computer learning hub

   Computer ki Generations 6.)Computer ki 5 generations hoti hain:        1.)First Generation (1940–1956) – Vacuum              Tubes  Technology: Vacuum Tubes Features: Bahut bade size ke, zyada heat aur bijli consume karte the. Example: ENIAC, UNIVAC       2.)Second Generation (1956–1963) –                          Transistors Technology: Transistors Features: Chhote, tez aur kam bijli khapat. Example: IBM 1401       3.)Third Generation (1964–1971) –         Integrated Circuits (IC) Technology: IC (Integrated Circuit) Features: Speed badhi, size aur cost kam hui. Example: IBM System/360     4.)Fourth Generation (1971–Present) –         Microprocessors Technology: Microprocessor Features: Personal Computers (PC), Laptops aur Smartphones ka yug. Example: Intel-...

  Types of Computer 5.) Types of Computer  Computers can be classified into the following types: 1.   Supercomputer The fastest and most powerful type of computer. Used for scientific research, weather forecasting, and space exploration. 2. Mainframe Computer Large computers used by banks, government organizations, and big companies. Can handle thousands of users at the same time. 3. Minicomputer Medium-sized computers used by small and medium businesses. Supports multiple users. 4. Microcomputer   Small computers designed for individual use. Examples: Desktop, Laptop, Tablet, Smartphone. 5. Workstation High-performance computers used for engineering, graphic design, and scientific applications.

Title: computer learning hub 4.) Input and Output Devices    Input Devices Input devices are hardware devices used to enter data and instructions into a computer. Examples: Keyboard Mouse Scanner Microphone Webcam Joystick Touchscreen Output Devices Output devices are hardware devices that receive data from the computer and present the results to the user. Examples: Monitor Printer Speaker Projector Headphones Plotter Difference Between Input and Output Devices Input Devices                                                                              Output Devices Send data to the computer                                                   Receive dat...

Title: Introduction of computer hub   3.)   Hardware and Software   Hardware:    The physical parts of a computer that you can touch and see.  Examples: Keyboard, Mouse, Monitor, CPU, Printer.  Software: The programs and applications that run on a computer. You can use them, but you cannot physically touch them.  Examples: Windows, MS Word, Google Chrome, WhatsApp, Games. Simple Definition: Hardware = Physical parts of a computer Software = Programs and instructions that make the computer work 

Ms Word All Shortcut Keys ⌨️ Shortcut key   Ctrl+A =  Select All  Ctrl+B =  Bold Ctrl+C =  Copy Ctrl+D =  Duplicate  Ctrl+E =  Alignment Centre Side Ctrl+F =  Find Ctrl+G =  Group & (Go To) Ctrl+H =  Replace  Ctrl+I =  Italic  Ctrl+J =  Justify Ctrl+K =  Hyperlink  Ctrl+L =  Alignment Left Side  Ctrl+M =  New Slide  Ctrl+N =  New Page  Ctrl+O =  Open  Ctrl+P =  Print  Ctrl+Q =  Quite  Ctrl+R =  Alignment Right Side  Ctrl+S =  Save Ctrl+T =  New Tab Ctrl+U =  Underline  Ctrl+V =  Paste  Ctrl+W =  Close The Window  Ctrl+X =  Cut Ctrl+Y =  Redo Ctrl+Z =  Undo 

 Title: Introduction of computer hub  Content:   1.)    What is a computer? A computer is an electronic machine that process tha input data processes it according to instructions (programs), stores information, and produces results (output). Uses of computer: Education   Banking  Offices Online Shopping Communication Business 2.)   Main parts of a computer: Monitor CPU (Central Processing Unit) Keyboard Mouse