3 KEYBOARD SHORTCUTS AND MOUSE

The .mouse and keyboard are your PC’s eyes and ears, without them you could not execute commands or input text.

❖ Introduction to Keyboard • A keyboard is an input device used to enter characters and functions into the computer system by pressing buttons, or keys. It is the primary device used to enter text. • A keyboard typically contains keys for individual letters, numbers and special characters, as well as keys for specific functions. A standard keyboard has 104 keys.

❖ Keyboard Shortcuts • Shortcut keys provide an easier and usually quicker method of navigating and executing commands in computer software programs. • These are the keyboard shortcuts to help you use your computer easily. Press this key To do this

Ctrl + N Create a new document

Ctrl + O Open an existing document

Ctrl + S Save a document

Ctrl + P Print a document

Ctrl + W/F4 Close the active document

Ctrl + Z Undo the selected item

Ctrl + Y Redo the selected item

Ctrl + X Cut the selected item

Ctrl + C Copy the selected item

Ctrl + V Paste the selected item

Ctrl + A Select all items in a document

Ctrl + B Bold

Ctrl + I Italic

Ctrl + U Underline

Ctrl + L Align text left

Ctrl + E Align text center

Ctrl + R Align text right

Ctrl + Esc Open the start menu

Ctrl + [ Decrease font size

Ctrl + ] Increase font size

Ctrl + J Justify text

Alt + F4 Close the active program or application

F1 Display help

F2 Rename the selected item

F3 Search for a file or folder

F5 Refresh

F12 Save the document as a new file

Esc Stop or leave the current task

❖ Mouse • A mouse is a hand held pointing device used to position a cursor on the computer screen. This allows the user to select items stored on a computer and, subsequently, perform actions on those items. • There are different types of mouse, such as, wireless, optical, trackball, mechanical. • The standard mouse has two buttons and a scroll wheel in the middle.

Left Mouse Button →The left mouse button is the main mouse button, and is used for common tasks such as selecting objects, opening or closing windows by clicking, double-clicking or dragging actions. Right mouse button→ The right mouse button is often used to open contextual menus, which are pop-up menus that change depending where you click. Scroll wheel→ The mouse scroll wheel is located at the middle of the left and right buttons of the mouse. It is commonly used for easy scrolling up and down through a document or page.

Double click→ To release the left mouse button after pressing it twice quickly is called double click. A double click opens the selected item.

Right click →To release the right button after pressing it once, is called right-click. It displays a list of properties of the selected item.

Scrolling→ Place your index finger on the scrolling wheel, roll the wheel forward and backward. It helps moving the pages up and down.

Drag and Drop→ Drag and drop means to select an item and move it to another location on the computer. This is how to drag and drop an item:- Step 1: Place the pointer over an item on the screen. Step 2: Press and hold down the left mouse button. Step 3: Now move the pointer to the place where you want to place the item (drag). Step 4: Release the button and you will see that the item has moved to a new place.

EXERCISE

Q1. Multiple choice questions-

(i) Standard keyboard has ______keys.

(a) 104 (b) 100 (c) 102 (d) 80

(ii) A keyboard contains keys for individual letters, numbers and special characters as well as keys for ______.

(a) Letters (b) numbers (c) Specific functions (d) Characters

(iii) Shortcut keys makes the task ______.

(a) Hard (b) Easy (c) typical (d) Slow

(iv) A mouse is a ______.

(a) Pointing Device (b) Output Device (c) storage Device (d) screen

Q2. Fill in the blanks-

(i)The mouse and keyboard are the ______and ______of the PC.

(ii) Keyboard is the ______used to enter text.

(iii) The standard mouse has ______buttons and a scroll ______in the middle.

(iv) ______key is used to refresh the computer system.

(v) A mouse is used to position a cursor on the ______.

Q3. Write shortcut keys of the following-

(i) create a new Documents ______

(ii) Cut the selected item ______

(iii) Save a Document ______

(iv) Undo the selected item ______

(v) Copy the selected item ______

(vi) Paste the selected item ______

(vii) Refresh ______

(viii) Stop or leave the current task ______

Q4. Draw and label the Pictures of mouse.

