a) Computer memory is one of the most valuable resources used by computers and other electronic devices. With the aid of a diagram, draw a basic architecture of ii. SRAM memory unit iii. DRAM memory unit [6 Marks] b) Explain how each (SRAM and DRAM) is used to store information (a bit) and how information is read and written to and from the memory [10 Marks] c) Give an explanation on, how SRAM and DRAM are packed and how they work as modules used in modern computers [4 Marks]