Last edited 03/07/2006
NBTSTAT
Displays protocol statistics and current TCP/IP connections using NBT (NetBIOS
over TCP/IP).
NBTSTAT [ [-a RemoteName] [-A IP address] [-c] [-n] [-r] [-R] [-RR] [-s] [-S]
[interval] ]
-a (adapter status)
Lists the remote machine's name table given its name
-A (Adapter status)
Lists the remote machine's name table given its IP address.
-c (cache)
Lists NBT's cache of remote [machine] names and their IP addresses
-n (names)
Lists local NetBIOS names.
-r (resolved)
Lists names resolved by broadcast and via WINS
-R (Reload)
Purges and reloads the remote cache name table
-S (Sessions)
Lists sessions table with the destination IP addresses
-s (sessions)
Lists sessions table converting destination IP addresses to computer NETBIOS
names.
-RR (ReleaseRefresh) Sends
Name Release packets to WINS and then, starts Refresh
RemoteName
Remote host machine name.
IP address
Dotted decimal representation of the IP address.
interval
Redisplays selected statistics, pausing interval seconds between each display.
Press Ctrl+C to stop redisplaying statistics.
Bits & Bytes:
8 bits = 1 Byte
1,024 Bytes = 1 Kilobyte (KB)
1,024 Kilobytes (KB) = 1 Megabyte (MB or Meg)
1,048,576 (2 to the 20th power) Bytes = 1 Megabyte (MB or Meg)
1,024 Megabytes = 1 Gigabyte
1,073,741,824 Bytes = 1 Gigabyte
In computer terms, we use the uppercase versions of Kilo, Mega, Giga. Why? Simply because they are not powers of 10, but powers of 2. As such:
| 1 kilo = 1,000 (10^3), but 1 Kilo = 1,024 (2^10) | |
| 1 mega = 1,000,000 (10^6), but 1 Mega = 1,024 x 1,024 = 1,048,576 (2^20) | |
| 1 giga = 1,000,000,000 (10^9), but 1 Giga = 1,073,741,824 (2^30) |
This difference is not very important (2.4% for Kilo, 4.8% for Mega), but using the right numbers yields to much simpler and correct calculations when it comes to dealing with examples or the likes. For example, a camera that supports pictures up to 2048 x 1536; that's 3,145,728 pixels. Which is exactly 3 x 1024 x 1024! Therefore a 3 Megapixel camera.
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Criteria |
NTFS5 |
NTFS |
FAT32 |
FAT16 |
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Operating System |
Windows 2000 |
Windows NT |
Windows 98 |
DOS |
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Limitations |
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Max Volume Size |
2TB |
2TB |
2TB |
2GB |
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Max Files on Volume |
Nearly Unlimited |
Nearly Unlimited |
Nearly Unlimited |
~65000 |
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Max File Size |
Limit Only by |
Limit Only by |
4GB |
2GB |
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Max Clusters Number |
Nearly Unlimited |
Nearly Unlimited |
268435456 |
65535 |
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Max File Name Length |
Up to 255 |
Up to 255 |
Up to 255 |
Standard - 8.3 |
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File System Features |
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Unicode File Names |
Unicode Character Set |
Unicode Character Set |
System Character Set |
System Character Set |
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System Records Mirror |
MFT Mirror File |
MFT Mirror File |
Second Copy of FAT |
Second Copy of FAT |
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Boot Sector Location |
First and Last Sectors |
First and Last Sectors |
First Sector |
First Sector |
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File Attributes |
Standard and Custom |
Standard and Custom |
Standard Set |
Standard Set |
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Alternate Streams |
Yes |
Yes |
No |
No |
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Compression |
Yes |
Yes |
No |
No |
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Encryption |
Yes |
No |
No |
No |
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Object Permissions |
Yes |
Yes |
No |
No |
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Disk Quotas |
Yes |
No |
No |
No |
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Sparse Files |
Yes |
No |
No |
No |
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Reparse Points |
Yes |
No |
No |
No |
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Volume Mount Points |
Yes |
No |
No |
No |
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Overall Performance |
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Built-In Security |
Yes |
Yes |
No |
No |
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Recoverability |
Yes |
Yes |
No |
No |
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Performance |
Low on small volumes |
Low on small volumes |
High on small volumes |
Highest on small volumes |
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Disk Space Economy |
Max |
Max |
Average |
Minimal on large volumes |
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Fault Tolerance |
Max |
Max |
Minimal |
Average |
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IRQ Information:
There are 16 IRQs (15 usable) in a computer system. Here is a typical assignment of these IRQs:
IRQ 0 System- System Timer
IRQ 1 System- Keyboard
IRQ 2 System- Cascadeable PIC (programmable interrupt controller), controls IRQ 8-15
IRQ 3 System- Serial Port (COM 2 and COM4)
IRQ 4 System - Serial Port (COM 1 and COM3)
IRQ 5 Available- General Adapter Use
IRQ 6 System- Diskette Controller
IRQ 7 System- Printer 1
IRQ 8 System- CMOS Real-time clock
IRQ 9 Available- General Adapter Use
IRQ 10 Available- General Adapter Use
IRQ 11 Available- General Adapter Use
IRQ 12 System- Mouse Port
IRQ 13 System- Math Co-processor (even though this is built into the CPU, it still uses an IRQ)
IRQ 14 System- Hard Disk Controller
IRQ 15 Available- General Adapter Use
Useful Commands: Click Start, then Run, type the desired command, then click OK; for help with commands, type the command followed by a space, then type /? then click OK. e.g. - XCOPY /? Or, type HELP COMMAND, e.g. HELP XCOPY, then click OK.
Windows 9x/ME/2000:
XCOPY - Copies files and directory trees.
Windows 98 / ME:
MSCONFIG - Handy tool to use to enable / disable startup programs, do selective boots, etcetera.
SYSEDIT - Opens system files ready for editing.
REGEDIT - do not use this without first making a backup of your registry, and only use it if you know what you are doing.
WINIPCFG - Network adaptor IP configurator tool.
Windows 2000/2003/XP:
tasklist /svc
net
IPCONFIG - Network adaptor IP configurator tool.
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