Computer Courses | Computer Tutorial | Computer Classes | Computer Institute | Computer Tricks

MS Excel Shortcuts : ------------------------- Alt + Tab : Switch between open applications Alt + Shift + Tab : Switch backwards between open applications Alt + Print Screen : Create screen shot for current program Print Screen : Create screen shot for Display Ctrl + Alt + Del : Reboot/Windows® task manager Ctrl + Esc : Bring up start menu Alt + Esc : Switch between applications on taskbar F2 : Rename selected icon F3 : Start find from desktop F4 : Open the drive selection when browsing F5 : Refresh contents Alt + F4 : Close current open program Ctrl + F4 : Close window in program Ctrl + PlusKey : Automatically adjust widths of all columns in Windows Explorer Alt + Enter : Open properties window of selected icon or program Shift + F10 : Simulate right-click Shift + Del : Delete program/files permanently Holding Shift During Bootup : Boot safe mode or bypass system files

MS Word Shortcuts : ------------------------- Ctrl + A : Select all contents of the page Ctrl + B : Bold highlighted selection Text Ctrl + C : Copy selected text Ctrl + X : Cut selected text Ctrl + N : Open new/blank document Ctrl + O : Open options Ctrl + P : Open the print window Ctrl + F : Open find box Ctrl + I : Italicize highlighted selection Ctrl + K : Insert link Ctrl + U : Underline highlighted selection Ctrl + V : Paste Ctrl + Y : Redo the last action performed Ctrl + Z : Undo last action Ctrl + G : Find and replace options Ctrl + H : Find and replace options Ctrl + J : Justify paragraph alignment Ctrl + L : Align selected text or line to the left Ctrl + Q : Align selected paragraph to the left Ctrl + E : Align selected text or line to the center Ctrl + R : Align selected text or line to the right Ctrl + M : Indent the paragraph Ctrl + T : Hanging indent Ctrl + D : Font options Ctrl + Shift + F : Change the font Ctrl + Shift + > : Increase selected font +1 Ctrl + ] : Increase selected font +1 Ctrl + Shift + < : Decrease selected font -1 Ctrl + [ : Decrease selected font -1 Ctrl + Shift + * : View or hide non printing characters Ctrl + ← : Move one word to the left Ctrl + → : Move one word to the right Ctrl + ↑ : Move to beginning of the line or paragraph Ctrl + ↓ : Move to the end of the paragraph Ctrl + Del : Delete word to right of cursor Ctrl + Backspace : Delete word to left of cursor Ctrl + End : Move cursor to end of document Ctrl + Home : Move cursor to beginning of document Ctrl + Space : Reset highlighted text to default font Ctrl + 1 : Single-space lines Ctrl + 2 : Double-space lines Ctrl + 5 : 1.5-line spacing Ctrl + Alt + 1 : Change text to heading 1 Ctrl + Alt + 2 : Change text to heading 2 Ctrl + Alt + 3 : Change text to heading 3 F1 : Open help Shift + F3 : Change case of selected text Shift + Insert : Paste F4 : Repeat last action performed (Word 2000+) F7 : Spell check selected text and/or document Shift + F7 : Activate the thesaurus F12 : Save as Ctrl + S : Save Shift + F12 : Save Alt + Shift + D : Insert the current date Alt + Shift + T : Insert the current time Ctrl + W : Close document

Windows logo key Shortcuts : ------------------------- Windows logo key : Open or close Start Windows logo key + A : Open Action center Windows logo key + B : Set focus in the notification area Windows logo key + C : Open Cortana in listening mode(This shortcut is turned off by default.) Windows logo key + Shift + C : Open the charms menu Windows logo key + D : Display and hide the desktop Windows logo key + Alt + D : Display and hide the date and time on the desktop Windows logo key + E : Open File Explorer Windows logo key + F : Open Feedback Hub Windows logo key + G : Open Game bar when a game is open Windows logo key + I : Open Settings Windows logo key + J : Set focus to a Windows tip when one is available. When a Windows tip appears, bring focus to the Tip. Pressing the keyboard shortcuts again to bring focus to the element on the screen to which the Windows tip is anchored. Windows logo key + K : Open the Connect quick action