Q5. Label the following in the keyboard-

(i)Spacebar (ii)Backspace key (iii)Delete key

(iv)Alphabet key (v)Number key

Q6. Write the answer of the following question-

(i)What is mouse?

(ii) How many buttons a mouse have?

(iii) What do you mean by Keyboard shortcuts?

(iv) What is keyboard?

(v) What is the use of Scroll wheel in the mouse?

(vi) What is Drag and Drop?

Q7. Write the function of the following-

(i)Left mouse button

(ii)Right mouse button

(iii)Scroll wheel

(iv)Double click

4 MICROSOFT OFFICE . MS-Word Microsoft word is an application used to create, edit and format documents. It consists of various tools to create, open, save, print, edit and format the document in quick and easy manner. In short, Microsoft Word is written as MS-Word. ➢ Starting MS-Word To start MS-Word, Start>>All programs>>Microsoft office>>Microsoft office word2007 ❖ Creating a new document 1. Click on Office button->new. 2. New document dialog box will appear. 3. Select the blank document. 4. Select create. Or Shortcut key to create a new document is- Ctrl+N. ❖ Saving a document 1. Click on Office button->Save. 2. Save as dialog box will appear. 3. Locate the folder in which you wish to save your file. 4. Type the file name in file name box. 5. Click on save button. Or Shortcut key to save a file is Ctrl+S. ❖ Opening a document 1. Click the office button->Open. 2. Open dialog box will appear. 3. Locate the folder in which you had saved the file. 4. Select the file. 5. Click on open. Or Shortcut key to open a document is Ctrl+O. ❖ Closing a document 1. Click on the Office button->Close. If current file is not saved, a message box will appear, asking you to save the file. 2. Click on Yes to save the file. Click on No to close the document without saving. Or Shortcut key to close a document is Ctrl+W. ❖ Printing a document 1. Click on Office button->Print. 2. Print dialog box will appear. 3. Make selections such as number of copies, pages to be printed in their respective areas. 4. Click on OK to confirm the selections made and print the document. Or Shortcut key to print a document is Ctrl+P. ➢ Editing a text Editing is a process of inserting or deleting or copying or moving or searching and replacing a block of text in an existing document. ❖ Moving a text Moving a text means to shift the selected text from one location to other location in the same document. To apply moving, perform following steps- 1. Select the text you want to move. 2. Click on Cut button in the clipboard group in home tab. 3. Position cursor to the location where the text is to be moved. Or Shortcut key to cut a document is Press Ctrl+X. 4. Click on paste button in the clipboard group in home tab.

Or Shortcut key to paste a document is Press Ctrl+V. ❖ Copying a text Copying means to prepare a duplicate copy of the selected text and displayed it at some other location in the same document or in some other document. To apply moving, perform following steps- 1. Select the text that you want to copy. 2. Click on Copy button in the Clipboard group in Home tab. Or Shortcut key to copy a document is Press Ctrl+C. 3. Position cursor to the location where the text is to be copied. 4. Click on paste button in the clipboard group in Home tab. Or Shortcut key to paste a document is Press Ctrl+V. ❖ Deleting a document Deleting a text means to remove or erase the text. For this, select the text and press delete key. Selected text will be deleted. ❖ Undo and Redo Word remembers all the changes that you apply in a document. If you make a change by mistake, it allows you to cancel that change. This facility is known as Undo. If some Undo is applied by mistake, it allows to reverse the action through a facility Redo. 1. Select the text and erase. 2. Click on Undo or redo action. NOTE- 1.Shortcut key to undo the text is Ctrl+Z. 2.Shortcut key to redo the Text is Ctrl+Y.

