Social Science — CBSE Class 10 board question

Changes in Printing Technology in the 19th Century:

1. Metal Press: By the late 18th century, the printing press was made of metal, replacing wooden presses.

1. Power-driven Cylindrical Press: By mid-19th century, Richard M. Hoe of New York perfected this press, capable of printing 8,000 sheets per hour, especially useful for newspapers.

1. Offset Press: Developed in the late 19th century, it could print up to six colours at a time.

1. Electric-operated Presses: From the turn of the 20th century, electrically operated presses further accelerated printing operations.

1. Other Improvements: Methods of feeding paper improved, quality of plates became better, automatic paper reels and photoelectric controls of colour register were introduced.

These cumulative mechanical improvements transformed the appearance of printed texts.

Source: Chapter 5, Section 5.2 — Further Innovations

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• Examiners expect 5 distinct points for a 5-mark question — one point per mark is a safe strategy.
• Always use specific details like inventor names (Richard M. Hoe), numbers (8,000 sheets/hour, six colours) — these fetch full marks.
• End with a brief concluding line to show analytical understanding (the question says "analyze").
• Do not mix in earlier centuries' developments (Gutenberg etc.) unless asked; stay focused on the 19th century as the question demands.