Windows logo key + L : Lock your PC or switch accounts Windows logo key + M : Minimize all windows Windows logo key + O : Lock device orientation Windows logo key + P : Choose a presentation display mode Windows logo key + R : Open the Run dialog box Windows logo key + : Open search Windows logo key + T : Cycle through apps on the taskbar Windows logo key + U : Open Ease of Access Center Windows logo key + V : Cycle through notifications Windows logo key + Shift + V : Cycle through notifications in reverse order Windows logo key + X : Open the Quick Link menu Windows logo key + Z : Show the commands available in an app in full-screen mode Windows logo key + comma (,) : Temporarily peek at the desktop Windows logo key + Pause : Display the System Properties dialog box Windows logo key + Ctrl + F : Search for PCs (if you are on a network) Windows logo key + Shift + M : Restore minimized windows on the desktop Windows logo key + number : Open the desktop and start the app pinned to the taskbar in the position indicated by the number. If the app is already running, switch to that app. Windows logo key + Shift + number : Open the desktop and start a new instance of the app pinned to the taskbar in the position indicated by the number Windows logo key + Ctrl + number : Open the desktop and switch to the last active window of the app pinned to the taskbar in the position indicated by the number Windows logo key + Alt + number : Open the desktop and open the Jump List for the app pinned to the taskbar in the position indicated by the number Windows logo key + Ctrl + Shift + number : Open the desktop and open a new instance of the app located at the given position on the taskbar as an administrator Windows logo key + Tab : Open Task view Windows logo key + Up arrow : Maximize the window Windows logo key + Down arrow : Remove current app from screen or minimize the desktop window Windows logo key + Left arrow : Maximize the app or desktop window to the left side of the screen Windows logo key + Right arrow : Maximize the app or desktop window to the right side of the screen Windows logo key + Home : Minimize all except the active desktop window (restores all windows on second stroke) Windows logo key + Shift + Up arrow : Stretch the desktop window to the top and bottom of the screen Windows logo key + Shift + Down arrow : Restore/minimize active desktop windows vertically, maintaining width Windows logo key + Shift + Left arrow or Right arrow : Move an app or window in the desktop from one monitor to another Windows logo key + Spacebar : Switch input language and keyboard layout Windows logo key + Ctrl + Spacebar : Change to a previously selected input Windows logo key + Ctrl + Enter : Open Narrator Windows logo key + forward slash (/) : Begin IME reconversion Windows logo key + plus (+) or minus (-) : Zoom in or out using Magnifier Windows logo key + Esc : Exit Magnifier

General Windows Shortcuts : ------------------------- Ctrl + X : Cut the selected item Ctrl + C : Copy the selected item Ctrl + V : Paste the selected item Ctrl + Z : Undo an action Alt + Tab : Switch between open apps Alt + F4 : Close the active item, or exit the active app Alt + F8 : Show your password on the sign-in screen Alt + Esc : Cycle through items in the order in which they were opened Alt + underlined letter : Perform the command for that letter Alt + Enter : Display properties for the selected item Alt + Spacebar : Open the shortcut menu for the active window Alt + Left arrow : Go back Alt + Right arrow : Go forward Alt + Page Up : Move up one screen Alt + Page Down : Move down one screen Ctrl + F4 : Close the active document (in apps that are full-screen and let you have multiple documents open at the same time) Ctrl + A : Select all items in a document or window Ctrl + D (or Delete) : Delete the selected item and move it to the Recycle Bin Ctrl + R (or F5) : Refresh the active window Ctrl + Y : Redo an action Ctrl + Right arrow : Move the cursor to the beginning of the next word Ctrl + Left arrow : Move the cursor to the beginning of the