Computer Input Units PART- 1 Prepared by: Aswa thy C Follow me: https://unacademy.com/user/aswathyC
Basics Provide data & Instructions to the computer KEYBOARD Primary input device Invented by : Christopher Sholes Receives input in text format In a Standard Keyboard: 104 keys Largest key : Spacebar Key
Keyboard Alphanumeric Keys * Functional Keys * Number of Functional Keys : 12 A to Z & 0 to 9 F1 to F12 * Formatting Key Spacebar, Tab, Enter
Keyboard Special Purpose Keys Delete, Backspace, help, Escape Navigation Keys Arrow Keys, Home, End * Modification Key Shift, Control, Alt * Toggle Key Num lock, Caps lock, Scroll lock
Mouse Pointing Device Invented by : Douglas Engelbart Select an Icon : Left/Single Click Open an Icon: Double Click Short cut/ properties : Right Click Move as Icon : Dragging
Mouse Speed of Mouse is measured by : Mickey Mechanical Mouse Optical Mouse TYPES OF MOUSE ? Wireless Mouse
Other Pointing Device Joystick Light pen Track ball Touch pad Touch method was developed by Frank Mc Gurrin
THANK YO U
5 lessons,
50m 0s
Enroll
12
✕Download
Aswathy C
Tutor in Aswamedham PSC coaching center, Penalion Academy, Karma coaching center, Master's Academy etc.. 2 year experience in Kerala PSC tra
U
Unacademy user
Akash nagi
2 years ago
About the statistics that you have provided you must also enlighten the audience that for Gmat each branch has its own competition so the the competition is relatively reduced in case of gmat
0
Reply