Linux Memory Management

["Asim Ansari" <aansari i2cinc com>]

Hello All,
 
I need explaination of the following Linux terms (in red), if someone can
tell me the URL having details all about it
 
Thanks in Advance.
 
Asim
 
                       total:                used:           free:
shared:     buffers:          cached:
Mem:              1050611712      46870528     1003741184     0
3641344         25792512

Swap:             4194848768      0                  4194848768
MemTotal:       1025988 kB
MemFree:        980216 kB
MemShared:    0 kB
Buffers:           3556 kB
Cached:          25188 kB
SwapCached:  0 kB
Active:            30148 kB
ActiveAnon:     5552 kB
ActiveCache:   24596 kB
Inact_dirty:      2856 kB
Inact_laundry:  1056 kB
Inact_clean:     0 kB
Inact_target:    6812 kB
HighTotal:       129488 kB
HighFree:        94560 kB
LowTotal:        896500 kB
LowFree:        885656 kB
SwapTotal:     4096532 kB
SwapFree:     4096532 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     4096 kB