1 / 38

Input Devices

System Unit. Output Devices. Input Devices. Storage Devices. slide 1. Computer System. Examples?. slide 2. Primary Input Devices. Keyboard Mouse. slide 3. Uses Of Keyboard. Enter Data Alphabets Numbers Issue Commands. slide 4. Keyboards. slide 5. Parts of Keyboard. Status

renata
Download Presentation

Input Devices

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. System Unit Output Devices Input Devices Storage Devices slide 1 Computer System Examples?

  2. slide 2 Primary Input Devices • Keyboard • Mouse

  3. slide 3 Uses Of Keyboard • Enter Data • Alphabets • Numbers • Issue Commands

  4. slide 4 Keyboards

  5. slide 5 Parts of Keyboard Status Indicators Numeric Keypad Cursor Control Keys Standard Keyboard

  6. slide 6 Standard Keyboard Standard keyboards of different brands look alike.

  7. slide 7 Standard Keyboard Alphabetic Keys are arranged like those on a typewriter.

  8. slide 8 Standard Keyboard Numeric Keys (Number Row)

  9. slide 9 Standard Keyboard

  10. slide 10 Standard Keyboard Tab • Advances cursor to the next tab stop • Capitalise all the alphabets typed • Not produce the top symbol on keys that contain two symbols, eg, number row Caps Lock

  11. slide 11 Standard Keyboard • Hold down the Shift Key to capitalise the alphabets typed • Produce the top symbol on keys that contain two symbols Shift

  12. slide 12 Standard Keyboard Backspace Key deletes one character to the left of the cursor.

  13. slide 13 Standard Keyboard • Enter Key • Advances the insertion point to the next line • Used to execute a command

  14. slide 14 Standard Keyboard

  15. slide 15 Standard Keyboard Ctrl Alt • Used in conjunction with another key to expand the functionality of the keyboard • Depends on the software being used

  16. slide 16 Standard Keyboard

  17. slide 17 Standard Keyboard Esc • Cancels an operation Function Keys • Are numbered and assigned different functions in different software packages • Can save keystrokes

  18. slide 18 Numeric Keypad • Numbers can be keyed in by use of • Numeric Row of Standard Keyboard • Numeric Keypad

  19. slide 19 Numeric Keypad Permits rapid numeric data entry

  20. slide 20 Numeric Keypad If a key has two symbols, it serves two functions: (1) numeric key (2) cursor control key Switch between 2 functions by use of Num Lock key

  21. slide 21 Numeric Keypad • When Num Lock is pressed, the numeric keypad is in numeric mode and produces numbers. • Num Lock light is on.

  22. slide 22 Numeric Keypad • When Num Lock is pressed again, the numeric keypad turns to cursor control mode and moves the cursor in the direction indicated by the arrows. • Num Lock light is off.

  23. slide 23 Toggle Keys • Switches back and forth between two modes • Num Lock, Cap Lock and Scroll Lock

  24. slide 24 Toggle Keys - Cap Lock • Switches between uppercase mode and lowercase mode • When Cap Lock is pressed, user toggles into uppercase mode. • When Cap Lock is pressed again, user toggles back into lowercase mode.

  25. slide 25 Toggle Keys - Scroll Lock • The function of the Scroll Lock key depends on the software being used. • It is rarely used with today’s software.

  26. slide 26 Status Indicators Status Indicators show the status of each toggle key: Num Lock, Caps Lock and Scroll Lock.

  27. slide 27 Status Indicators Scroll Lock Num Lock Caps Lock

  28. slide 28 Cursor Control Keys (2) (1)

  29. slide 29 Cursor Control Keys 2 sets of Cursor Control Keys: (1) Located between Standard Keyboard and Numeric Keypad (2) When the Numeric Keypad is in cursor control mode

  30. slide 30 Cursor Control Keys Arrow Keys

  31. slide 31 Cursor Control Keys • Arrow Keys • Select options from a menu • Move cursor up, down, left and right • Delete Key • Deletes the character at the cursor position

  32. slide 32 Cursor Control Keys • Insert Key • A toggle key • Switches between insert mode and typeover mode • Insert mode allows additional text to be inserted. • Typeover mode makes the new text type over the existing text.

  33. slide 33 Cursor Control Keys • Home Key • Moves cursor to the beginning of a line or the beginning of a document, depending on the software being used. • End Key • Moves cursor to the end of the line or the end of a document, depending on the software being used.

  34. slide 34 Cursor Control Keys • Page Up Key • Displays the previous screen of information • Page Down Key • Displays the next screen of information

  35. slide 35 Other Keys

  36. slide 36 Other Keys • Print Screen Key • Prints what is currently being displayed on the screen • Pause Key • Temporarily suspend the current task

  37. slide 37 Keyboard Provides three basic ways for issuing commands: (1) Key in the command using the alphanumeric portion of the keyboard (2) Tap a function key (3) Use the arrow keys to select a menu option from the displayed menu

  38. slide 38 Keyboard Skills In order to use the keyboard efficiently, users are encouraged to develop their Keyboard Skills.

More Related