Serial Mouse , 9- 25- - (. 8.2). , . - RS-232C. , , RS-232, . Serial Mouse , - (IRQ4 COM1 IRQ3 COM2). , , COM1 IRQ4, , , , , . MS Mouse (Microsoft Mouse) PC Mouse (Mouse Systems Mouse) , MS/PC. 1200 /, - .
♦ MS Mouse: 1 , ( ), X , Y . , . 3D- .
♦ PC Mouse: 8 , , X , Y .
8.2. Serial Mouse
DB9 | DB25 | COM- | |
Data | 2 | 3 | RxD |
GND | 5 | 7 | GND |
+V() | 7,(4) | 4, (20) | RTS, (DTR) |
-V () | 3 | 2 | TxD |
. : , Windows 95 ( ) , PC Mouse ( , ). .
( Int 33h), . BIOS , BIOS Setup. , IRQ4 IRQ3 COM1 COM2 .
PS/2
PS/2-Mouse , PS/2. 6-pin mini-DIN (. . 8.1) , , 8242 (. . 8.1.2). PS/2-Mouse (. 8.3). PS/2 (ISA) -. PS/2 : 8242 , , , 60h ( , ) 64h D4h.
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. 8.3. PS/2-Mouse
. (stream mode) ; (remote mode) . (wrap mode), , . Mouse_OBF IRQ12, 8242.
- PS/2 ( PS/2) BIOS, ( ). ( 74h IRQ12), , . BIOS Int 15h C200-C209h.
Bus Mouse
Bus Mouse ( ) , . , ( ISA). 9- , (. 8.4), PS/2-Mouse. , , - . ISA (COM-, LPT- GAME-), Bus Mouse. Microsoft , , Bus Mouse MS-Mouse, .
. 8.4. Bus Mouse