6 files changed, 88 insertions, 0 deletions
diff --git a/2492/CH12/EX12.1/ex12_1.sce b/2492/CH12/EX12.1/ex12_1.sce
new file mode 100755
index 000000000..0fe0436fd
--- /dev/null
+++ b/2492/CH12/EX12.1/ex12_1.sce
@@ -0,0 +1,10 @@
+// Exa 12.1
+format('v',6)
+clc;
+clear;
+close;
+// Given data
+RAMbit= 2*4;//K bit RAM IC chip
+// The capacity of the memory chip,
+Capacity = RAMbit*2^10;// in bits
+disp(Capacity,"The capacity (or density) of the memory chip in bits is");
diff --git a/2492/CH12/EX12.2/ex12_2.sce b/2492/CH12/EX12.2/ex12_2.sce
new file mode 100755
index 000000000..8aa9c5c06
--- /dev/null
+++ b/2492/CH12/EX12.2/ex12_2.sce
@@ -0,0 +1,26 @@
+// Exa 12.2
+format('v',6)
+clc;
+clear;
+close;
+// Given data
+// (a) For 1024 number of bits
+No_of_bits= 1024;// bits
+Req_add_bits= log(No_of_bits)/log(2);
+disp(Req_add_bits,"Address bits required for a memory that has 1024 number of bits");
+
+// (b) For 256 number of bits
+No_of_bits= 256;// bits
+Req_add_bits= log(No_of_bits)/log(2);
+disp(Req_add_bits,"Address bits required for a memory that has 256 number of bits");
+
+// (c) For 4098 number of bits
+No_of_bits= 4096;// bits
+// 2^12= 4096, 2^13= 8192, where 4096<4098<8192 or 2^12<4098<2^13, hence
+Req_add_bits= 13;
+disp(Req_add_bits,"Address bits required for a memory that has 4098 number of bits");
+
+// d) For 16384 number of bits
+No_of_bits= 16384;// bits
+Req_add_bits= log(No_of_bits)/log(2);
+disp(Req_add_bits,"Address bits required for a memory that has 16384 number of bits");
diff --git a/2492/CH12/EX12.3/ex12_3.sce b/2492/CH12/EX12.3/ex12_3.sce
new file mode 100755
index 000000000..e02ca9492
--- /dev/null
+++ b/2492/CH12/EX12.3/ex12_3.sce
@@ -0,0 +1,12 @@
+// Exa 12.3
+format('v',6)
+clc;
+clear;
+close;
+// Given data
+memory = 16;// in K
+memory= memory*1024;// in bits
+// Number of bits of storage,
+Req_add_bits= log(memory)/log(2);
+disp(Req_add_bits,"Number of bits of storage is : ")
+disp(Req_add_bits,"Number of lines in address bus is : ")
diff --git a/2492/CH12/EX12.4/ex12_4.sce b/2492/CH12/EX12.4/ex12_4.sce
new file mode 100755
index 000000000..6f27144bb
--- /dev/null
+++ b/2492/CH12/EX12.4/ex12_4.sce
@@ -0,0 +1,11 @@
+// Exa 12.4
+format('v',6)
+clc;
+clear;
+close;
+// Given data
+memory= 16;// in K
+wordBit= 8;
+// Number of address
+N= log((memory/wordBit)*1024)/log(2);
+disp(N,"The number of address lines is : ")
diff --git a/2492/CH12/EX12.5/ex12_5.sce b/2492/CH12/EX12.5/ex12_5.sce
new file mode 100755
index 000000000..c36c10cf2
--- /dev/null
+++ b/2492/CH12/EX12.5/ex12_5.sce
@@ -0,0 +1,17 @@
+// Exa 12.5
+format('v',8)
+clc;
+clear;
+close;
+// Given data
+memory= 16;// in K
+memory= memory*1024;// in bits
+// Number of words
+N1= memory;
+disp(N1,"The number of words is : ")
+N2= 32;// number of bits per word
+disp(N2,"The number of bits per word is : ")
+// Number of memory cell
+N3= N2*memory;
+disp(N3,"The number of memory cell is : ")
+
diff --git a/2492/CH12/EX12.6/ex12_6.sce b/2492/CH12/EX12.6/ex12_6.sce
new file mode 100755
index 000000000..2bf383dba
--- /dev/null
+++ b/2492/CH12/EX12.6/ex12_6.sce
@@ -0,0 +1,12 @@
+// Exa 12.6
+format('v',9)
+clc;
+clear;
+close;
+// Given data
+N1= 16;// address input
+inputs= 4;
+outputs= 4;
+// Total number of memory cells
+N2= 2^N1*2^inputs;
+disp(N2,"Total number of memory cells is : ")