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DETAILS OF THE NEW NETWORK COMPUTING REFERENCE PROFILE
1
The NC Reference Profile consists of a set of open standards
and guidelines, which form the basis of an NC. The initial NC Reference
Profile will be made available in July 1996, for comment and review,
and is expected to be finalized by participants in August 1996. The
proposed NC profile is expected to include:
• The following resources guidelines:
- minimum screen resolution of 640 x 480 (VGA) or equivalent
- pointing device
- text input capability
- audio output
- persistent local storage not required
• Internet Protocol—NC devices participate in an IP-based
network and will support IP as an underlying protocol. Specific hardware
attachment to the network is not specified.
• The following IP-based protocols:
- TCP—the Transmission Control Protocol creates a stream-based
network above IP. Secure connections, if supported, are provided by
the Secure Sockets Layer (SSL).
- FTP—the File Transfer Protocol allows NC-branded devices to
exchange files using the popular FTP protocol. This is required only
for those NCs, which implement either a local or distributed file system
and support file transfer.
- Telnet—telnet is a standard client/server protocol, which enables
character-based terminal emulation access to remote hosts. This is required
only for those NCs, which support a character-based console access to
remote hosts.
- NFS—Network File System supports distributed file systems for
NC devices. NCs, which do not implement a distributed file system, need
not implement this protocol.
- UDP—the User Datagram Protocol is utilized by NFS and enables
end-to-end application-specific communications.
- SNMP—Simple Network Management Protocol enables NC devices to
participate in a network-managed environment
- The following boot and configuration options:
-- DHCP—to simplify administration and installation Dynamic Host
Configuration Protocol enables an NC to boot itself over the network,
to dynamically acquire an IP address and to transmit configuration information
over the network.
-- Bootp—enables an NC to boot over the network
• The following World Wide Web standards:
- HTML—HyperText Markup Language is the publishing format for
WWW sites (including CGI).
- HTTP—HyperText Transfer Protocol allows browsers to communicate
with remote Web servers and for servers to communicate with NCs.
- Java Application Environment
-- the Java Virtual Machine and runtime environment
-- Java class libraries
• The following mail protocols:
- SMTP—Simple Mail Transfer Protocol
- IMAP4—Internet Message Access Protocol Version 4
- POP3—Post Office Protocol Version 3
• The following common multimedia formats:
- JPEG
- GIF
- WAV
- AU
• Security features supported through emerging APIs
- Optional security standards:
-- ISO 7816 (Smartcards)
-- Europay/MasterCard/Visa specifications
Additionally, the NC Reference Profile will include recommendations
for printing.
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