bids are invited for annual maintenance service - desktops, laptops and peripherals - desktop pc; hcl , annual maintenance service - desktops, laptops and peripherals - desktop pc; hp , 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 - desktop pc; other , annual maintenance service - desktops, laptops and peripherals - desktop pc; dell , annual maintenance service - desktops, laptops and peripherals - all in one pc; hp , annual maintenance service - desktops, laptops and peripherals - all in one pc; acer , annual maintenance service - desktops, laptops and peripherals - all in one pc; dell , annual maintenance service - desktops, laptops and peripherals - laptop; hp , annual maintenance service - desktops, laptops and peripherals - laptop; dell , annual maintenance service - desktops, laptops and peripherals - laptop; lenovo , annual maintenance service - desktops, laptops and peripherals - laptop; asus , annual maintenance service - desktops, laptops and peripherals - laptop; sony , annual maintenance service - desktops, laptops and peripherals - printer ( ink tank , mono & colour , mid range ) ; canon , annual maintenance service - desktops, laptops and peripherals - printer ( ink tank , mono & colour , mid range ) ; hp , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; brother , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; canon , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; lexmak , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; hp , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; toshiba , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; canon , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; brother , 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 ) ; sharp , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; xerox , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; epson , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; ricoh , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; toshiba , annual maintenance service - desktops, laptops and peripherals - printer ( ink jet , mono and colour, lower range ) ; epson , annual maintenance service - desktops, laptops and peripherals - printer ( ink jet , mono and colour, lower range ) ; hp , annual maintenance service - desktops, laptops and peripherals - printer ( ink jet , mono and colour, lower range ) ; brother , annual maintenance service - desktops, laptops and peripherals - printer ( ink jet , mono and colour, lower range ) ; canon , annual maintenance service - desktops, laptops and peripherals - dot matrix printer mid range speed; epson , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , separate drum and tonner ) ; epson , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , separate drum and tonner ) ; canon , annual maintenance service - desktops, laptops and peripherals - ups ( offline 750-800 va ) ; other , annual maintenance service - desktops, laptops and peripherals - ups ( offline 750-800 va ) ; numeric , annual maintenance service - desktops, laptops and peripherals - ups ( offline 1 kva ) ; apc , annual maintenance service - desktops, laptops and peripherals - ups ( offline 500-550 va ) ; microtek , annual maintenance service - desktops, laptops and peripherals - ups ( offline 750-800 va ) ; intex , annual maintenance service - desktops, laptops and peripherals - scanner; hp , annual maintenance service - desktops, laptops and peripherals - scanner; canon , annual maintenance service - desktops, laptops and peripherals - lan switch; other