To find settings of your computer go:
Win NT: Start - Programs - Administrative tools (Common) – Windows
NT Diagnostic
Win 95: Start - Settings - Control Panel - System - Device Manager - Computer - Computer Properties
Example:
IRQ0 System timer DMA0
IRQ1 Keyboard DMA1- free
IRQ2 System I/O DMA2 - Floppy
IRQ3 Com 2/4 Serial DMA3 - free
IRQ4 Com 1/3 Serial DMA4 - Controller
IRQ5 LPT2 or MIDI DMA5 - free
IRQ6 Floppy disk DMA6 - free
IRQ7 LPT1
IRQ8 Real time clock
IRQ9 Free or Sound Card
IRQ10 Free
IRQ11 Free
IRQ12 Free – Mouse PS2
IRQ13 Math coprocessor
IRQ14 Hard Disk
IRQ15 Free or secondary HD controller
LAN adapter settings – IRQ 5, 3,9,15; Port 280h, 300h, 320h, 360h
COM1 – 3F8, COM2 – 2F8, COM3 – 3E8, COM4 – 2E8,
1.Physical – passive hubs, repeaters, cables. – Ethernet(802.3), Token Bus(802.4), Token Ring(802.5),SLIP
2. Data Link – bridges, active hub, NIC. – CRC, frame type, routing, segmentation
LLC – Logical Link Control 802.2, ODI, NDIS, LocalTalk,
MAC – Media Access Control – communicate with NIC – 12 digit hex. physical address.
3.Network – routers, gateways – routing decisions (more then two devices), translate logical address into physical, priority, and rout, network layer error control, packet sequences control. – IP, IPX,
4. Transport – ensures error free delivery, send acknowledgement that message received – TCP, SPX, NetBEUI
5.Session – name lookup for programs and security, data synchronization and checkpoint – Named Pipes, Net Bios
6.Presentation – network redirector – translates data between computer and network, protocol conversion, compression, encryption, character set and graphic commands interpretation. - TDI
7.Application – support applications (database, e-mail, file transfer.) – X.400,X.500,SMTP,FTP,SNMP
SLIP – Physical Layer
PPP – Data link (error control, security, dynamic IP addressing, support multiple protocols)
X.25 – Network layer – packet switching for WAN
Frame relay – Data link + Physical – error correction, no er. recovery faster => X.25
X.400 – Application layer – Messaging protocol / MHS messaging handling services Novell
X.500 – Application layer – Directory protocol
Ethernet – IEEE 802.3
Token Ring – IEEE 802.5
Network Topology
Bus – Ethernet 10Base2
Star – 10BaseT
ATM – Asynchronous Transfer Mode
ATM-25 – 25Mbps
T3 – 44.736
OC – 1 SONET – 51Mbps
OC – 3 SONET – 155Mbps
OC – 12 SONET – 622Mbps
OC – 48 SONET – 2.4Gbps
Raid level 0 – Stripping – increase performance – no ft.
Raid level 1 – Mirroring
Raid level 5 – Stripping with Parity at least 3 partitions the same size, each on different drive