Transfer the photos from the mobile to my comouter which software i have to download

Hello there...that's right you can get a usb data cable, blue tooth ,or memory card reader to transfer your pictures to your
computer....
you can directly print the picture as some of the printers come with card readers built in which is very convinient
consider visiting a mobile accessory shop you will have all the options there
my best pick will be memory card reader if you already have a printer...it is very cheap...and can read multiple cards...so in
future if you change your mobile you will not have any problem
like with usb cable (different for different phone)
blue tooth and getting a new printer is a costly affair...blue tooth often have connectivity and software issues
go for memory card reader ...cheap ,reliable ,fast and best of all

Hope this helps
Cheers