Keyboard
One of the most essential input
devices in a computer is a keyboard. It is defined as the set of
typewriter-like keys that enables you to enter data into a computer or other
devices. Computer keyboards are similar to electric typewriters but contain
additional typing keys.
QWERTY keyboard layout
The goal of the QWERTY layout is to make the most common keys the most easily accessible (which is why Q is in the corner).
Sections
of Keyboard
Source: https://slideplayer.com/slide/13613278/
Function Keys - found in the topmost
part of the keyboard. F1 through F12 or F19 keys are used in programs as
shortcut keys.
·
F1
- Used as the help key in almost every program. Opens a help screen when this
key is pressed.
·
F2 - In
Microsoft Windows, rename a highlighted icon, file, or folder in all versions
of Windows; Enter CMOS setup.
·
F3
- Often opens a search feature for many programs, including Microsoft Windows
when at the Windows desktop.
·
F4
- Open the address bar in Windows Explorer and Internet Explorer; Repeat the
last action performed (Word 2000+); Alt+F4 closes the program window currently
active in Microsoft Windows.
·
F5
- In all modern Internet browsers, pressing F5 refreshes or reloads the page or
document window; Refresh the list of contents in a folder.
·
F6
- Move the cursor to the address bar in Internet Explorer, Mozilla Firefox, and
most other Internet browsers.
·
F7
- Commonly used to spell check and grammar check a document in Microsoft
programs such as Microsoft Word, Outlook, etc.
·
F8
- Function key used to enter the Windows startup menu, commonly used to access
Windows Safe Mode.
·
F9
- Refresh document in Microsoft Word; Send and receive e-mail in Microsoft
Outlook.
·
F10
- In Microsoft Windows, activate the menu bar of an open application;
Shift+F10 is the same as right-clicking on a highlighted icon, file, or
Internet link.
·
F11
- Enter and exit fullscreen mode in all modern Internet browsers.
· F12 - open the Save as a window in Microsoft Word; Ctrl+F12 opens a document in Word; Shift+F12 saves the Microsoft Word document (like Ctrl+S); Ctrl+Shift+F12 prints a document in Microsoft Word.
2. Alphanumeric
Keys - The keyboard's primary portion contains letters,
numbers, punctuation marks, and some of the symbol keys. It includes:
- home row keys consisting of A, S, D, F, G, J, K, L, :, ; and H
- top row keys with
Q, W, E, R, T, U, I, O, P, and Y
-
bottom row keys consisting of Z, X, C, V, B, N, and M
3. Numeric
Keypad - the keypad gives the user quick access to numbers and math
functions such as plus, divide, times, and subtract.
4. Arrow
Keys - The arrow keys are four directional keys that allow you to move the
cursor or change a highlighted selection
5.
Control and toggle keys -
give the user additional control over text manipulation and cursor placement.
The keys here are:
· Insert
key- toggles how text is inserted by
either inserting the text in front of other text or overwriting text to the
right of the cursor as you type.
· Home
key—primarily used to return the cursor to the beginning of the line you're currently typing.
· Page
up & Down - used to move the
display on a page.
· Num
Lock key - key enables and disables the numeric pad.
· Backspace
- it removes text to the left of the cursor.
· Delete
- removes the character to the left of the cursor, and moves the cursor
back one space.
· Enter
- sends the cursor to the following line or executes a command or operation.
· Tab
- used to insert a tab character or advance the typing cursor to the right by five characters.
· Caps
Lock - It causes all letters typed to be in uppercase until disabled.
· Esc
- allows the user to abort or cancel an operation.
· Alt
- used to press together with another key
· Spacebar
- it creates an empty space when pressed
COMMONLY USED SHORTCUT KEYS
1. Copy Ctrl + C
2. Paste Ctrl + V
3. Cut Ctrl + X
4. Save Ctrl + S
5. Undo Ctrl + Z
6. Redo ctrl + Y
7. Ctrl+A: Select all
8. Alt+Tab: Switch apps
9. Alt+F4: Close apps
10. Win+D: Show or hide the desktop
11. Ctrl+Esc: Open the Start menu
12. F2: Rename
13. F5: Refresh
14. Win+L: Lock your computer
15. Win+I: Open Settings
16. Win+PrtScn: Save a screenshot
17. Maximize Window: F11 or Windows 18. logo key + Up arrow
19. Ctrl+D Bookmark the current page in most Internet browsers.
20. Ctrl+B Change selected text to bold.
Ctrl+I Change selected text to be in italics.
Ctrl+U Change selected text to be underlined.
Learning
Activity #1: Name that Key!
Direction: Fill the missing keys on the Keyboard
Learning
Activity #2: Choose Your Color
Direction: Can you guess which of
the following I am? Pick a color from the colored keys in the picture below.
__________ a) I allow you to write alphabets.
__________ b) I allow you to move to the next line.
__________ c) I allow you to move the cursor to the top of the page.
__________ d) I allow you to delete the letter to the left of the cursor.
__________ e) I allow you to move the cursor up, down, left, and right.
__________ f) I allow you to delete the letter to the right of the
cursor.
__________ g) I allow you to create blank space between two words.
__________ h) You use me to type numbers.
__________ i) If you press me you can type capital letters continuously.
__________ j) I allow you to move the cursor to the end of the page.
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