Can someone tell me the difference between
QNX4
QNX2
QNX RTP
i am new to this
“the-carp” <the-carp@cybercomm.nl> wrote in message
news:8u1mq7$naj$1@inn.qnx.com…
Can someone tell me the difference between
QNX4
QNX2
http://schoenbrun.com/~mba/faq.htm
QNX RTP
http://qdn.qnx.com/support/docs/neutrino_qrp/sys_arch/intro.html
i am new to this
the-carp <the-carp@cybercomm.nl> wrote:
Can someone tell me the difference between
QNX2
Old. x86 16-bit protected mode or real mode only, very limitted hardware
support even in that environment, written in the 1980s. Did some really great
stuff with the 80286/80386/80486, but began to run into some problems
operating on Pentiums.
Was a micro-kernel message-passing OS with a mild Unix flavour.
QNX4
x86, originally 16-bit, now 32-bit, protected mode only, though it will still
run 16-bit programs. Does some really great stuff with 486s though recent
Pentiums.
Is a micro-kernel message-passing OS with a Unix look & feel.
QNX RTP
QNX Neutrino (a micro-kernel message-passing OS that tracks Posix and is
Multi-platform, including x86, PowerPC, Mips, ARM, and SH4) for the x86
packaged with a GUI, TCP/IP stack, development environment, browser, some
games and other toys to make a desktop environment and free for download.
(non-professional use only)
Basically, they are several different generations of OSes, as they
becomes more refined, and more powerful – while maintaining the core themes
and capabilities that we have found are important and useful.
– micro-kernel
– pre-emptive scheduling
– message-passing (blocking Send, Receive; non-blocking Reply)
– non-blocking notification
– Unix/Posix for compatibility
– fast context switch, low latencies
Hope this helps.
-David
kaj.risberg@digita.fi wrote:
How much does a QNX Development Kit cost?
Thank’s in advance,
//
Kaj Risberg
Software Engineer
Digita Oy
Helsinki
Finland
//