EXERCISE 1.Multiple choice questions- (i) Using MS-Word you can do______. (a) Bold a text (b) Italic a text (c) Underline a text (d) All of these

(ii) Which is not a type of alignment______. (a) Right alignment (b) Left alignment (c) Bottom alignment (d) Center alignment (iii)Vertical distance between the lines of the document is called ______. (a) Line margin (b) Line boundary (c) Line spacing (d) All of these (iv)Keyboard shortcut key to select entire document is______. (a) Ctrl+A (b) Ctrl+C (c) Ctrl+V (d) Ctrl+X (v)A duplicate copy of text is created by______. (a) Copy and paste (b) Save and paste (c) Rename and Paste (d) Paste and paste (vi)Keyboard shortcut key to Copy a text is ______. (a) Ctrl+X (b) Ctrl+V (c) Ctrl+A (d) Ctrl+C 2. Fill in the blanks- (i) ______is an application software used to create, edit and format the document. (ii) Redo command is used to cancel the effect of ______. (iii) Keyboard shortcut key for paste is ______. (iv) ______is a process of making certain text bold or italic. (v) clicking the ______tab displays the font group. (vi) Right alignment specify the ______margin. 3.Match the following- (i) Undo a. To cancel Undo effect (ii) Ctrl+Home b. Create a new document (iii) Ctrl+N c. To cancel the recent action (iv) Redo d. Shortcut key for Undo (v) Ctrl+Z e. To move cursor to the beginning of document 4. Write the function of the following shortcut keys-

(i) Ctrl+Home ______

(ii) Ctrl+End ______

(iii) Pg Up ______

(iv) Pg Down ______

(v) Ctrl+B ______

(vi) Ctrl+C ______

(vii) Ctrl+Z ______

(viii) Ctrl+v ______

(ix) Ctrl+X ______

(x) Redo ______

(xi) F7 ______

(xii) Ctrl+E ______

(xiii) Ctrl+L ______

(xiv) Ctrl+R ______

(xv) Ctrl+N ______

5. Write the answer of the following- (i) What is editing?

(ii) Write all the steps to copy a text?

(iii) What is Undo and Redo?

(iv) How to delete a text?

(v) Distinguish between moving and copying a text?

(vi) Write the steps to open the MS-Paint?

5 TYPES OF COMPUTER

Computers. differ based on their data processing abilities, purpose, size and offering different services. can be as big as occupying a large building and as small as a or a in mobile. The four basic types of computers are :- 1. 2. 3. 4.

❖ Supercomputer • The powerful computers in terms of performance and data processing are the . These are specialized and task specific computers used by large organizations. • Some popular supercomputers are: ➢ IBM’s Sequoia and Mira in United States ➢ Fujitsu’s K Computer in Japan ➢ IBM’s Super MUC in Germany ➢ NUDT Tianhe-1A in China

• The features of supercomputers are : ➢ Largest, fastest, most powerful, and most expensive computers made ➢ Highly complex calculation ➢ Used in weather forecasting, seismic analysis and nuclear weapons testing ➢ It’s speed is measured in nanoseconds and gigaflops ➢ Used for scientific applications and space explorations

❖ Mainframe Computers • Mainframes are not as powerful as supercomputers, but they are quite expensive. Many large firms and government organizations uses Mainframes to run their business operations.

• Popular Mainframe Computers are: ➢ Fujitsu’s ICL VME ➢ Hitachi’s Z800

• The features of mainframe computers are : ➢ Large computer in terms of price, power and speed ➢ Less powerful then supercomputer ➢ Specially designed to perform multiple tasks for multiple users ➢ Accommodated in large air conditioned rooms because of its size ➢ Used by banks, educational institutions and insurance companies to store data

❖ • Minicomputers are also called as ‘Midrange Computers’. These are small machines and not designed for a single user. Individual departments of a large company or organizations use it for specific purposes. • Popular Minicomputers are: ➢ K-202 ➢ SDS-92 ➢ IBM Midrange computers ➢ Texas Instrument TI-990 • The features of minicomputers are : ➢ Used in manufacturing for process control ➢ Used for data management ➢ Used as communication tools in large systems, to make adjustments in central computer or processor

❖ • Any type of computer or device that has a microprocessor chip is a microcomputer. The microcomputers are the widely used and the fastest growing computers. • The different types of Microcomputers are: ➢ ➢ Laptop computer ➢ Tablet PC’s ➢ Smart phones ➢ Personal digital assistant

• The features of microcomputers are : ➢ Cheapest among the other three types of computers ➢ Specially designed for general usage like entertainment, education and work purposes ➢ Apple, Samsung, Dell and Sony are some well known manufacturers ➢ Used for data management

EXERCISE

1. Multiple choice questions-

(i) There are ______basic types of computer.

