Tender For providing of annual maintenance service - desktops, laptops and peripherals - all in one pc; hp,annual maintenance service - desktops, laptops and peripherals - desktop pc; hp,annual maintenance service - desktops, laptops and peripherals - all in one pc; dell,annual maintenance service - desktops, laptops and peripherals - desktop pc; dell,annual maintenance service - desktops, laptops and peripherals - all in one pc; lenovo,annual maintenance service - desktops, laptops and peripherals - desktop pc; acer,annual maintenance service - desktops, laptops and peripherals - multifunction printer (monochrome , laser , composite cartridge, mid range); hp,annual maintenance service - desktops, laptops and peripherals - multifunction printer (monochrome , laser , composite cartridge, mid range); canon,annual maintenance service - desktops, laptops and peripherals - fax machine; brother,annual maintenance service - photocopier machine - photocopier machines( colour , laser , separate drum & tonner, lower range); hp