[$hardware1, $hardwareValue1],
[$hardware2, $hardwareValue2],
[$hardware3, $hardwareValue3],

##</code><code>##

# array
my @hardware;
$hardware[1] = 'whatever';

# hash
my %hardware;
$hardware{1} = 'whatever';

# hash of hashes
my %hardware;
$hardware{1} = { hw => 'whatever', value => 'somevalue' };

# hash of arrays
my %hardware;
$hardware{1} = [ 'whatever', 'somevalue' ];

# array of arrays
my @hardware;
$hardware[1] = [ 'whatever', 'somevalue' ];

# array of hashes
my @hardware;
$hardware[1] = { hw => 'whatever', value => 'somevalue' };