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JSS1: COMPUTER STUDIES - 1ST TERM
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Information Age | Week 13 Topics|1 Quiz
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Historical Development of Computers | Week 22 Topics|1 Quiz
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Mechanical Counting & Calculating Devices | Week 31 Topic|1 Quiz
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Electro-mechanical Counting Devices | Week 45 Topics|1 Quiz
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Electronic Counting Devices & Modern Computers | Week 57 Topics|1 Quiz
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Introduction - Electronic Counting Devices & Modern Computers
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Herman Hollerith’s Machine
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John Von Neumann’s Machine
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Electronic Numerical Integrator & Computer (ENIAC)
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Electronic Discrete Variable Automatic Computer (EDVAC)
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Electronic Delay Storage Automatic Calculator (EDSAC)
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Universal Automatic Computer (UNIVAC)
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Introduction - Electronic Counting Devices & Modern Computers
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Modern Machines | Week 64 Topics|1 Quiz
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Contributions of Named Information Technology Inventors | Week 72 Topics
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Information Technology Inventors & their Inventions II | Week 81 Topic
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Information Technology Inventors & their Inventions III | Week 92 Topics|1 Quiz
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Classification of Computers | Week 107 Topics|1 Quiz
Lesson 3,
Topic 1
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Mechanical Counting and Calculating Devices
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Topic Content:
- Meaning of Mechanical Counting and Calculating Devices
- Types of Mechanical Counting and Calculating Devices
- Abacus, Logarithm Table, John Napier’s Bones, Slide Rule
What are Mechanical Counting and Calculating Devices?
Mechanical counting devices are manually operated simple machines or tools for counting and calculating numbers. They are simple equipment that can be operated manually by individuals.
The need for faster, more accurate, and reliable data,
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