Free software raid vs hardware raid software for linux

Hardware Monitor is a multi-purpose, beautiful system-monitoring applet.
The Hardware Monitor applet is an applet for the GNOME panel which tries to be a beautiful all-around solution to system monitoring. It also strives to be user-friendly and generally nice and sensible, integrating pleasantly with the rest of your GNOME desktop.
Includes different viewers, including a flame effect, allows multiple devices to be monitored in the samme applet, uses smooth updating, polished graphs, clean HIG-compliant interface.
Main features:
- A graphical view where each monitor is represented by a (time, measurement) colored curve
- A bar-plot view with a horizontal bar per monitor
- A column view with a column (time, measurement) diagram for each monitor
- A textual view which simply lists the monitors and the currently measured values
- A flame view which produces spiffy flames, the sizes of which are determined by the values of the monitored device
And the applet supports monitoring the following hardware characteristics:
- CPU usage (all CPUs, or one at the time) - niced background processes such as SETI@home are automatically ignored
- Memory usage - cache and buffers are automatically ignored
- Swap usage
- Load average
- Disk usage (or disk space free)
- Network throughput (Ethernet, wireless, modem, serial link), either incoming or outgoing or both
- Temperatures from internal sensors (e.g. system board and CPU temperatures)
- Fan speeds from internal sensors

Hardware 4 Linux project contains a set of tools to report Linux-compatible hardware to hardware4linux.info.
Enhancements:
- This release anonymizes dmidecode output, collects OS version files instead of calling osinfo, collects audio codec files, adds a README, and collects PCI modules.

Snoopy vs. the Red Baron is an open-source one/two player combat game, available for Mac OS X, Linux, BeOS, QNX and Windows.
The original Snoopy was a tiny game for the Apple Macintosh, with black and white graphics, but already almost all the levels of the new Snoopy/SDL were implemented.
Snoopy could be played by two opponents, sharing a single screen and keyboard, and although it had poor graphics and tough controls, we very much liked to play it.
While we learned programming, we constantly sought for simple, yet interesting projects. If you have ever tried to learn a new language or API, you will have recognized that the simplest way in mastering the stuff is simply reprogramming an existing application, without losing much thought on design and originality.
So my friend reprogrammed Snoopy, in Object Pascal, using SAT, the Sprite Animation Toolkit, on his Classic II. That version of Snoopy features a fully functional AI, network play, but only the first level ( weapons drop).
While he was at it, he also implemented a "missing feature", the bombs, for which there where graphics and sounds in the game, but which could not be thrown.
When I discovered SDL, I recognized that it would be ideal for the job. Running on Windows, Linux, MacOS, BeOS and many other platforms, it is my new toolkit of choice for multimedia programming. It took us several weeks to port Snoopy (besides going to school, but now the work is almost done, with only the finishing touches to be made.
I can only encourage everyone to try SDL; it is really easy and portable (if worked right).

lshw (Hardware Lister) is a small tool to provide detailed information on the hardware configuration of the machine.

Hardware lister can report exact memory configuration, firmware version, CPU version and speed, cache configuration, bus speed, mainboard configuration, etc. On DMI-capable x86 or EFI (IA-64) systems and on some PowerPC machines (PowerMac G4 is known to work).

Information can be output in plain text, XML or HTML.

It currently supports DMI (x86 and EFI only), OpenFirmware device tree (PowerPC only), PCI/AGP, ISA PnP (x86), CPUID (x86), IDE/ATA/ATAPI, PCMCIA (only tested on x86), USB and SCSI.

Hardware::iButton is a Perl module that allows to talk to DalSemi iButtons via a DS2480 serial widget.

SYNOPSIS

use Hardware::iButton::Connection;
$c = new Hardware::iButton::Connection "/dev/ttyS0";
@b = $c->scan();
foreach $b (@b) {
print "family: ",$b->family(), "serial number: ", $b->serial(),"n";
print "id: ",$b->id(),"n"; # id = family . serial . crc
print "reg0: ",$b->readreg(0),"n";
}

This module talks to iButtons via the "active" serial interface (anything using the DS2480, including the DS1411k and the DS 9097U). It builds up a list of devices available, lets you read and write their registers, etc.

The connection object is an Hardware::iButton::Connection. The main user-visible purpose of it is to provide a list of Hardware::iButton::Device objects. These can be subclassed once their family codes are known to provide specialized methods unique to the capabilities of that device. Those devices will then be Hardware::iButton::Device::DS1920, etc.

iButtons and solder-mount Touch Memory devices are each identified with a unique 64-bit number. This is broken up into 8 bits of a "family code", which specifies the part number (and consequently the capabilities), then 48 bits of device ID (which Dallas insures is globally unique), then 8 bits of CRC. When you pass these IDs to and from this package, use hex strings like "0123456789ab".

Hardware::iButton::Device is a Perl object to represent iButtons.

SYNOPSIS

use Hardware::iButton::Connection;
$c = new Hardware::iButton::Connection "/dev/ttyS0";
@b = $c->scan();
foreach $b (@b) {
print "id: ", $b->id(), ", reg0: ",$b->readreg(0),"n";
}

This module talks to iButtons via the "active" serial interface (anything using the DS2480, including the DS1411k and the DS 9097U). It builds up a list of devices available, lets you read and write their registers, etc.

The connection object is an Hardware::iButton::Connection. The main user-visible purpose of it is to provide a list of Hardware::iButton::Device objects. These can be subclassed once their family codes are known to provide specialized methods unique to the capabilities of that device. Those devices will then be Hardware::iButton::Device::DS1920, etc.

Hardware::Vhdl::Lexer is a Perl module that can split VHDL code into lexical tokens.

SYNOPSIS

use Hardware::Vhdl::Lexer;

# Open the file to get the VHDL code from
my $fh;
open $fh, new({ linesource => $fh });

# Dump all the tokens
my ($token, $type);
while( (($token, $type) = $lexer->get_next_token) && defined $token) {
print "# type = $type token=$tokenn";
}

Hardware::Vhdl::Lexer splits VHDL code into lexical tokens. To use it, you need to first create a lexer object, passing in something which will supply chunks of VHDL code to the lexer. Repeated calls to the get_next_token method of the lexer will then return VHDL tokens (in scalar context) or a token type code and the token (in list context). get_next_token returns undef when there are no more tokens to be read.

NB: in this documentation I refer to "lines" of VHDL code and "line" sources etc., but in fact the chunks of code dont have to be broken up at line-ends - they can be broken anywhere that isnt in the middle of a token. New-line characters just happen to be a simple and safe way to split up a file. You dont even have to split up the VHDL at all, you can pass in the whole thing as the first and only "line".