***************************************************************************************************
* *
* I S O / O S I R E F E R E N C E M O D E L *
* *
***************************************************************************************************
LAYER
+-----------------+ Application Protocol +-----------------+
7 | Application | <------------------------------------------------> | Application |
+-----------------+ +-----------------+
| |
+-----------------+ Presentation Protocol +-----------------+
6 | Presentation | <------------------------------------------------> | Presentation |
+-----------------+ +-----------------+
| |
+-----------------+ Session Protocol +-----------------+
5 | Session | <------------------------------------------------> | Session |
+-----------------+ +-----------------+
| |
+-----------------+ Transport Protocol +-----------------+
4 | Transport | <------------------------------------------------> | Transport |
+-----------------+ +-----------------+
| .--------------------------------------. |
+-----------------+ | +-------------+ +-------------+ | +-----------------+
3 | Network | <---+-> | Network |<-->| Network | <-+---> | Network |
+-----------------+ | +-------------+ +-------------+ | +-----------------+
| | | | | |
+-----------------+ | +-------------+ +-------------+ | +-----------------+
2 | Data Link | <---+-> | Data Link |<-->| Data Link | <-+---> | Data Link |
+-----------------+ | +-------------+ +-------------+ | +-----------------+
| | | | | |
+-----------------+ | +-------------+ +-------------+ | +-----------------+
1 | Physical | <---+-> | Physical |<-->| Physical | <-+---> | Physical |
+-----------------+ | +-------------+ +-------------+ | +-----------------+
`--------------------------------------´
Communication Subnet Boundry
ASCII/editAn ASCII Graphics Editor for Mac OS X
+----------------------------------+
. | |/
. | JUMP TABLE |/
. | |/
. +----------------------------------+/
. | "Application Parameters" |/
. +----------------------------------+/
+----------------------------+ | pointer to QuickDraw globals |/ ---.
| |/ A5 --> +----------------------------------+/ |
| |/ | |/ |
A5 --> | G L O B A L S |/ | appGlobalVar1 |/ |
| |/ | appGlobalVar2 |/ |
| |/ | . |/ |
+----------------------------+/ | . |/ |
| | |/. | . |/ |
| V STACK |/ | appGlobalVarN |/ |
| grows down |/ . | |/ |
| |/ +----------------------------------+/ |
| |/ . | thePort |/ |
ApplLimit --> +----------------------------+/ +----------------------------------+/ <--´
| |/ . | |/
| |/ +------------ ------------+/
| |/ . |888888888888 QD 888888888888|/
| |/ +------------ ------------+/
| ^ HEAP |/ . |:::::::::::: Patterns ::::::::::::|/
| | grows up |/ +------------ ------------+/
| | |/ . |//////////////////////////////////|/
| | |/ +----------------------------------+/
| | |/ . | |/
| | |/ | arrow |/
ApplZone --> +----------------------------+/ . | |/
////////////////////////////// +----------------------------------+/
. | screenBits |/
+----------------------------------+/
. | randSeed |/
+----------------------------------+/
////////////////////////////////////
graphic from TechNote #35
================================================================================
M A C I N T O S H L C
--------------------------------------------------------------------------------
Introduced: 10/15/1990 Discontinued: 3/23/1992
LOGIC BOARD | PORTS
Processor: 68020, 16 MHz | USB: -
PMMU: none | ADB: 1
FPU: none | Video: DB-15
Data Path: 16, 16 | Floppy: none
| SCSI: DB-25
MEMORY | Geoports: -
Logic Board: 2 MB | Ethernet: -
RAM Slots: 2, 30-pin SIMM | FireWire: -
Min/Max RAM: 2/10 MB |
================================================================================
================================================================================
P O W E R M A C I N T O S H 7 2 0 0 / 9 0
--------------------------------------------------------------------------------
Introduced: May 1995 Discontinued: February 1997
LOGIC BOARD | PORTS
Processor: Power PC 601 | USB: -
FPU: integrated | ADB: 1
Data Path: 64 bit | Serial: 2
ROM: 4 MB | Video: DB-15
| SCSI: DB-25
MEMORY | Ethernet: AAUI-15, 10Base-T
Logic Board: - | FireWire: -
RAM Slots: 4 | Audio Out: stereo 16 bit
Max RAM: 512 MB | Audio In: stereo 16 bit
================================================================================