previous word Ctrl + Down arrow : Move the cursor to the beginning of the next paragraph Ctrl + Up arrow : Move the cursor to the beginning of the previous paragraph Ctrl + Alt + Tab : Use the arrow keys to switch between all open apps Ctrl + Alt + Shift + arrow keys : When a group or tile is in focus on the Start menu, move it in the direction specified Ctrl + arrow key (to move to an item) + Spacebar : Select multiple individual items in a window or on the desktop Ctrl + Shift with an arrow key : Select a block of text Ctrl + Esc : Open Start Ctrl + Shift + Esc : Open Task Manager Ctrl + Shift : Switch the keyboard layout when multiple keyboard layouts are available Ctrl + Spacebar : Turn the Chinese input method editor (IME) on or off Shift + F10 : Display the shortcut menu for the selected item Shift with any arrow key : Select more than one item in a window or on the desktop, or select text in a document Shift + Delete : Delete the selected item without moving it to the Recycle Bin first Right arrow : Open the next menu to the right, or open a submenu Left arrow : Open the next menu to the left, or close a submenu Esc : Stop or leave the current task Dialog box keyboard shortcuts : F4 : Display the items in the active list Ctrl + Tab : Move forward through tabs Ctrl + Shift + Tab : Move back through tabs Ctrl + number (number 1–9) : Move to nth tab Tab : Move forward through options Shift + Tab : Move back through options Alt + underlined letter : Perform the command (or select the option) that is used with that letter Spacebar : Select or clear the check box if the active option is a check box Backspace : Open a folder one level up if a folder is selected in the Save As or Open dialog box Arrow keys : Select a button if the active option is a group of option buttons File Explorer keyboard shortcuts : Alt + D : Select the address bar Ctrl + E : Select the search box Ctrl + F : Select the search box Ctrl + N : Open a new window Ctrl + W : Close the active window Ctrl + mouse scroll wheel : Change the size and appearance of file and folder icons Ctrl + Shift + E : Display all folders above the selected folder Ctrl + Shift + N : Create a new folder Num Lock + asterisk (*) : Display all subfolders under the selected folder Num Lock + plus (+) : Display the contents of the selected folder Num Lock + minus (-) : Collapse the selected folder Alt + P : Display the preview panel Alt + Enter : Open the Properties dialog box for the selected item Alt + Right arrow : View the next folder Alt + Up arrow : View the folder that the folder was in Alt + Left arrow : View the previous folder Backspace : View the previous folder Right arrow : Display the current selection (if it's collapsed), or select the first subfolder Left arrow : Collapse the current selection (if it's expanded), or select the folder that the folder was in End : Display the bottom of the active window

computer generations First Generation In the late 1940s and early 1950s (EDSAC, UNIVAC I, etc.) computers used vacuum tubes for their digital logic and liquid mercury memories for storage. See early memory, EDSAC and UNIVAC I. Second Generation In the late 1950s, transistors replaced tubes and used magnetic cores for memories (IBM 1401, Honeywell 800). Size was reduced and reliability was significantly improved. See IBM 1401 and Honeywell. Third Generation In the mid-1960s, computers used the first integrated circuits (IBM 360, CDC 6400) and the first operating systems and database management systems. Although most processing was still batch oriented using punch cards and magnetic tapes, online systems were being developed. This was the era of mainframes and minicomputers, essentially large centralized computers and small departmental computers. See punch card, System/360 and Control Data. Fourth Generation The mid to late-1970s spawned the microprocessor and personal computer, introducing distributed processing and office automation. Word processing, query languages, report writers and spreadsheets put large numbers of people in touch with the computer for the first time. See query language and report writer. Fifth Generation - The Future The 21st century ushered in the fifth generation, which increasingly delivers various forms of artificial intelligence (AI). More sophisticated search and natural language recognition are features that users recognize, but software that improves its functionality by learning on its own will change just about everything in the tech world in the future. See AI, machine learning, deep learning, neural network, computer vision, virtual assistant and natural language recognition.

