offer the additional advantages of a smaller footprint (offer-

ing less surface area for attacks and patching) and image lifecycle (because applications are stored

on the server or PC blade, the thin client operating system does not require upgrading).

•Security - You can configure local operating systems for resilience against user changes and harden

against viruses and worms.

•Lower hardware costs - Customers benefit from lower hardware maintenance costs because the

devices are less prone to failure from spinning media, power system fans, and system heat. As a

result, the products may have a longer life cycle than personal computers.

•Data theft/data loss - With server-based computing, local operating systems are software platforms

for access devices. Data is not normally written to or stored on the thin client.

Windows XP Embedded (XPe) operating system

The Windows XPe operating system is based on binaries used in the Windows XP Professional operating

system. The Win32 programming model provides security, performance, multimedia, internet browsing,

and extensive hardware device support features in a familiar user interface. The following table lists

strengths and weaknesses of the Windows XPe operating system:

Terminal emulation ◆◆◆ ◆◆◆ ◆

Graphical/text printing ◆◆◆

Touch screen monitor ◆◆◆ ◆◆◆ ◆◆◆

Wireless ◆◆◆ ◆◆ ◆

Windows XPe Operating System

Strengths Weaknesses

Large peripheral device support Large memory requirement

Win32-based applications support Operating system license cost

User interface similar to Windows XP

Common Features

Features XPe CE Linux

Windows CE operating system

Windows CE is a real-time operating system specifically designed by Microsoft for the embedded device

marketplace. This operating system features a real-time kernel, networking, multimedia, and Internet

browsing using a custom user interface. Since the operating system was designed to be embedded, the

kernel will fit in a smaller footprint than the XPe operating system. The following table lists strengths and

weaknesses of the Windows CE operating system:

Multimedia capable

Remote management

Microsoft Internet Explorer

Image is locked down

Windows Firewall support

.NET Messenger

Support for Symantec Embedded Security (formerly

known as Sygate Security Agent)

Windows CE Operating System

Strengths Weaknesses

Kiosk mode - locked down Limited peripheral device support

Small memory requirement Limited printer support

Multimedia capable Limited Win32-based applications support

Remote management Web sites mis-identify Internet Explorer as mobile Internet Explorer

Import/exporting registry settings

Microsoft Internet Explorer

Connection administrator application

Windows XPe Operating System

Strengths Weaknesses

Embedded Linux operating system

The HP Linux thin client image is a real-time operating system created by Hewlett-Packard using open-

source Linux components. The operating system contains a Linux kernel, command shells, networking, mul-

timedia, Internet browsing, and a custom user interface. This operating system provides the additional

capacity of adding or removing other Linux utilities not part of the standard installation. The following

table lists strengths and weaknesses of the Embedded Linux operating system:

Embedded Linux Operating System

Strengths Weaknesses

Small memory requirements Limited peripheral device support

Firefox browser Limited printer support

Remote management No Win32-based applications support

Can lock down or customize image User interface not identical to Microsoft products

Operating system license cost

Connection administrator application

Kiosk mode - locked down

XDM (X-Terminal)

Customizable with open source software and components

on select platforms

Open source

Multimedia capable

Operating system feature set

The following sections list the features that each thin client operating system supports.

Remote management

Remote management applications help you manage your thin client environment. The following remote

management tools are available:

•Altiris delivers a deployment solution that allows you to capture, customize, and deploy thin client

images within an entire network.

•The FTP upgrade tool provides the ability to upgrade your images from an FTP site.

•The factory image restore tool allows you to restore a thin client system to the factory image from a

USB flash drive or a CD ROM.

•The export/import registry settings feature allows you to modify a CE image and then transfer the

image settings to a similar system.

Limiting factors:

•Altiris Deployment Server cannot install a custom image with Rdeploy using a USB flash drive without

executing a post configuration job in all three operating systems.

•FTP upgrade using the Auto System Update option on CE 5.0 supports only three file extensions

- ARP, IBR, and CAB.

•FTP upgrade using the Use values from DHCP option fails to complete correctly unless the values

for the file server and file root path setting remain at the factory default values.

•FTP upgrade will not correctly execute back to back .ARP file transfers.

•You can only successfully import/export registry settings between identical thin client systems.

Operating Systems

Remote Management XPe CE Linux

Altiris ✓✓✓

FTP upgrade ✓✓

Export registry settings ✓✓✓

Import registry settings ✓✓✓

Reset registry settings ✓✓

Factory image restore ✓✓✓

Auto system upgrade ✓

Terminal service clients

Terminal service clients provide remote display and input capabilities over network connections to and

from a terminal server. Citrix ICA client supports TCP/IP, IPX, SPX, and NETBIOS. Remote Desktop Proto-

col (RDP) is Microsoft’s terminal services protocol that governs input/output between a Windows terminal

client and Windows Terminal Server. Rdesktop is an open source terminal services client capable of

natively speaking Remote Desktop Protocol (RDP).

