Computer 1stQ Lesson 2 - The Modern Computers-How They All Began and Early Computing Devices.pptx

Computer 1stQ Lesson 2 - The Modern Computers-How They All Began and Early Computing Devices.pptx

1. Lesson 1: The Modern Computers-How They All Began and Early Computing Devices

2. WHOA! Can you imagine a world without computers?

3. People have always found ways of doing things more easily. For example: a gas range, an oven, and other kitchen appliances were invented to make cooking easier, faster, and more enjoyable. Can you give other examples of inventions? Since the day, the world began, the most basic way to count was with the use of our fingers. When we learned how to count, our parents and teachers taught us to count loud using our fingers too. Counting large numbers is a difficult thing to do. Different types of machines were invented in order for us to count large numbers.

4. DEVICES INVENTED BEFORE THE COMPUTER ABACUS 01 PASCALINE 02 LEIBNIZ CALCULATOR 03 JACQUARD LOOM 04 ANALYTICAL ENGINE 05 TABULATING MACHINE 06

5. Around the 13 th century, the Chinese people invented the abacus . It was a handy tool for counting big numbers and could perform addition and subtraction using beads and rods. They used the abacus for business and other things that required counting large numbers. The abacus is still being used today. 1. ABACUS

6. 2. PASCALINE Blaise Pascal invented the Pascaline , which was first known as the Pascal’s calculator. Pascaline is also called as Arithmetic Machine . Instead of using rods and beads, he used wheels to move its counter to perform addition and subtraction. Blaise Pascal developed Pascaline to help his father in performing his job as a tax collector.

7. 3. Leibniz Calculator The Leibniz Calculator was created by Gottfried Wilhem Leibniz . This type of calculator was able to do the four basic mathematical operations – addition, subtraction, multiplication, and division. He was also an advocate of the binary system. Binary numbers are ideal for machines because it requires only two digits, which can be easily presented by the on and off states of switch.

8. 4. Jacquard Loom Jose Marie Jacquard invented the Jacquard Loom . It is a device that used punched cards with holes to weave fabrics with great designs.

9. 5 . ANALYTICAL ENGINE The Analytical engine is considered as the beginning of the modern computer since it was able to perform complex mathematical operations. Charles Babbage and Lady Augusta Byron worked together to make this machine as the first programmable computing device. Unfortunately, Charles Babbage died without finishing his work. Lady Augusta kept records of his original work and completed the project. The original idea of a computing device name came from Charles Babbage, and that is why he is called as “The Father of the Modern Computer.”

10. 6. TABULATING MACHINE It was Herman Hollerith who invented the tabulating machine. This machine was able to count and record data faster. He was hired by the U.S government to use his machine in tabulating census. Census is a count of people living in a place or country.

11. Seatwork #1 in Computer Do pages 11 and 12 (1-5)