3.Ms personal assistant- cortana 4.Not program lang - unix 5.Not Ms os- windows 9 6.Eniac - 1st generation 7.Task manager- ctrl + alt + del 8.Ms access - dbms 9.A7.b6-....- mac address 10. High lev lang to machine- compiler 11. Not semiconductor memory- floppy disk 12. Excel after z = AA 13. Which is not web browser 14.octal conversion 15. Eeprom erased by- electric charge 16.which ray not used for data Transfer- gamma 17.choose crt email address 18. Hexadecimal-16 19. 1gb=1024mb 20. Walkie talkie - half duplex 21.junk email (unwanted messages) - spamming __is the process of carrying out commands A) fetching B)storing C) decoding D) executing ✅D

🔵 🔷Hub- it works at the physical layer ♦️Switch- it works at the data link layer 🔶Repeater: it operates at the physical layer 🔷Router: it works at the network layer. 🔵 father of computer : Charles babbage 🔵Father of modern computer:Alan Turin 🔵father of super computer :Seymour Cray 🔵 invention 🔷First mechanical calculator - ✅Blaise Pascal 🔷punch card ✅Herman hollerith 🔵Basic architecture of computer developed by ✅Charles babbage 🔷Analytical engine ✅ Charles babbage 🔹1976 Cray 1: first super computer 🔷1991 Param: India's first super computer 🔵 computer for personal use is called? ✅micro computer 🔵 multiprogramming in 3rd generation 🔷Remote processing and time Sharing 3rd generation 🔷Discovery of IC - 3rd generation 🔵Microprocessor In 4th generation 🔵of the following which is the fastest A)CD-ROM B)RAM C)registers D) cache ✅C 🔵 first computer mouse was developed by ✅ Douglas Engelbart 🔵 commercial purpose language ✅COBOL 🔵complex scientific calculation ✅FORTRAN(first programming language) 🔵 simple language for beginners ✅BASIC 🔵1 billion byte =GB 🔵1million byte=MB 🔵1 thousand byte=KB 🔷 highest folder in any folder based hierarchy ✅root directory 🔷 cryptography is derived from the ____word ✅ Greek 🔵Types of software 🔷 system software 🔷 application software 🔹system software for operating system 🔹 application software for specific tasks 🔷 unauthorised intrusion into a computer or a network ✅ hacking 🔵 phishing ✅Phishing is the fraudulent attempt to obtain sensitive information such as usernames, passwords and credit card details by disguising oneself as a trustworthy entity in an electronic communication.[1][2] Typically carried out by email spoofing[3] or instant messaging,[4] it often directs users to enter personal information at a fake website which matches the look and feel of the legitimate site.[5] 🔵 malware ✅Malware (a portmanteau for malicious software) is any software intentionally designed to cause damage to a computer, server, client, or computer network.[1] Malware does the damage after it is implanted or introduced in some way into a target's computer and can take the form of directly executable code, scripts, so-called "active content" (Microsoft Windows), and other forms of data.[2] Some kinds of malware are largely referred to in the media as computer viruses, worms, Trojan horses, ransomware, spyware, adware, and scareware, 🔵father of computer science and Artificial intelligence ✅Alan Turing Smallest to largest 🔹Bit 🔹Byte 🔹Character 🔷Filed 🔷Record 🔷File 🔵Database 🔷zoom percentage in MS Excel ✅10% (tiny) to 400% (huge) ✳️By default, everything on screen is displayed at 100% 🔷first generation: vacuum tube 🔹 second generation: transistor 🔹Third generation: integrated circuit 🔹 fourth generation: microprocessor 🔷fifth generation: artificial intelligence 🔵 Microsoft word 🔷 Ctrl+W ✅close the current