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Showing posts with the label History Of Computer

The history of computers, organized by key developments and innovations:

Early Developments: Abacus (3000 BCE): The abacus, a rudimentary counting tool, emerges as one of the earliest devices for performing arithmetic calculations. Antikythera Mechanism (100 BCE): An ancient Greek analog computer, used to predict astronomical positions and eclipses. 19th Century: Charles Babbage and the Analytical Engine (1837): Charles Babbage designs the Analytical Engine, a mechanical computing device considered the precursor to modern computers. Although never completed, it laid the foundation for future computational concepts. 20th Century: Mechanical Calculators (1900s): Mechanical calculators, such as the Curta calculator and Marchant calculator, are developed for performing arithmetic calculations. Developed by J. Presper Eckert and John Mauchly, ENIAC (Electronic Numerical Integrator and Computer) is considered the first general-purpose electronic digital computer. Transistors (1947): Invention of the transistor by William Shockley, John Bardeen, and Walter Brattai...
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Last 7 Days

Creating a Ping Pong Game in mBlock

  Creating a Ping Pong Game in mBlock is a fun and interactive way for students to learn programming concepts like loops, conditionals, and events. Here's a step-by-step guide: Objective Students will create a basic ping-pong game where: 1.     A ball moves across the screen. 2.     Players control a paddle to bounce the ball. 3.     The game ends if the ball misses the paddle. Step-by-Step Instructions 1. Setup the Stage Open mBlock and switch to the Sprite Tab . Choose or draw a simple backdrop (e.g., a solid background or a sports theme). 2. Add Sprites Ball : Click "Choose a Sprite" and select or draw a ball. Paddle : Add a new sprite, like a rectangle, to represent the paddle. 3. Code for the Ball 1.     Initialize the Ball : o    Add the following script to the Ball: plaintext Copy code When Green Flag clicke...
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Unit-1 Computer Network

  Fill in the Blanks 1.   A network of computers is called a ________. o     Answer: network 2.   The most common type of network is the ________. o     Answer: Internet 3.   A ________ is used to connect different computers in a network. o     Answer: router 4.   The main computer in a network is called a ________. o     Answer: server 5.   A small network within a single building is called a ________. o     Answer: LAN (Local Area Network) True or False 6.   A WAN covers a larger area than a LAN. (True/False) o     Answer: True 7.   The Internet is a type of LAN. (True/False) o     Answer: False 8.   Computers in a network cannot share files. (True/False) o     Answer: False 9.   A modem is used to connect to the Internet. (True/False) o     Answer: True ...
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Grade-3 (KEYBOARD)

  1.   What is a keyboard? Ø A keyboard is a device that helps us type letters, numbers, and symbols into a computer. 2.   List out the types of keys. Ø Alphabet keys Ø Number keys Ø Function keys Ø Punctuation keys Ø Special keys (like Shift, Ctrl, Alt) Ø Cursor control keys (like arrow keys) 3.   What do you mean by alphabet key? Ø Alphabet keys are the keys with letters on them (A to Z) that we use to type words. 4.   What is a shift key? Ø The Shift key types capital letters or special characters like @, #, $, etc. 5.   What is a caps lock key? Ø The Caps Lock key is used to type all letters in capital without holding the Shift key. 6.   Why do you use punctuation keys? Ø Punctuation keys are used to add symbols like commas (,), periods (.), question marks (?), and more to make sentences clear. 7.   What are the cursor control keys? Ø Cursor control keys, like the arrow keys, help move the cursor...
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