Arduino Mega with Ethernet & SD Card

I want to acquire 12 analog channels , store the data in SD Card and transmit over LAN.
I intend to use Arduino Mega with ethernet shield
Please inform

  1. When ethernet shield is used, how many analog channels(out of 16) can be used
  2. Can ethernet and SD work together
  3. Does use of ethernet shield affects analog values.
  1. When ethernet shield is used, how many analog channels(out of 16) can be used

Which ethernet shield ?

  1. Can ethernet and SD work together

See above

  1. Does use of ethernet shield affects analog values.

No. That would be crazy

Preeti:
I want to acquire 12 analog channels , store the data in SD Card and transmit over LAN.
I intend to use Arduino Mega with ethernet shield
Please inform

  1. When ethernet shield is used, how many analog channels(out of 16) can be used
  2. Can ethernet and SD work together
  3. Does use of ethernet shield affects analog values.
  1. Ethernet and SD use the SPI bus and a couple of digitals, so I'm sure you have all the analogue pins available
  2. Most Ethernet shields have an SD card built-in, they would be an obvious choice, and the answer is yes.
  3. No way involved.