Page 1 (0s)
Abacus. History of computer.
Page 2 (8s)
Napier’s Bone. Year-1617.
Page 3 (15s)
Slide Rule. Slide Rule. Year 1620.
Page 4 (22s)
Pascalin (year 1642) & Steped reckoner (year 1671).
Page 5 (30s)
Difference Engine(year-1822 ) & Analytical Engine(year 1833).
Page 6 (38s)
Item 1 Item 2 Item 3 Item 4 Item 5 50 40 30 20 10 0.
Page 7 (50s)
Mark-1 ( year-1944 ).
Page 8 (59s)
Univac(year 1952).