word document 🔷Ctrl+enter ✅page break 🔷A function inside another function is known as____ ✅nested function 🔹MROM Abbreviation ✅masked ROM 🔹PROM Is a read only memory that can be modified only once by a user 🔷web server error message 500 means? ✅ internet error/server-configuration problems 🔵Type of port 🔹Usb port 🔹PS/2 port 🔷Parallel port 🔷Serial port 🔷 process of sending data to a temporary storage area in the computer's memory is know as? ✅ Spooling 🔷The term computer is derived from which language? ✅Latin language 🔷margin that is added to the binding side of page when printing ✅ gutter margin 🔵____refers to an act of obtaining personal or stealing your personal information by simply watching what you type. ✅ shoulder surfing 🔵 repeatedly harashing another person online is termed as? ✅ cyberbullying 🔷FPI full form? ✅frames per inch 🔵 1.Gridline - page layout 2 Ms word page break- crtl + enter

🔵 🔷Hub- it works at the physical layer ♦️Switch- it works at the data link layer 🔶Repeater: it operates at the physical layer 🔷Router: it works at the network layer. 🔵 father of computer : Charles babbage 🔵Father of modern computer:Alan Turin 🔵father of super computer :Seymour Cray 🔵 invention 🔷First mechanical calculator - ✅Blaise Pascal 🔷punch card ✅Herman hollerith 🔵Basic architecture of computer developed by ✅Charles babbage 🔷Analytical engine ✅ Charles babbage 🔹1976 Cray 1: first super computer 🔷1991 Param: India's first super computer 🔵 computer for personal use is called? ✅micro computer 🔵 multiprogramming in 3rd generation 🔷Remote processing and time Sharing 3rd generation 🔷Discovery of IC - 3rd generation 🔵Microprocessor In 4th generation 🔵of the following which is the fastest A)CD-ROM B)RAM C)registers D) cache ✅C 🔵 first computer mouse was developed by ✅ Douglas Engelbart 🔵 commercial purpose language ✅COBOL 🔵complex scientific calculation ✅FORTRAN(first programming language) 🔵 simple language for beginners ✅BASIC 🔵1 billion byte =GB 🔵1million byte=MB 🔵1 thousand byte=KB 🔷 highest folder in any folder based hierarchy ✅root directory 🔷 cryptography is derived from the ____word ✅ Greek 🔵Types of software 🔷 system software 🔷 application software 🔹system software for operating system 🔹 application software for specific tasks 🔷 unauthorised intrusion into a computer or a network ✅ hacking 🔵 phishing ✅Phishing is the fraudulent attempt to obtain sensitive information such as usernames, passwords and credit card details by disguising oneself as a trustworthy entity in an electronic communication.[1][2] Typically carried out by email spoofing[3] or instant messaging,[4] it often directs users to enter personal information at a fake website which matches the look and feel of the legitimate site.[5] 🔵 malware ✅Malware (a portmanteau for malicious software) is any software intentionally designed to cause damage to a computer, server, client, or computer network.[1] Malware does the damage after it is implanted or introduced in some way into a target's computer and can take the form of directly executable code, scripts, so-called "active content" (Microsoft Windows), and other forms of data.[2] Some kinds of malware are largely referred to in the media as computer viruses, worms, Trojan horses, ransomware, spyware, adware, and scareware, 🔵father of computer science and Artificial intelligence ✅Alan Turing Smallest to largest 🔹Bit 🔹Byte 🔹Character 🔷Filed 🔷Record 🔷File 🔵Database 🔷zoom percentage in MS Excel ✅10% (tiny) to 400% (huge) ✳️By default, everything on screen is displayed at 100% 🔷first generation: vacuum tube 🔹 second generation: transistor 🔹Third generation: integrated circuit 🔹 fourth generation: microprocessor 🔷fifth generation: artificial intelligence 🔵 Microsoft word 🔷 Ctrl+W ✅close the current word document 🔷Ctrl+enter ✅page break 🔷A function inside another function is known as____ ✅nested function 🔹MROM Abbreviation ✅masked ROM 🔹PROM Is a read only memory that can be modified only once by a user 🔷web server error message 500 means? ✅ internet error/server-configuration problems 🔵Type of port 🔹Usb port 🔹PS/2 port 🔷Parallel port 🔷Serial port 🔷 process of sending data to a temporary storage area in the computer's memory is know as? ✅ Spooling 🔷The term computer is derived from which language? ✅Latin language 🔷margin that is added to the binding side of page when printing ✅ gutter margin 🔵____refers to an act of obtaining personal or stealing your personal information by simply watching what you type. ✅ shoulder surfing 🔵 repeatedly harashing another person online is termed as? ✅ cyberbullying 🔷FPI full form? ✅frames per inch 🔵 1.Gridline - page layout 2 Ms word page break- crtl + enter

