Keyboard: keyboard এ key এর সংখ্যা 104টি, 104 অপশনে না থাকলে 105টি উত্তর দেওয়া যাবে।
Function key - 12টি।(F1-F12)
F1= Help
F2=Rename
F3 = Search file
F4=Web list
F5=Refresh or slide show
F6=Web link
F7=Spelling or Grammar Check
F8=Safe Mood
F9= Volume increase or Hyper link
F10=Volume Decrease or Active menuber
F11=Full screen
F12=Save as
★Numeric key -17 টি
0-9=10টি,(+,-,★,%,Decimal Point, Num Lock, Enter)
Alpha numeric key -36 টি
0-9 =10 টি,a-z=26টি মোট 36 টি।
Arrow key বা, কার্সর কি -4টি(Up,Down,Left,Right)
Modifier key অনেক যেমনঃ
Shift,Alt,option, ctrl,command,
Ctrl+A=Select all
Ctrl+B=Bold & unbold
Ctrl+C=Copy ( selected text)
Ctrl+D=Open font formatting window
Ctrl+E=Centre Alignment
Ctrl+F=Find word
Ctrl+G=Go to ( Line or page)
Ctrl+H=Replace
Ctrl+I=Italic
Ctrl+J= Justified Alignment
Ctrl+K=Hyper link
Ctrl+L=Left Alignment
Ctrl+M=Indent the paragraph or open new slide.
Ctrl+N=Open new word file or open a new tab.
Ctrl+O= Used to open
Ctrl+ P = Print
Ctrl+Q=Clear the paragraph
Ctrl+R=Right alignment
Ctrl+S=Save
Ctrl+T=Indent after first line
Ctrl+U= Underline
Ctrl+ V= Paste
Ctrl+W=Close the document or close a tab
Ctrl+ x=Cut(Selected text)
Ctrl+Y=Repeat typing
Ctrl+Z=Undo
Ctrl+ Enter=Page break
Shift+Enter= Line break
Ctrl+ Home/Ctrl+End=Move to the bottom
Ctrl+F12=Open a dialog box
Shift+F12=Save word document
Ctrl+ shift +F12=Print the word document
Alt+Ctrl+Del=Reboot the computer.
Ctrl+Tab= Two or more excell file open
Ctrl+ Space Bar =Highlight the column.
★Key layout (Keyboard বিন্যাস)-3টি
১.QWERTY
২.QWERTZ
৩.AZERTY.