CLASS- 2 : FUNCTIONS OF EXTERNAL PARTS OF THE COMPUTER 📒📕📗📘📖

#computer_classes #computerclass #sudhirgawas #safarwithsudhir CLASS 2 FUNCTIONS OF EXTERNAL PARTS OF THE COMPUTER 📒📕📗📘📖

TODAY WE WILL LEARN ABOUT EXTERNAL PARTS OF THE COMPUTER

1. MONITOR A MONITOR IS A VIDEO OUTPUT DEVICE THAT DISPLAY TEXT, VIDEO AND OTHER INFORMATION. SCIENTIST NAME WHO DISCOVERED MONITOR KARL FERDINAND BRAUN FIRST CRT DISPLAY WAS DESIGNED IN 1897

2. CPU (CENTRAL PROCESSING UNIT) FUNCTION IS TO CARRIES OUT COMPUTER PROGRAM. IT PERFORMS THE BASIC ARITHMETICAL , LOGICAL AND INPUT OUTPUT OPERATIONS OF A COMPUTER SYSTEM.

3. KEYBOARD A KEYBOARD IS AN INPUT DEVICE USED TO ENTER CHARACTERS AND FUNCTIONS INTO THE COMPUTER SYSTEM. KEYBOARD IS ALSO KNOWS AS QWERTY KEYBOARD AS FIRST LINE OF THE ALPHABET WAS SPELLED QWERTY. KEYS OF KEYBOARD US KEYBOARD : 101 KEYS WINDOWS KEYBOARD: 104 KEYS

4. MOUSE A COMPUTER MOUSE IS A POINTING DEVICE. TYPES OF MOUSE

5. TRACKBALL MOUSE

6. OPTICAL MOUSE

7. UPS ( UNINTERRUPTIBLE POWER SUPPLY) BASICALLY THIS IS USED AS POWER BACKUP MIN POWER BACKUP TIME IS 15 MIN INVENTED BY JHON HANLEY

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