corrigendum - supply and installation of 22 nos . , desktop computer , 12 nos . ( twelve ) laptop , 10 nos . ( ten ) printer and 23 nos . ( twenty three ) ups for office use at west bengal police housing and infrastructure development corporation limited . , araksha bhawan . , desktop computer ( make hp - 280 g4 mt i5 win 10 p 413 with n220 ) :1 . cpu : intel core i5 8500 ( 8th generation , 2 . chipset : intel chipset h series , h3703 . number of cores per processor : 64 . processor base frequency ( ghz ) : 3 and cache ( 9 mb ) 5 . memory : 4 gb ddr4 ram , 6 . hard disk drive : 1000 gb 7 . monitor : 47 cm ( 18 . 5 inch ) led digital colour monitor tco-05 certified . 8 . keyboard : latest qwerty keyboard , 9 . mouse : optical with usb interface . 10 . ports : 6 usb ports or more ( at least 2 usb with 3 . 0 ) , 1 display port/vga port , audio ports for microphone and headphone in front . , 11 . networking facility : 10/100/1000 on board integrated network port . , 12 . operating system : windows 10 professional preloaded with media and documentation and certificate of authenticity . , 13 . os certifications : windows 10 pro . os or higher certification . , 14 . microsoft office 2019 standard perpetual license , govt . edition , 4 device based in number of core/ user 1 , office suite covered in ms word , spreadsheet , presentation , file conversion , graphics . 15 . warranty : 3 years onsite . ***desktop computer model must not be under its eol ( end-of lifecycle ) . , laptop make hp 15 da1058tu ( 8th gen core i5-8265u/ 4gb / 1 tb hdd + 256 gb ssd / full hd display / windows 10 :1 . item height : 24 millimeters , 2 . item width : 38 centimeters , 3 . screen size : 15 . 6 inches , 4 . notebook display technology led , 5 . screen resolution : 1920 x 1080 , 6 . maximum display resolution : 1920x1080 , 7 . item weight : 2 . 88 kg , 8 . product dimensions : 25 . 8 x 38 x 2 . 4 cm9 . batteries : 1 lithium ion batteries required . ( included ) item model number 15 - da1058tu 10 . processor brand intel . 11 . processor type core i5 , 12 . processor speed 2 . 30 ghz , 13 . processor count 2 , 14 . ram size 4gb , 15 . memory technology ddr4 , 16 . hard disk technology serial ata , 17 . hard drive interface serial ata , 18 . audio details headphones , 19 . speaker description dual speakers , 20 . graphics coprocessor intel hd 620 , 21 . connectivity type 802 . 11b/g/n ( 1x1 ) wi-fi and bluetooth 4 . 0 combo , 22 . wireless type 802 . 11bgn23 . number of usb 2 . 0 ports 2 , 24 . number of usb 3 . 0 ports 2 , 25 . number of hdmi ports 1 , 26 . number of audio-out ports1 , 27 . wattage 41 watts , 28 . optical drive type , 29 . dvd-rw , card reader , secure digital card30 . operating system windows 10 home , 31 . average battery life ( in hours ) 4 hours , 32 . lithium battery energy content 41 watt hours , 33 . lithium battery weight 0 . 85 grams , 34 . number of lithium ion cells 4 , 35 . sales package : laptop , battery , power adaptor , carry case , user guide , 36 . warranty : 01 ( one ) year onsite . 37 . microsoft office 2019 standard perpetual license , govt . edition , 4 device based in number of core/ user 1 , office suite covered in ms word , spreadsheet , presentation , file conversion , graphics . ***laptop model must not be under its eol ( end-of lifecycle ) . , printer :make : epson , model m200 all-in-one ink tank printer :printer type - ink tank; functionality - all-in-one ( print , scan , copy ) ; printer output - black & whiteconnectivity - usb , ethernet ; display - 2-line lcd displaypages per minute - 15 pages ; ideal usage - home and small office , regular / heavy usage ( more than 300 pages per month ) page size supported - a4 , a5 , a6 , b5 , dl , c6 ; duplex print - manual ; print resolution - 1440 x 720compatible ink bottle - t7741 ; page yield - 6000 pages - as per iso standardswarranty - 1 year onsite . , ups ( make - apc 600 va ) : colour : black , item height : 21 . 8 centimetersitem width : 10 . 7 centimeters , item weight : 4 . 7 kg , product dimensions : 23 . 7 x 10 . 7 x 21 . 8 cm , batteries : 1 lithium polymer batteries required . ( included ) , wattage : 360 watts , battery charge time ( in hours ) : 4 hours , average battery standby life ( in hours ) 20 minutes , average battery life ( in hours ) : 3 years , lithium battery energy content : 4 . 20 watt hours , lithium battery voltage 230 volts , lithium battery weight : 0 . 85 grams , included components ups , user manual and warranty for 1 ( one ) year onsite . , note:- rate to be put in column no . 13 of this boq should be inclusive of all charges and taxes .