step 1: Keyboard->[sends an electrical signal]->
step 2: Computer(keyboard controller)->[interprets the signal and forward scan code to]->
step 3: Processor->[routes it to the program for]->
step 4: Operating system->[sends a message to that current active window]->
step 5: Current window->[process the signal by taking one byte of computer memory (RAM) and sends to]->
step 6: Operating system->[will add it to video card]
step 7: Next time when the video card refreshes your monitor the letter will appear on the screen
step 2: Computer(keyboard controller)->[interprets the signal and forward scan code to]->
step 3: Processor->[routes it to the program for]->
step 4: Operating system->[sends a message to that current active window]->
step 5: Current window->[process the signal by taking one byte of computer memory (RAM) and sends to]->
step 6: Operating system->[will add it to video card]
step 7: Next time when the video card refreshes your monitor the letter will appear on the screen
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