Subject: Networking Essentials

Application Telnet, FTP, SMTP

Presentation SMB (redirectors also here)

Session NetBIOS

Transport SPX, TCP, UDP (transport protocols use routing tables)

Network IP, IPX, NWLink, NetBEUI, DDP (Apple)

Data Link DLC (IBM, HP printing)

Physical

The first thing you do with your system 0, system timer

is sit at the keyboard, 1, keyboard

look at your video display, 2, video or redirected IRQ

--- COM 2 or 4 3, COM 2 or 4 or bus mouse

--- COM 1 or 3 4, COM 1 or 3

listen, 5, sound card, could also be LPT 2

insert a floppy, 6, floppy drive

print the results, 7, LTP1

check the time, 8, clock

make noises about where to go next, 9, redirected IRQ or audio

--- primary SCSI 10, remember, what's first is 0

--- secondary SCSI 11, what's second is 1

use the rodent 12, PS/2 mouse

to do some math 13, math coprocessor

--- primary disk 14

--- secondary disk 15

Also to help you with remembering IRQs, the rule for COMs is that opposites attract. That's right, even COMs (2,4) like an odd IRQ (3) and odd COMs (1,3) like an even IRQ (4).

Do you remember your math classes? Do you remember that when the author of the math textbook couldn't explain something, he'd write something like the proof is obvious or this is an exercise left for the reader. Well, the mnemonics for IRQs 14 and 15 are an exercise left for the reader.