(a) four (b) Three (c) Seven

(ii) The powerful computers in terms of performance and data processing are the ______.

(a) Minicomputer (b) supercomputers (c) Microcomputers

(iii) Mini computers are also called ______.

(a) Midrange computer (b) High range computer (c) Supercomputer

(iv) Desktop computer is a type of ______.

(a) Micro computer (b) Mini computer (c) Mainframe computer

(v) Many large firms and government organization uses______to run their business operations.

(a) Super computer (b) Mainframe computer (c) Mini computer

2. Fill in the blanks-

(i) Computer can be as big as occupying a large ______as small as a ______.

(ii)The powerful computers in terms of ______are the supercomputers.

(iii) The super computers are largest, fastest, most powerful and most ______computer.

(iv) Mini computers are small machines and not designed for a ______.

(v) ______are the cheapest among the other three types of computers.

(vi) Mainframe computers are quite ______.

3. Answer the following question-

(i) What are super computers?

(ii) What type of computers are also known as midrange computers?

(iii) Write any two features of mainframe computer?

(iv) Which is the cheapest computer among all the four types of computer?

(v) Which type of computers used in banks?

6 SYSTEM UTILITIES

Microsoft Windows provides various useful tools or software that can be used as when they are required. In order to access these tools go to : Start→ All Programs→Accessories. Some useful system utilities of computer are:-- , Date and time, On –Screen Keyboard, Text editor and Task manager.

❖ On-Screen Keyboard Sometimes it happen that your keyboard is not working. In such case you can use On- Screen keyboard option on the computer. You can use your mouse to click the keys of the On – Screen keyboard to enter text. • The steps for using On-Screen keyboard are:-- Click Start menu → select All Programs → Accessories →Ease of Access →On-Screen keyboard.

❖ Calculator Calculator is also a tool that can be accessed on the screen to do mathematical calculations. • The steps for using Calculator are:-- Click Start menu→ All Programs →Accessories → Calculator.

❖ Date and Time The date and time appears on the taskbar, which is situated at the bottom of the desktop. • The steps to change the date and time are :-- Step 1 → Click the date and time appearing on the right bottom corner. Step 2 → Select the option of Change Date and Time setting Step 3 → Change the date and time manually Step 4 → Click OK.

❖ Task Manager This tool shows the number of applications running on your computer. It helps in closing a program not only when the program stop responding but also when it is functioning properly. • The steps to end the task are:- Step 1→ Right click the Taskbar. Step 2→Select start Task Manager.

❖ Text Editor

Text editor is another tool that we use to write stories and essays.

❖ Magnifier You can magnify the content of the screen by using Magnifier tool that can be accessed under Ease of Access of Accessories. • The steps to open the magnifier tool are:- •Click Start menu → select All Programs → Accessories →Ease of Access →Magnifier.

EXERCISE

1. Multiple choice questions-

(i) Calculator is also a ______that can be accessed on the screen to do mathematical calculation.

(a) Tool (b) file (c) folder

(ii) ______operating system provides various useful tools or software that can be used as when they are required.

(a)Microsoft window (b) calculator (c) on-screen keyboard

(iii) The first step to end the task bar is ______. (a) Select start taskbar (b) Right click the taskbar (c) click on

(iv) You can magnify the content of the screen by using ______that can be accessed under Ease of Access of Accessories.

(a) Task manager (b) Calculator (c) Magnifier tool

(v) Calculator is a ______of computer.

(a) Screen (b) System utility (c) Application 2. Fill in the blanks-

(i) The steps for using on-screen keyboard are-

Click start menu select all programs ______ease of access On-screen keyboard.

(ii) ______shows the number of application running on your computer.

(iii) The date & time appears on the taskbar, which is situated at the bottom of the ______.

(iv) There are ______steps for using calculator.

(v) Sometimes when keyboard is not working we can use the ______. 3. Write the answer of the following questions-

(i) What is on-screen keyboard? (ii) What is a Microsoft window? (iii) Write the steps for using calculator? (iv) How to change the date and time of the computer screen? (v) Write the steps to open magnifier tool?