If Scheme is so good why MIT drops it?
bob.martin at excite.com
Mon Jul 20 08:40:21 CEST 2009
in 121708 20090720 072858 Frank Buss <fb at frank-buss.de> wrote:
>Bob Martin wrote:
>> I think the OP means "major PC operating systems". Those with a wider
>> knowledge of the computer world would consider IBM's mainframe operating
>> systems to be deserving of the description "major".
>Maybe you are right, if you mean big machines. I know mainframes a bit and
>there are interesting concepts, like hot-swapping of CPU modules and
>mainframes are very reliable. But expensive, too. I know at least one
>client, who wants to change it to some cheap Linux boxes, like Google
>demonstrates it. If you take care (e.g. Xen virtualization for easier
>computer changing and RAID harddisks, if a downtime of some hours might be
>ok), it doesn't matter if one PC goes out of order.
>But even on IBM mainframes you can install Linux or other Unix systems in
>parallel to the usual operating systems for this machines, so except for
>special cases, like embedded systems, the most installed and used operating
>systems might be Unix-like systems and Windows. But looks like Python even
>runs on more native operating systems for mainframes.
Yes, a "platform" is really the combination of hardware architecture and operating system,
so Linux on Intel and Linux on 390 are different platforms.
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