add lesson 08

Author: moshirishakiba

08_lesson.txt

@@ -0,0 +1,28 @@
+Today is Monday on August 21st
+
+Lesson 8: page 10 and 11
+
+------------------------
+
+Second Generation Computers
+
+The period of second generation was from 1959 - 1965. In this generation, transistors were used that were cheaper (or: since they were cheaper), consumed less power, more compact ins size, more reliable and faster than the first generation machines made of vacuum tubes. In this generation, magnetic cores were used as the primary memory and magnetic tape and magnetic disks as secondary storage devices.
+In this generation, assembly language and high-level programming languages like FORTRAN, COBOL, were used. The computer used batch processing and multi-programming operating system.
+The main features of (the) second generation are:
+    Use of transistor
+    Reliable in comparison to (the) first generation computers
+    Smaller size as compared to (the) first generation computers
+    Generated less heat as compared to (the) first generation computers
+    Consumed less electricity as compared to (the) first generation computers
+    Faster than (the) first generation computers
+    Still very costly
+    AC required
+    Supported machine and assembly languages
+
+Some computers of this generation were:
+     IBM 1620
+     IBM 7094
+     CDC 1604
+     CDC 3600
+     UNIVAC 1108
+     

08_vocabulary.txt

@@ -309,3 +309,5 @@ DC,# 1. direct current,
 direct current,# an electric current that flows in one direction only,
 ,,
 lesson 8,# page 10 and 11,
+,,
+lesson 9,# page 11 and 12,