A computer system has a two$-$level cache processor with the following characteristics:Level $1$:Split configuration with:I miss rate $4\%$D miss rate $8\%$Frequency of data accesses is $50\%$Hit time at Level$1$ is $0\mathrm{.}8$nsLevel$2$ cache:Unified configuration with:Miss rate $25\%$Hit time at Level $2$ is $3$ nsThe main memory which exhibits $50$ ns access time.Find the AMAT if only level $1$ was used, and when both levels are used. Compare the AMAT for:the system with only L$1$the system with L$1$ and L$2$