a.
How did the early man count?
b. What is Abacus?
c. What did Pascaline consist of?
d. Write the five key features that Charles Babbage used in his Analytica
e. What was the use of Herman Hollerith's Tabulating machine?
f. Write down two characteristics of computer.
5. What are the disadvantages of computer? Write any two of ther
Ipplication Based Question.
our father wants to buy a device for your younger brother or siste
hich calculating device would you suggest?
LAB ACTIVITY
Answers
Answer:
a= Early humans counted and performed simple calculations using tools such as their fingers, notches in sticks, knotted strings, and pebbles. Most early cultures evolved some form of a counting board or abacus to perform calculations
b= The abacus, also called a counting frame, is a calculating tool that has been in use since ancient times and is still in use today. It was used in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the written Arabic numeral system. The exact origin of the abacus is unknown.
c=In total it consisted of eight wheels, six of them were used to represent whole numbers and two more wheels, at the far left, to represent decimal numbers. With this arrangement, whole numbers between 0'01 and 999.999'99 could be handled
d= The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician and computer pioneer Charles Babbage.[2][3] It was first described in 1837 as the successor to Babbage's difference engine, which was a design for a simpler mechanical computer.[4]
e= 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
f=The characteristics of computers that have made them so powerful and universally useful are speed, accuracy, diligence, versatility and storage capacity. Let us discuss them briefly. Computers work at an incredible speed. A powerful computer is capable of performing about 3-4 million simple instructions per second.
mujhe five question ka answer mahi patq