Digital Input
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| CPU (Central Processing Unit) | internal operation unit or "brain" of computer
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| DISK DRIVE | reads data from and writes data to a disk
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| MONITOR | displays text and graphic on a screen
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| MOUSE | used to input commands
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| KEYBOARD | an arrangement of letter, figure, symbol, control, function, and editing keys and a numeric keypad
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| ALPHANUMERIC KEYS | letters, numbers, and symbols
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| NUMERIC KEYPAD | keys @ the right side of the keyboard used to enter numeric copy and perform calculations
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| FUNCTION (F) KEYS | used to execute commands, sometimes with other keys. commands vary with software
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| ARROW KEYS | move insertion point up, down, left or right
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| ESCAPE (ESC) | closes a software menu or dialog box
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| TAB | moves the insertion point to a present position
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| CAPS LOCK | used to make all capital letters
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| SHIFT | makes capital letters and symbols shown @ tops of number keys
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| CONTROL (CTRL) | with other keys, executes commands
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| ALTERNATE (ALT) | with other keys, executes commands
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| SPACE BAR | inserts a space in text
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| ENTER (RETURN) | moves insertion point to margin and down to next line. also used to execute commands
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| DELETE | removes text to the right of insertion point
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| NUM LOCK | activates/ deactivates numeric keypad
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| INSERT | activates insert or type-over
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| BACKSPACE | deletes text to the left of insertion point
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| COMMAND | (MAC keyboards only)
with another key, executes commands that vary with software
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
AlyRock902
Popular Computers sets