Difference between NT and Windows2k

are you talkin about the server or workstation versions. active directory is one of the biggies. you might want to see complete list at technet at support.microsoft.com
cat5 can run at 100mb cat6 can run at gigabit

I am talking about Windows server, i would be right to assume that AD only happened on a Win2k environment and above?

main difference is Active Directory which is a big change in domain structure and administration from NT. Another is Domain Controllers. Gone are PDC BDC domain controllers when you use active directory intergrated DNS. All DCs are peers [though one has the a global catalog]. Cat5 Cat6 ethernet cables? heres a link to a pretty good article on the difference between cables. http://www.quality-buys.com/ethernet-cables.html

CAT5, CAT5e, and CAT6 UTP Solid Cable Specifications Comparison

Category 5
Category 5e
Category 6

Frequency
100 MHz
100 MHz
250 MHz

Attenuation (Min. at 100 MHz)
22 dB
22 dB
19.8 dB

Characteristic Impedance
100 ohms ? 15%
100 ohms ? 15%
100 ohms ? 15%

NEXT (Min. at 100 MHz)
32.3 dB
35.3 dB
44.3 dB

PS-NEXT (Min. at 100 MHz)
no specification
32.3 dB
42.3 dB

ELFEXT (Min. at 100 MHz)
no specification
23.8 dB
27.8 dB

PS-ELFEXT (Min. at 100 MHz)
no specification
20.8 dB
24.8 dB

Return Loss (Min. at 100 MHz)
16.0 dB
20.1 dB
20.1 dB

Delay Skew (Max. per 100 m)
no specification
45 ns
45 ns

Windows 2000 implements AD, NT doesn't. 2000 also has a better memory management (We used to have NT Servers running Lotus Domino which we had to reboot every week because the memory handles got filled, whereas w2k servers only had to be rebooted every 2nd week!). NT won't run on as much hardware as 2k does (More Drivers available). NT is OLD. 2k supports USB and is somewhat plug & play.

Windows 2000 supports:
a) Plug'n'Play
b) DirectX 7 or later
c) Active Directory, Group Policy
d) USB, Firewire
e) Better multimedia and graphics support
f) IIS 5 included
g) Improved backup with scheduling and removable storage using libraries
h) Larger hard disk and memory support
i) NTFS, FAT32, FAT and EFS support

Windows XP includes most of 2000 features plus:
a) System Restore
b) Improved user interface
c) Improved security
d) Faster bootup and more stable
e) Compatibility with older software
f) Wireless support included
g) Improved multimedia support

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