Tender For providing of annual maintenance service - desktops, laptops and peripherals - desktop pc; dell,annual maintenance service - desktops, laptops and peripherals - desktop pc; lenovo,annual maintenance service - desktops, laptops and peripherals - desktop pc; acer,annual maintenance service - desktops, laptops and peripherals - all in one pc; hp,annual maintenance service - desktops, laptops and peripherals - multifunction printer (monochrome , laser , composite cartridge, mid range); canon,annual maintenance service - desktops, laptops and peripherals - printer (monochrome , laser , composite cartridge ); hp,annual maintenance service - desktops, laptops and peripherals - printer ( ink tank , mono & colour , high range ); hp,annual maintenance service - desktops, laptops and peripherals - multifunction printer (monochrome , laser , composite cartridge, high range); hp