🔵Three main components of a computer are - RAM, - Input/output devices - cpu 🔵 Three mains parts of the processor are - ALU -Control unit -registers 🔵 first punch card developed by - Herman hollerith(for US census) 🔵first punch card used by -joseph Maire 🔵The wave underline in ms-word document indicates spelling errors. ✅ Red 🔵The wave underline in ms-word document indicates Grammar errors ✅green 🔵what menu is selected to save or save as______ ✅file menu 🔵What menu is selected to print? ✅file menu 🔵file extensions are used in order to_____ ✅ identify the file type 📌Note: Microsoft Windows Vista was an windows OS for PC not Office Suit.

EXCEL 🖥 Complete List of MS Excel Shortcut Key 🖥 ================== Ctrl+A - Select All Ctrl+B - Bold Ctrl+C - Copy Ctrl+D - Fill Down Ctrl+F - Find Ctrl+G - Goto Ctrl+H - Replace Ctrl+I - Italic Ctrl+K - Insert Hyperlink Ctrl+N - New Workbook Ctrl+O - Open Ctrl+P - Print Ctrl+R - Fill Right Ctrl+S - Save Ctrl+U - Underline Ctrl+V - Paste Ctrl W - Close Ctrl+X - Cut Ctrl+Y - Repeat Ctrl+Z - Undo F1 - Help F2 - Edit F3 - Paste Name F4 - Repeat last action F4 - While typing a formula, switch between absolute/relative refs F5 - Goto F6 - Next Pane F7 - Spell check F8 - Extend mode F9 - Recalculate all workbooks F10 - Activate Menubar F11 - New Chart F12 - Save As Ctrl+: - Insert Current Time Ctrl+; - Insert Current Date Ctrl+" - Copy Value from Cell Above Ctrl+’ - Copy Formula from Cell Above Shift - Hold down shift for additional functions in Excel’s menu Shift+F1 - What’s This? Shift+F2 - Edit cell comment Shift+F3 - Paste function into formula Shift+F4 - Find Next Shift+F5 - Find Shift+F6 - Previous Pane Shift+F8 - Add to selection Shift+F9 - Calculate active worksheet Shift+F10 - Display shortcut menu Shift+F11 - New worksheet Shift+F12 - Save Ctrl+F3 - Define name Ctrl+F4 - Close Ctrl+F5 - XL, Restore window size Ctrl+F6 - Next workbook window Shift+Ctrl+F6 - Previous workbook window Ctrl+F7 - Move window Ctrl+F8 - Resize window Ctrl+F9 - Minimize workbook Ctrl+F10 - Maximize or restore window Ctrl+F11 - Inset 4.0 Macro sheet Ctrl+F1 - File Open Alt+F1 - Insert Chart Alt+F2 - Save As Alt+F4 - Exit Alt+F8 - Macro dialog box Alt+F11 - Visual Basic Editor Ctrl+Shift+F3 - Create name by using names of row and column labels Ctrl+Shift+F6 - Previous Window Ctrl+Shift+F12 - Print Alt+Shift+F1 - New worksheet Alt+Shift+F2 - Save Alt+= - AutoSum Ctrl+` - Toggle Value/Formula display Ctrl+Shift+A - Insert argument names into formula Alt+Down arrow - Display A Autocomplete list Alt+’ - Format Style dialog box Ctrl+Shift+~ - General format Ctrl+Shift+! - Comma format Ctrl+Shift+@ - Time format Ctrl+Shift+# - Date format Ctrl+Shift+$ - Currency format Ctrl+Shift+% - Percent format Ctrl+Shift+^ - Exponential format Ctrl+Shift+& - Place outline border around selected cells Ctrl+Shift+_ - Remove outline border Ctrl+Shift+* - Select current region Ctrl++ - Insert Ctrl+- - Delete Ctrl+1 - Format cells dialogue​ box Ctrl+2 - Bold Ctrl+3 - Italic Ctrl+4 - Underline Ctrl+5 - Strikethrough Ctrl+6 - Show/Hide objects Ctrl+7 - Show/Hide Standard toolbar Ctrl+8 - Toggle Outline symbols Ctrl+9 - Hide rows Ctrl+0 - Hide columns Ctrl+Shift+( - Unhide rows Ctrl+Shift+) - Unhide columns Alt or F10 - Activate the menu Ctrl+Tab - In toolbar: next toolbar Shift+Ctrl+Tab - In toolbar: previous toolbar Ctrl+Tab - In a workbook: activate next workbook Shift+Ctrl+Tab - In a workbook: activate previous workbook Tab - Next tool Shift+Tab - Previous tool Enter - Do the command Shift+Ctrl+F - Font Drop Down List Shift+Ctrl+F+F - Font tab of Format Cell Dialog box Shift+Ctrl+P - Point size Drop Down List

