Class 9 - FIT - Chapter 02 - Computer System Organisation - Very Short Answer Type Questions (#cbsenotes)(#eduvictors)

Computer System Organisation

Very Short Answer Type Questions

Q1: Name the most commonly used input device.

Answer: Keyboard is the most commonly used input device, which can also be used to type commands directing the computer to perform certain actions.


Q2: Explain the main advantage and disadvantage of an OCR?

Answer: The main advantage of an OCR is the ability to scan the characters accurately. The disadvantage of an OCR is the limited number of characters offered by it.


Q3: Why do we use a webcam?

Answer: A webcam is basically used for capturing a series of digital images that are transferred by the computer to a server and then displayed to the hosting page.


Q4: Name the memory (Primary/Secondary)with the following features:

• If the current is interrupted, data is lost.
• Before a program is ready to run, the program is loaded into this memory, which allows the CPU to directly access the program.

CBSE Class 6 - 8 - English Grammar - Prepositions (Worksheet) (#englishgrammar)(#eduvictors)

English Grammar - Prepositions 

(Worksheet)

Directions: Fill in the blanks with suitable prepositions.

1- I didn’t go _____ school _____ Monday.

2- _____ Diwali people usually have big meals.

3- She’s graduating _____ June.

4- Don’t listen _____ him!

5- We ate pizza _____ lunch.

6- I’m traveling _____ April 7.

7- Mahesh is getting married ______ Sana.

CBSE Class 8 - Maths - Half Year Sample Question Paper - (2018-19) (#cbsepapers)(#eduvictors)

CBSE Class 8 - Maths
 - Half Year Sample
Question Paper - (2018-19)

CBSE Class 8 - Mathematics - Chapter 1 - Integers (Key Points) (#cbsenotes)(#eduvictors)

Mathematics - Chapter 1 - Integers
(Key Points)

⑴ Integers are a bigger collection of numbers which is formed by whole numbers and their negatives.

⑵You have studied in the earlier class,  about the representation of integers on the number line and their addition and subtraction.

⑶ We now study the properties satisfied by addition and subtraction.
(a) Integers are closed for addition and subtraction both. That is, a + b and a – b are again integers, where a and b are any integers.

(b) Addition is commutative for integers, i.e., a + b = b + a for all integers a and b.

(c) Addition is associative for integers, i.e., (a + b) + c = a + (b + c) for all integers a, b and c.

(d) Integer 0 is the identity under addition. That is, a + 0 = 0 + a = a  for every integer a.

⑷We studied, how integers could be multiplied and found that product of a  positive and a negative integer is a negative integer, whereas the product of two negative integers is a positive integer. For example, – 2 × 7 = – 14 and – 3 × – 8 = 24.

⑸ Product of even number of negative integers is positive, whereas the product of an odd number of negative integers is negative.

CBSE Class 8 - Maths - Term 1 Sample Question Paper - (2018-19) (#eduvictors)(#cbsepapers)

CBSE Class 8 - Maths
 - Term 1 Sample
Question Paper - (2018-19)

Class 11 - English - Hornbill The Portrait of Lady By Khushwant Singh - Chapter Summary and Q and A (#cbsenotes)(#eduvictors)

Class 11 - English - Hornbill

The Portrait of Lady

By Khushwant Singh

Chapter Summary

‘The Portrait of a Lady' is written in the first person and is in the biographical mode. In this story, the writer gives a detailed account of his Grandmother with whom he had a long association. Khushwant Singh recalls his Grandmother as short, fat and slightly bent. Her silver hair was scattered untidily on her wrinkled face. She hobbled around the house in white clothes with one hand resting on her waist and the other telling the beads of her rosary. Khushwant Singh remembers her as not very pretty but always beautiful. He compares her serene face to that of a winter landscape.

During their long stay in the village, Grandmother woke him up in the morning, plastered his wooden slate, prepared his breakfast, and escorted him to school. While he studied alphabets, she read the scriptures in the temple attached to the school. On their way back home she fed stale chapattis to stray dogs.

CBSE Class 8 Mathematics Revision Notes Chapter - 05 Data Handling (#eduvictors)(#cbsenotes)

Chapter - 05 Data Handling

Class 8 Mathematics 

Revision Notes

• Data Handling: Deals with the process of collecting data, presenting it and getting result.

• Data mostly available to us in an unorganised form is called raw data.

• Grouped data can be presented using histogram. Histogram is a type of bar diagram, where the class intervals are shown on the horizontal axis and the heights of the bars show the frequency of the class interval. Also, there is no gap between the bars as there is no gap between the class intervals.

• In order to draw meaningful inferences from any data, we need to organise the data systematically.

• Frequency gives the number of times that a particular entry occurs.

• Raw data can be 'grouped' and presented systematically through 'grouped frequency distribution'.

• Statistics: The science which deals with the collection, presentation, analysis and interpretation of numerical data.

CBSE Class 10 - Hindi - Term 1 Sample Question Paper - (2018-19)(#eduvictors)(#cbsepapers)

CBSE Class 10 - Hindi
 - Term 1 Sample
Question Paper - (2018-19)

English Grammar - Sentence Correction - Prepositional Errors (#cbsenotes)(#eduvictors)

Sentence Correction - Prepositional Errors

Question: Following sentences have prepositional errors. Write the correct sentence.

1. He is bad in tennis.

2. I am good in history.

3. She is clever in cooking.

4. He is ill from flu.

Book For Serious Mathematics Readers - Euclid's Window: The Story of Geometry from Parallel Lines to Hyperspace

Euclid's Window: The Story of Geometry from Parallel Lines to Hyperspace

Must Read Book For Mathematics Students and Teachers

Euclid's Window - Buy Ebook or Hard Copy

Through Euclid's Window Leonard Mlodinow brilliantly and delightfully leads us on a journey through five revolutions in geometry, from the Greek concept of parallel lines to the latest notions of hyperspace. Here is an altogether new, refreshing, alternative history of math revealing how simple questions anyone might ask about space in the living room or in some other galaxy have been the hidden engine of the highest achievements in science and technology.

Mlodinow reveals how geometry's first revolution began with a "little" scheme hatched by Pythagoras: the invention of a system of abstract rules that could model the universe. That modest idea was the basis of scientific civilization. But further advance was halted when the Western mind nodded off into the Dark Ages. Finally in the fourteenth century an obscure bishop in France invented the graph and heralded the next revolution: the marriage of geometry and number. Then, while intrepid mariners were sailing back and forth across the Atlantic to the New World, a fifteen-year-old genius realized that, like the earth's surface, space could be curved. Could parallel lines really meet? Could the angles of a triangle really add up to more or less than 180 degrees? The curved-space revolution reinvented both mathematics and physics; it also set the stage for a patent office clerk named Einstein to add time to the dimensions of space. His great geometric revolution ushered in the modern era of physics.