To copy iPhone Contact to computer:
Step 1: Download iPhone Contact Transfer free trial version here, then install it. You also need iTunes above 7.3 installed.
Step 2: Connect iPhone to your computer.
Step 3: Launch iPhone Contact Transfer, your contacts on iphone memory will display as shown in your iPhone screen automatically as fig 1. Click on certain name, all contact infomation will display as fig 2 shown.

Fig 1 (Click Here Enlarge)

Fig 2 (Click Here Enlarge)
Step 4 Option 1: In fig 1 situation, you can click button "Copy ALL Contacts" to copy contacts from your iPhone , then select options:
1: Choose File Type: back up to TXT file or ANTC file;
2: Choose File Path: where to store the backup file; You can change the backup path if you do not use default path.
3: Advanced Option: if you choose ANTC format in step 1, you can add a password to protect the file. Note: Only you know the password, so please do remember it.
Click OK Button to finish the Copy. See fig 3.

Fig 3 (Click Here Enlarge)
Step 4 Option 2: In fig 2 situation, click button "Copy Contact From who" to copy contact of a single person, select options:
1: Choose File Type: You can only select TXT file format in single contact transfer;
2: Choose File Path: where to store the backup file, do nothing if you choose default path;
3: Advanced Option: Disabled in single contact transfer.
Click OK Button to finish the Copy. See fig 4.

Fig 4 (Click Here Enlarge)
Tips: What is ANTS file?
Ants file format is developed for storing iPhone SMS data on PC. The ANTS file with file extension ".ants" can be opened by this iPhone SMS Transfer tool by double click or drag it to the software window, then the file display as Fig 2 above.
ANTS file format support strong-encryption password protection method, so ANTS file is safe for personal privacy if you provide a password to the file.
How to Transfer Contact Photo from iPhone to Computer?
In fig 2 above, you can click the photo of single person to save it to your computer. See fig 5.

Fig 4 (Click Here Enlarge)