The alphanumeric keyboard is like the typewriter’s keyboard. It has all the letters of the alphabet, the ten decimal digits, and the punctuation and accent marks.
Numeric keyboard: On the right is a set of 16 keys called the “Numeric Key Pad.” It has the numbers 0 through 9, the + and – signs, the decimal point, and keys for multiplication, number, and scrolling. This set was made so that large amounts of numerical data can be entered into management programs.
Some of the keys on the numeric keypad can be used for more than one thing. This is controlled by the Num lock number lock key. The first use is for the numbers 0 through 9. This is called the “numerical mode.” The second is for the cursor control keys: Home (7), Up arrow (8), PgUp (9), Left arrow (4), Right arrow (6), End (1), Down arrow (2), and PgDn (3). The separate keypad has always been able to be used for two different purposes.
In addition to the last one, the keyboard has two more states that can be blocked by pressing certain keys: May lock (also called “Caps lock”) and After lock (also called “Scroll lock”). It uses a one-way communication protocol, so the motherboard can’t send commands to set up or check it. All of the signals have the address of the keypad.
Alphanumeric keys function
These keys, from F1 to F12, let you use “shortcuts” to get to functions that different programs have given you faster. In general, the F1 key is linked to the help that each program offers. When you press it, the help screen for the program you are currently using comes up.
- F1 : opens the help window for the program we are using.
- F2 : When we choose a file and press the F2 key, we can change the name of the file.
- F3: Many programs’ search menus will open when you press this key.
- F4: This key is used in Internet Explorer to show the address bar and see the pages we’ve been to recently. In the same way, we can close an application by pressing it with the “Alt” key.
- F5: Reload the screen. Especially helpful when browsing.
- F6: It lets you use the keyboard to move between a program’s menus.
- F7: In Firefox, it lets you move the cursor around freely with the keyboard.
- F8 : When we turn on the computer, if we press F8, we’ll go into safe mode.
- F9 doesn’t do anything in Windows
- F10 lets you get to the main menu bar in almost all programs.
- F11: Make the window as big as possible
Alphanumeric keys in keyboard
Control Keys: If we are using a word processor, this key lets us end a paragraph and move to a new line. It is usually used to confirm the data we just entered and move on to the next one when we are entering data. With these keys, you can move the cursor in the direction each arrow points. Used to move the cursor to the left and delete the characters at the same time.
If we are writing in lowercase and press this key at the same time as a letter, the letter will stay in uppercase. If we are writing in uppercase, the letter will be written in lowercase. It’s the tab button. It lines up text and numbers vertically in a word processor. This key lets you add a character between what we’ve already written, so that what we write next will be between what we’ve already written. Sets the alphabetic keyboard to all capital letters.
When we press it, we can see that the [Blog Shift] or [Caps Lock] light will come on in the top right corner of the keyboard. When the keyboard is set to uppercase, pressing a letter key will set it to uppercase automatically. Just press it again to turn it off.
Like the control key, the toggle key is used to make combinations and, depending on the program, do different things. It is used to delete the character to the right of the cursor in a word processor.
Capital key that is used to press it and without releasing it, write one or more letters with the other hand, in capital letters, and when we release it, all will appear in lowercase (for example, to write Carlos, we would press this key and without releasing it, press the “C,” then we would release it and write the rest, “arlos”).
Alphanumeric keys example
ALT: The toggle key, like the control key, is used to make combinations and do different things depending on the program we are using. Most of the time, it is used to get to the menus of a program. For instance, have you looked at the word menus where it says File, Edit, View, etc.? Well, look at how one letter is underlined in each word. So, press and hold the ALT key, then press the letter you want in the menu. If you press ALT + A, the FILE menu will appear.
CONTROL: The control key is used with other keys to activate different options based on the program being used. For example, in Word, if we hold down CTRL and type the letter A, we can open a document. If we press CTRL + G, we can save the document, and if we press CTRL + N, we can make what we have chosen bold. This is different for each program.
TAB: You’re using the tab key. It lines up text and numbers vertically in a word processor. Or put a certain amount of space between each word. It is also used to move from one box to another in a form or dialog box.
For example, if you press and hold the CTRL key and then press A without letting go of CTRL, the open document dialog box will appear. Now, press the TAB key, and you’ll see that it turns blue where it says “FILE TYPE” at the bottom. If you press the TAB key again, a small dotted box will appear around the word “CANCEL,” and pressing TAB again will take you to another option.
Examples of Alphanumeric keys
Escape key: Bob Bemer came up with the escape key, which is called Esc. It’s called “Esc” or “Escape,” and it’s usually used to make the 27th escape character of the ASCII code. Most of the time, this character is used to make an escape sequence. It is usually in the upper left corner of the keyboard. It is always used in small Microsoft Windows dialog boxes, where it is the same as saying “No,” “Remove,” “Exit,” “Cancel,” or “Abort.” It’s interesting that the escape key doesn’t close windows. To do that, you have to press Alt + F4. As an exception, we can say that the F3 key opens the search window in the Windows 98 operating system environment.
Delete key: (delete key, delete key, delete key, del key). This key, which is usually written as “Del” or “Del” on computer keyboards, is used to delete something. It is usually in two places on the keyboard, but where it is depends on the brand and type of the keyboard. When you press the Delete key in a text editor, it deletes the next character from where the cursor is (unlike the backspace key, which deletes the character before the cursor position). You can also get rid of an object by pressing the Delete key. For example, you could delete one or more of the files you have chosen in a file browser.
Insert key (Insert key, Ins key, insert key). On computer keyboards, this key is mostly used to switch between two ways to type text. Just press the INS key to switch between the two modes. One of the modes is called “insert mode,” and it puts the text written right where the cursor is. In the other mode, called “overwrite mode,” the text you type overwrites the text that comes after the cursor.
Home Key. Key that can be found on most computer keyboards and does the same thing as the End key (End key). In Windows and Linux text editors, the Home key or Start key is most often used to move the cursor back to the beginning of the line where it is. When the text can’t be changed, the Home key is used to go back to the beginning of the document. If the text can be changed, CTRL + Home Key can be used to do the same thing. For example, if we are in the middle of a non-editable web page and press the Home key, we will go back to the beginning of the page (moving the vertical scroll bar up).
How many alphanumeric keys in keyboard?
There is no one standard for the number of keys, buttons, or characters on a keyboard. As a de facto standard, most companies use the PC keyboard, which has 104 alphanumeric keys.