Which of the following units represents the largest amount of data?

BB BB AD PSC BFIDC Assistant Manager - 2013 BB AD - 2008 BB AD - 2009 BB AD - 2011 Agrani Bank Agrani Officer - 2010 PB Pubali Senior Officer - 2010 RAKUB RAKUB Senior Officer - 2011 RAKUB Senior Officer - 2010 TBL Trust Asst. Officer - 2012 Combined Bank Combined Bank Senior Officer (IT) - 2008 Uttara Bank Uttara Officer (Cash) - 2011 Similar to Bank Bank PO - 2013 KB Karmasangsthan Senior Officer - 2009 Karmasangsthan Officer - 2009 Bank Asia Bank Asia MTO - 2011 IBBL IBBL Officer - 2016 Primary Teacher Primary Assistant Teacher - 2018 Standard Bank Standard Asst. Officer - 2012 NSI – Despatch Rider and Office Sohayak - 2021 NSI – Wireless Operator and Accountant cum-Cashier - 2021 LGED Work Assistant - 2023 SBC SBC Officer - 2023 DGHS – NMEP Technician - 2023 কম্পিউটার ও তথ্য প্রযুক্তি (Computer & ICT) 2011 টিবি, পিবি, ইবি (TB, PB, EB - Terabyte, Petabyte)