1. Computer memory is usually measured in bytes.

2. The memory of a computer is similar to that of the human brain.

3. It is used to store data and instructions.

4. One kilobyte is equal to 1024 bytes.

5. Defined in computer science by the International System of Units (SI), one byte is equal to eight bits.

1. Also known as junk mail or unsolicited bulk email, is a subset of electronic spam involving nearly identical messages sent to multiple recipients by e-mail.

1. The full form of MICR is Magnetic Ink Character Recognition. It is a technology that reads information in checks and other financial documents.

2. Other symbols in MICR have meanings.

- M: Magnetic Ink

- I: Ink

- C: Character

- R: Recognition

1. Blind carbon copy is the extended form of BCC used in e-mail communication.

2. It is used to send a copy of an email to a person without informing the recipient about it i.e. the identity of the recipient mentioned in the 'Bcc field' is hidden from other recipients receiving the same email.

3. Recipients in the BCC list can see every other email address, including the To and CC lists.

1. The full form of USB is Universal Serial Bus.

2. USB is a wired device with the help of which you can connect any other device like mobile with laptop, mobile with computer etc.

3. Apart from this, you can also insert a memory card inside the laptop with its help because it is a port in which we can insert things like Pendrive, Card Reader, Data Cable etc.

1. The full form of USB is Universal Serial Bus.

2. USB is a wired device with the help of which you can connect any other device like mobile with laptop, mobile with computer etc.

3. Apart from this, you can also insert a memory card inside the laptop with its help because it is a port in which we can insert things like Pendrive, Card Reader, Data Cable etc.

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. Among the options, terabyte represents the largest amount of data.

2. Computer memory is usually measured in bytes.

3. The storage capacity of a hard disk is measured in megabytes, gigabytes and terabytes.