answer them plz...exam preparation ho rhi hai raat ko...
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Answers
Answer:
1.(a) Punctuation Keys: These are keys of the keyboard used for punctuation, examples include comma, full stop, colon, question marks, hyphen, etc. Windows Logo Key: A key on Microsoft Computer keyboard with its logo displayed on it.
(b) Almost all computer keyboards have a key marked Return or Enter; the two names are synonymous. The Return key moves the cursor (or insertion point) to the beginning of the next line. But more important, it returns control to whatever program is currently running.
2. Touch typing is a style of typing. Although the phrase refers to typing without using the sense of sight to find the keys—specifically, a touch typist will know their location on the keyboard through muscle memory—the term is often used to refer to a specific form of touch typing that involves placing the eight fingers in a horizontal row along the middle of the keyboard (the home row) and having them reach for specific other keys. Both two-handed touch typing and one-handed touch typing are possible.
3. Num Lock or Numeric Lock (⇭) is a key on the numeric keypad of most computer keyboards. It is a lock key, like Caps Lock and Scroll Lock. Its state (on or off) affects the function of the numeric keypad commonly located to the right of the main keyboard, and is commonly displayed by an LED built into the keyboard.