Many experienced typists can feel or sense when they have made an error and can hit the ← Backspace key and make the correction with no increase in time between keystrokes. Other shortcuts are the Ctrl key plus the C to copy and the Ctrl key and the V key to paste, and the Ctrl key and the X key to cut. An example of a keyboard shortcut is pressing the Ctrl key plus the S key to save a document as they type, or the Ctrl key plus the Z key to undo a mistake. This allows them to edit their document without having to take their hands off the keyboard to use a mouse. Many touch typists also use keyboard shortcuts when typing on a computer. To avoid this, typists should sit up tall, leaning slightly forward from the waist, place their feet flat on the floor in front of them with one foot slightly in front of the other, and keep their elbows close to their sides with forearms slanted slightly upward to the keyboard fingers should be curved slightly and rest on the home row. Touch typing also involves the use of the home row method, where typists rest their wrist down, rather than lifting up and typing (which can cause carpal tunnel syndrome). The basic technique stands in contrast to hunt and peck typing in which the typist keeps their eyes on the source copy at all times. There is also the disadvantage that because fewer fingers are used, those that are used are forced to move a much greater distance. Although good accuracy may be achieved, any typing errors that are made may not be noticed immediately due to the user not looking at the screen. The use of this method may also prevent the typist from being able to see what has been typed without glancing away from the keys.
Instead of relying on the memorized position of keys, the typist must find each key by sight. Hunt and peck ( two-fingered typing) is a common form of typing in which the typist presses each key individually. 3.1.2 Minimum string distance error rate.3.1.1 Deconstructing the text input process.
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