Window = स्टार्ट मेनू window+BREAK = सिस्टम प्रोपर्टी window+D = डेस्कटॉप window+M = मिनिमाईज़ आल window+Shift+M = रिस्टोर आल window+E = माय कम्प्युटर window+F = सर्च CTRL+ window+F = सर्च कम्प्युटर window+ L = सर्च कम्प्युटर या स्विच यूजर window+R = रन डायलोग बॉक्स window+U = यूटिलिटी मेनेजर Windows Explorer END = एक्टिव विंडो का बाटम HOME = एक्टिव विंडो का टॉप NUM LOCK+ * = सेलेक्टेड फोल्डर के सभी सबफोल्डर NUM LOCK+ numeric keypad (+) = सेलेक्टेड फोल्डर का कंटेंट NUM LOCK+numeric keypad (-) = कोलेप्स सेलेक्टेड फोल्डर LEFT ARROW = कोलेप्स सेलेक्शन RIGHT ARROW = डिस्प्ले कोलेप्सड सेलेक्शन Windows Mediaplayer ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ ctrl+o ओपन ctrl+u ओपन url ctrl+w क्लोस ctrl+n नई प्लेलिस्ट ctrl+d एडिट कर्रेंट प्लेलिस्ट ctrl+1 फुल मोड़ ctrl+2 स्किन मोड़ alt+enter फुल स्क्रीन f 5 रिफ्रेश ctrl+p प्ले/ पाउस ctrl+s स्टॉप ctrl+shift+g फास्ट प्ले ctrl+shift+n नोर्मल प्ले ctrl+shift+s स्लो प्ले ctrl+b पिछला ctrl+f अगला ctrl+shift+b रिवाईंड ctrl+shift+f फास्ट फारवर्ड ctrl+h शफल ctrl+t रिपीट ctrl+shift+c केप्शन & subtitle f10 वोल्यूम अप f 9 वोल्यूम डाउन f 8 म्यूट ctrl+e इजेक्ट विंडोस कीबोर्ड शोर्टकट ≡≡≡≡≡≡≡≡≡≡≡≡≡≡ CTRL+C = कॉपी CTRL+X = कट CTRL+V = पेस्ट CTRL+Z = अन्डू DELETE = डिलीट SHIFT+DELETE = डिलीट (बिना रिसाईकिल बिन रखे) F2 = रिनेम CTRL+RIGHT ARROW = कर्सर को अगले शब्द के शुरू में रखता है CTRL+LEFT ARROW = कर्सर पिछले शब्द के शुरू में रखता है. CTRL+DOWN ARROW = कर्सर को अगले पैराग्राफ के शुरू में रखता है . CTRL+UP ARROW = कर्सर को पिछले पैराग्राफ के शुरू में रखता है. CTRL+A = सेलेक्ट आल F3 = सर्च ALT+ENTER = सेलेक्टेड आइटम की प्रोपर्टी ALT+F4 = एप्लीकेशन विंडो को बंद करता है ALT+SPACEBAR = एक्टिव विंडो का शोर्टकट मेनू CTRL+F4 = डाकुमेंट विंडो को बंद करता है ALT+TAB = खुले हुए आइटम्स के बीच स्विच करता है ALT+ESC = Cycle जिस क्रम में विंडोस खुले F4 = एड्रेसबार लिस्ट CTRL+ESC = स्टार्ट मेनू F10 = एक्टिवेट मेनूबार F5 = रिफ्रेश एक्टिव विंडो . BACKSPACE = बेक ESC = केंसिल कर्रेंट टास्क SHIFT जब DVD इन्सर्ट हो = ऑटोरन को रोकता है TAB = फोकस आगे बढाना SHIFT+TAB = फोकस पीछे करना F1 = हेल्प. Window = स्टार्ट मेनू window+BREAK = सिस्टम प्रोपर्टी window+D = डेस्कटॉप window+M = मिनिमाईज़ आल window+Shift+M = रिस्टोर आल window+E = माय कम्प्युटर window+F = सर्च CTRL+ window+F = सर्च कम्प्युटर window+ L = सर्च कम्प्युटर या स्विच यूजर window+R = रन डायलोग बॉक्स window+U = यूटिलिटी मेनेजर Windows Explorer END = एक्टिव विंडो का बाटम HOME = एक्टिव विंडो का टॉप NUM LOCK+ * = सेलेक्टेड फोल्डर के सभी सबफोल्डर NUM LOCK+ numeric keypad (+) = सेलेक्टेड फोल्डर का कंटेंट NUM LOCK+numeric keypad (-) = कोलेप्स सेलेक्टेड फोल्डर LEFT ARROW = कोलेप्स सेलेक्शन RIGHT ARROW = डिस्प्ले कोलेप्सड सेलेक्शन Windows Mediaplayer ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ ctrl+o ओपन ctrl+u ओपन url ctrl+w क्लोस ctrl+n नई प्लेलिस्ट ctrl+d एडिट कर्रेंट प्लेलिस्ट ctrl+1 फुल मोड़ ctrl+2 स्किन मोड़ alt+enter फुल स्क्रीन f 5 रिफ्रेश ctrl+p प्ले/ पाउस ctrl+s स्टॉप ctrl+shift+g फास्ट प्ले ctrl+shift+n नोर्मल प्ले ctrl+shift+s स्लो प्ले ctrl+b पिछला ctrl+f अगला ctrl+shift+b रिवाईंड ctrl+shift+f फास्ट फारवर्ड ctrl+h शफल ctrl+t रिपीट ctrl+shift+c केप्शन & subtitle f10 वोल्यूम अप √√√√√√√√√√√√√√√√√√√√√ ==================== computer-awareness-digest-for-fci-2019-eng-66.pdf 🔵Data representation and number system 🔷binary memory 🔹bit: smallest unit of computer 🔹Nibble: 4bit=1 nibble 🔹Byte: 8bits =2nibble=1byte 🔶🔷Binary numbers 0 and 1 Total 0 to 9 digits so, base is 10 🔶🔷Octal number system Total 0 to 7 number so, base is 8 🔶🔷Hexadecimal number system Total 0 to 9+ A to F alphabet So,base is 16 Code 🔵ASCII code : American standard code for information interchange In ASCII character is represented by 7 bits 🔵EBCDIC code : Extended binary coded decimal interchange code Character is represented 8bits

