COMPUTER HARDWARE COMPONENTS FUNCTIONS
WHAT IS A HARD DRIVE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Magnetic disk
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Punched paper
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Drive system
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Punched card
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Detailed explanation-1: -A punched card (also punch card or punched-card) is a piece of stiff paper that holds digital data represented by the presence or absence of holes in predefined positions. Punched cards were once common in data processing applications or to directly control automated machinery.
Detailed explanation-2: -Second Generation of Computers Input/output devices – punched cards and magnetic tape. Examples – IBM 1401, IBM 7090 and 7094, UNIVAC 1107, etc.
Detailed explanation-3: -Herman Hollerith invented and developed a punch-card tabulation machine system that revolutionized statistical computation.
Detailed explanation-4: -The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards. Invented by Herman Hollerith, the machine was developed to help process data for the 1890 U.S. Census.