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Transcript

INTRODUCTION

WHAT IS

COMPUTER?

COMPUTER

PERIODS

PETROGLYPHYS

PAPYRUS PAPER

EGYPTIAN

SCROLLS

ABACUS

THE MECHANICAL ERA

THE MECHANICAL ERA

SLIDE RULE

PASCALINE

DIFFERENCE ENGINE

ELECTRO MECHANICAL ERA

MORSE CODE

TELEPHONE

RADIO

HARVARD MARK

THE ELECTRONIC ERA

CATEGORIES

2ND GENERATION

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