Questions Asked in Computer in FCI 1. How many possible values of a Nibble {16} 2. Latest version of HTML {HTML 5} 3. What is not a output device {Joystick} 4. What is not a feature of MS excel {ADRS} (address) 5. Not A product of Microsoft {Photoshop) 6. What is not a windows version {Windows 9} 7. Which software runs first after power up {Operating System} 8. Not a mail provider {Whatsapp} 9. Binary conversion {38} 10. Total number of Layers in OSI {7} 11. What is a Internet protocol {TCP/IP} 12. Microsoft Assistant {Cortana} 13. Which is not a serch engine {Microsoft edge} 14. Which is a low level language {Machine Language} 15. Full form of OMR {Optical mark recognition} 16. Ctrl+M is a shortcut key in Powerpoint {Add a new slide} 17. Sortcut key to Highlight Column {Ctrl + space} 18. Which one is a Translater {Interpreter} 19. Which alphabet is not used in hexadecimal number? {G} 20. Unauthorized copying of copyrigt software {Piracy}

Computer *☔कम्प्यूटर एक इलेक्ट्रानिक मशीन है । इसका हिंदी नाम संगणक है । *☔आधुनिक कम्प्यूटर का पिता चार्ल्स बैवेज को कहते हैं । *☔कैलकुलेटर का आविष्कार पास्कल ने किया था । *☔भारत मे निर्मित पहला कम्प्यूटर सिद्धार्थ था । *☔सबसे बडा कम्प्यूटर नेटवर्क इंटरनेट है । *☔भारत का प्रथम कम्प्यूटर बैंगलूर के प्रधान डाक घर मे लगाया गया । *☔इंटरनेट का प्रथम प्रयोग अमेरिका के रक्षा अनुसंधान मे हुआ । *☔कम्प्यूटर मे प्रयुक्त होने वाला IC चिप्स सिलिकान का बना होता है । *☔भारत का सिलिकान वैली बैंगलोर को कहते हैं । *☔कम्प्यूटर का मस्तिष्क सी.पी.यू. को कहते हैं । *☔कम्प्यूटर अपने परिणाम को भविष्य हेतु मैमोरी मे सुरक्षित रखता है । *☔IC का पूर्ण रूप इंटरग्रेटेड सर्किट होता है । *☔IBM का पूर्ण रूप इंटरनेशनल बिजनेस मशीन है । *☔WWW का पूर्ण रूप वर्ल्ड वाईड वेव है । *☔LAN का पूर्ण रूप लोकल एरिया नेटवर्क है । *☔WAN का पूर्ण रूप वाइड एरिया नेटवर्क है । *☔RAM का पूर्ण रूप रैंडम एक्सिस मेमोरी है । *☔ROM का पूर्ण रूप रिड ओनली मेमोरी है । *☔CD का पूर्ण रूप काम्पैक्ट डिस्क होता है । *☔VDU का पूर्ण रूप विजुअल डिस्प्ले यूनिट है । *☔HTML का पूर्ण रूप हायपर टेक्ट मार्कप लांग्वेज है । *☔HTTP का पूर्ण रूप हायपर टेक्ट ट्रांसफर प्रोटोकाल है । *☔ALU का पूर्ण रूप अर्थमेटिक लाजिकल यूनिट है । *☔CPU का पूर्ण रूप सेंट्रल प्रोसेसिंग यूनिट है । *☔CU का पूर्ण रूप कंट्रोल यूनिट होता है । *☔COBOL का पूर्ण रूप कामन बिजनेस ओरिएंटेड लांग्वेज है । *☔DOS का पूर्ण रूप डिस्क आपरेटिंग सिस्टम है । *☔E MAIL का पूर्ण रूप इलेक्ट्रानिक मेल होता है । *☔FAX का पूर्ण रूप फार अवे झेरोक्स होता है । *☔कम्प्यूटर को बंद करने की प्रक्रिया को शट डाउन तथा चालू करने की प्रक्रिया को बुट अप कहते है । *☔मानिटर का अन्य नाम VDU है । *☔स्टैंडर्ड की बोर्ड मे 101 बटन तथा 12 फंक्शन कीज होती हैं । *☔चुम्बकीय डिस्क पर आयरन आक्साइड की परत होती है । *☔बाइनरी नम्बर प्रणाली मे 0 तथा 1 का प्रयोग होता है । *☔फ्लापी डिस्क की साइज 3.25” तथा 5.25” होती है । *☔कम्प्यूटर नेटवर्क से सम्पर्क जोडने की प्रक्रिया को ‘लाग इन’ तथा सम्पर्क तोडने को ‘लाग आउट’ कहते हैं । *☔आपरेटिंग सिस्टम मे RAM का प्रयोग किया जाता है । *☔कम्प्यूटर मे प्रोग्राम की सूची को मेंयू कहते हैं । *☔मोडेम टेलीफोन लाइन पर काम करता है । *☔कम्प्यूटर के डम्प होने का कारण वाइरस होता है । *☔कम्प्यूटर वाइरस एक डिस्ट्रकटिव प्रोग्राम होता है । *☔कम्प्यूटर का भौतिक बनावट हार्डवेयर कहलाता है । *☔हार्ड डिस्क की गति RPM. मे मापी जाती है । *➖8 बिट =* 1 बाइट *➖1024 बाइट =* 1 किलो बाइट *➖ 1024 किलो बाइट =* 1 MB *➖ 1024 MB =* 1 GB *☔IBM (इंटर नेशनल बिजनेस मशीन) एक कम्प्यूटर कम्पनी है । *☔कम्प्यूटर का मुख्य पृष्ट डेस्क टाप कहलाता है । *☔कम्प्यूटर के क्षेत्र मे महान क्रांति 1960 ई. मे आयी । *☔DOS और WINDOWS एक प्रकार के आपरेटिंग सिस्टम हैं । *☔माउस,की बोर्ड, जायस्टिक, स्कैनर, तथा लाइट पेन इनपुट डिवाइस के उदाहरण हैं । *☔प्रिंटर, स्पीकर, तथा मानिटर आउटपुट डिवाइस हैं । *☔इंटरनेट पर भेजा जाने वाला संदेश ई मेल कहलाता है । ☔उच्चस्तरीय भाषा से मशीनी भाषा मे रूपांतरण सोर्स प्रोग्राम द्वारा होता है । अंग्रेजी के समान उच्चस्तरीय भाषा कोबोल है । #प्रोग्राम हेतु विकसित प्रथम भाषा फोरट्रान है । #उच्चस्तरीय भाषा का अनुवाद निम्न स्तरीय भाषा मे कम्पाइलर करता है । #उच्चस्तरीय भाषा का विकास IBM ने किया । #फोरट्रान,कोबोल, बेसिक, अल्गोल, पास्कल आदि उच्चस्तरीय भाषाएं हैं । #मदर बोर्ड एक सर्किट बोर्ड है, इसमे सी.पी.यू. जोडे जाते हैं । #हार्ड डिस्क मे कम्प्यूटर प्रोग्रामों को स्टोर किया जाता है । #कम्प्यूटर तीन प्रकार के होते हैं- डिजिटल, एनालाँग, एवं हाइब्रिड । #असेम्बलर ,असेम्बली भाषा को यंत्र भाषा मे बदलता है ।