1, the role of the keyboard

The keyboard can input letters, numbers and punctuation marks, and you can move the cursor pointer with the direction keys. Keyboard is sometimes faster than mouse.

2, the layout of the keyboard

The keyboard is mainly composed of alphabetic keys. Twenty-six English letters are arranged in three rows, and your fingers should be flexible up and down. The longest key is the space bar, and the enter key marked with a horizontal arrow often means confirmation, line feed and execution. The ESC key in the upper left corner is generally used to cancel and exit.

Four direction keys arranged up and down, left and right can move the cursor. The cursor is a small blinking black vertical line, also known as the insertion point. Only with this vertical bar can you enter text.

3. Keyboard operation

The basic essentials of keyboard operation are two hands and blind typing. Hands means that the left hand holds the left half keyboard and the right hand holds the right half keyboard, with G and H as the dividing line.

Blind typing means remembering the position of letters. When typing, look at the screen with your eyes instead of tapping the keys with your fingers to help you find the keys.

Extended data:

Correct typing posture:

1. Keep your upper body upright. Bending is good for spinal injury.

2. The upper arm gently leans against the body and naturally droops.

3. When the forearm is extended, it is about 90 degrees from the upper arm. If necessary, adjust the height of the seat and the distance between the body and the keyboard.

4. Elbows should be supported and cannot be hung directly.

5, fingers naturally bend, relax and not tight.

6. Tap the keyboard when typing, don't push too hard.

7, wrist and upper arm as far as possible in a straight line. Long-term extraversion will cause cumulative damage.

8. Give your hand a rest once in a while.