1. The Control key, also called the Ctrl key, is a modifier key found on most computer keyboards. It's usually located in the lower left part of the keyboard, next to the Caps Lock and Tab keys.

2. The Control key is used in combination with other keys to perform various keyboard shortcuts. For example, pressing Ctrl+C copies the selected text to the Clipboard, pressing Ctrl+V pastes text from the Clipboard, and pressing Ctrl+S saves the current document.

3. Various uses of control keys-

Ctrl+C: Copy

Ctrl+V: Paste

Ctrl+X: Cut

Ctrl+Z: Undo

Ctrl+Y: Redo

Ctrl+A: Select all

Ctrl+B: Bold

Ctrl+I: Italic

Ctrl+U: Underline

Ctrl+S: Save

Ctrl+O: Open

Ctrl+N: New

Ctrl+P: Print

Ctrl+F: Find

Ctrl+H: Replace

Pressing Ctrl+Shift+Esc opens the Task Manager.

Pressing Ctrl+Alt+Delete opens the Windows Security screen.

1. To create a strong password, it can be made up of at least 8 words and a combination of letters, numbers and characters.

1. PPI (pixels per inch) refers to display resolution, or, how many individual pixels are displayed in one inch of a digital image.

2. DPI (dots per inch) refers to printer resolution, or, the number of dots of ink on a printed image.

3. The physical size of an image refers to the dimensions in which it will print (ex: 8.5" x 11") or the pixel dimensions of an image displayed on the web (ex: 600 pixels x 800 pixels).

Application for Government Services and Fee Payment: Using the e-Mitra portal, citizens can apply for various government services and pay fees. These services include-

- Bill payment Home

- Application for certificates

- Filing of grievances

- Birth certificate

- Death certificate

- Caste certificate

- Basic address proof

- Ration card

- Passport

- driving license

1. Massive Open Online Courses (MOOC) are changing the world of education by providing free online courses.

2. MOOC is a web-based free distance learning program that ensures the participation of students from geographically remote areas in the field of education.

3. It offers free online courses for higher education, executive education and employee development.

1. The Esc key will not advance the slide in the slideshow view.

2. There is a button on the left side of the keyboard which is called “ESC Key”. This key is right next to the Functions Keys.

3. It is mostly used to cancel a command. As-

- An open Dialog Box can also be closed with the Escape key without using the mouse.

- A website being loaded in a browser can be cancelled by using the Escape key. That is, the website is not allowed to load.

- It is also used in many games to cancel Kari.

- The videos shown on the full screen of the media player can be opened in normal mode by using the Escape key.

- It is also used to cancel a wrong entry in an input field.

- Open Start Menu or PullDown Menu can be closed quickly by Esc key.