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REVISIT



              ▶ QWERTY keyboard layout is the most efficiently designed standard keyboard layout used in countries, that use
             Latin-based alphabets.
              ▶ DVORAK keyboard layout is also designed for Latin-based alphabets and is an alternative to QWERTY layout.
              ▶ Colemak keyboard layout is also designed for Latin-based alphabets and as a modern alternative to the
             QWERTY and DVORAK layouts.
              ▶ The keys on the keyboard are arranged into various categories, like Alphabet Keys, Number Keys, Control Keys,
             Function Keys, Navigation Keys, Toggle Keys, Combination Keys and Special Keys.
              ▶ Home Row Keys is the middle row of alphabets on the electronic typewriter or a computer keypad where the
             fingers of both the hands rest when not typing anything.
              ▶ The numeric keypad consists of a set of 17 keys placed on the right corner of a computer keyboard.
              ▶ Typing ergonomics is the science of providing the correct setup of a computer and a correct posture to reduce
             the strain of muscles and joints due to repetitive typing posture for hours.
              ▶ Touch typing was a technique invented by a court stenographer named Frank Edward McGurrin, from Salt
             Lake City, Utah in 1888.
              ▶ Pointing devices are input devices that allow the user to interact with the computer by controlling the pointer
             on the screen.
              ▶ Rapid Typing Tutor is free, open source application software for personal or corporate use.
              ▶ Typing accuracy is defined as the percentage of correct entries, out of the total entries typed.
              ▶ The Typing Rhythm means typing a character (keystroke) at equal intervals using the touch typing method.





        Exercise





                                                           Solved

                                           SECTION A (Objective Type Questions)


        A.  Choose the correct option.
            1.  Which modifier key is used in combination with the other keys to execute a command in an operating system?
               a. Tab key                                        b. Shift Key
               c. Ctrl Key                                       d. Alt Key

            2.  The              is a standard input device.
               a. Keyboard                                       b. Printer
               c. Mouse                                          d. Microphone

            3.  Which of the following keys helps you to move in the downward direction, screen by screen?
               a. PgUp                                           b. PgDn
               c. Home                                           d. End
            4.  Which of the following devices allows the user to interact with the computer by controlling the pointer on the screen?
               a. Hardware                                       b. Peripheral device
               c. Pointing device                                d. Output device


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