Limiting factors:

•The Linux operating system is unable to establish a dial-up ICA connection and displays the Invalid

serial number error message.

•Mapping a CD-ROM drive within a Linux ICA connection does not work.

Internet browser applications

Internet browser applications allow you to view documents on the Web.

Limiting factors:

•Windows CE 4.22 Internet Explorer will not display email attachments that are greater than

10 megabytes.

•Some Web sites mis-identify Internet Explorer as a mobile device browser and do not correctly dis-

play their contents.

Operating Systems

Terminal Service Clients XPe CE Linux

Citrix ICA Client ✓✓✓

RDP ✓✓✓

Operating Systems

Internet Browsers XPe CE Linux

Internet Explorer 6.0 ✓✓

Firefox ✓

PDF Viewer ✓1✓

Sun Java ✓✓

Uninstall Browser ✓✓

1A fee-based PDF Viewer is available for CE. For more information, contact your account representative.

Multimedia applications

Multimedia applications use video, music, and the Internet for education or entertainment.

Limiting factors:

•The Windows CE 4.22 and 5.0 media player does not contain Dolby 5.1 codec support.

•Microsoft Windows XPe Service Pack 2 may drop video frames when using Symantec Embedded Secu-

rity (formerly known as Sygate Security Agent).

Terminal emulation applications

Terminal emulation applications enable thin clients to simulate a specific type of computer terminal so that

you can access a mainframe computer or bulletin board service.

Limiting factors:

•For Windows CE 4.22 and 5.0 to display the Euro currency sign in TEC when using foreign lan-

guage keyboards, you must select the ISO Latin-9 character set.

•VNC Linux viewer may not refresh Internet Explorer content when connected to a Windows operating

system when you scroll up and down.

Operating Systems

Multimedia XPe CE Linux

Media player ✓✓ 2

Midi ✓

Messenger ✓✓

Shock Wave Flash ✓

2HP does not provide a media player with its Linux systems. You can download and install various commercial

open source media players.

Operating Systems

Terminal Emulation XPe CE Linux

TEC ✓✓ 3

VNC ✓✓

XDM ✓

3HP does not provide a commercial terminal emulation package with its Linux systems. Commercial and open-

source emulation packages are available that work on HP Linux thin clients.

•VNC Linux viewer may terminate the connections when you switch to full screen mode.

•VNC on Windows CE 4.22 and 5.0 is unable to display video clips using the host’s media player.

Print services applications

Print services provide the ability to publish documents in hard copy format.

Limiting factors:

•Windows CE 4.22 and 5.0 Jetcet does not support simultaneous USB printing from two different

applications. This is a limitation of usbprint.dll.

•The Windows XPe default printer driver supports only text printing.

•None of the operating systems support printing documents larger than the printer spool size.

Shell applications

Shell applications allow you to customize your user interface’s look and feel.

Limiting factors:

•Windows CE 5.0 Kiosk Mode - To prevent an empty desktop from displaying when you hide the

entire user interface, you cannot toggle the connections back to the No Auto setting.

•Windows CE 5.0 Connection Manager - Changing the connection name results in the connection

dropping from the user’s connection list.

Operating Systems

Print Services XPe CE Linux

Jetcet ✓

MS Printer Service ✓

Operating Systems

Shells XPe CE Linux

Windows Explorer ✓✓

Kiosk ✓✓

Connection Manager ✓✓

Citrix Connection Manager ✓

Setup Wizard ✓

XFce ✓

•Windows CE 4.22 Connection Manager - The hot key combination Ctrl+Alt+ Up or Down

Arrow will not maximize a minimized RDP connection window.

•Windows CE 5.0 Connection Manager - Selecting the Hide Connection task bar option also

selects the Disable local Windows key combinations option.

Text viewer applications

You can use text or document viewers to display .txt or .pdf-formatted files on your thin clients.

Security applications

Security features help to protect your data from theft or corruption.

Limiting factor:

•Persistent connections are available only with RDP connections.

Operating Systems

Viewers XPe CE Linux

Notepad ✓1

Txtpad ✓

Adobe Acrobat Reader ✓✓✓

vi text editor ✓

Operating Systems

Security XPe CE Linux

EWF ✓

Locked-down partition ✓✓

Windows Firewall ✓

Symantec Embedded Security (formerly known as Sygate Secu-

rity Agent)

✓

Auto start connection ✓✓

Lock screen ✓✓✓

Automatic logon ✓✓✓

Single button logon ✓✓

Persistent connections ✓✓

Ping type ✓✓

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