Explanation

• The data bus carries information between processors and peripherals by transferring actual data.
• The control bus manages control signals.
• The address bus specifies the memory locations involved in these transfers.

Explanation

• PNG (Portable Network Graphics) is a raster graphics file format that uses a bitmap to store images.
• It is commonly used for web graphics, digital photos, and images with transparent backgrounds.

Explanation

• A half-byte, also known as a nibble.
• It is a unit of digital information that consists of 4 bits (or half of a byte, which is 8 bits).
• It can represent 16 different values, from 0000 to 1111.

Explanation

To zoom an Excel worksheet, you can use:

• The mouse pointer in Print Preview: Click and drag the mouse pointer in the lower right corner of the Print Preview window to zoom in or out.
• The zoom button on the Print Preview toolbar: Click the zoom button (magnifying glass icon) to zoom in or out.
• The zoom command on the View menu: Select View > Zoom > Zoom In/Out or use the shortcuts Ctrl+Plus sign (+) to zoom in or Ctrl+Minus sign (-) to zoom out.

Explanation

• To protect a worksheet, you can lock cells to prevent changes, formatting, or deletion.
• This is done by using the "Protect Sheet" feature in spreadsheet software like Microsoft Excel or Google Sheets.

Explanation

Robots are machines controlled by software and are used in various fields, including:

• Manufacturing: Robots are widely used in manufacturing for tasks such as welding, assembly, and material handling.
• Military: Robots are used in the military for tasks such as explosive disposal, surveillance, and search and rescue.
• Medical: Robots are used in medicine for tasks such as surgery, patient care, and rehabilitation.

Explanation

• BIOS (Basic Input/Output System) is the firmware that controls a computer's hardware components and provides a interface for configuring settings.
• It is typically stored in a flash memory chip on the motherboard, which is a non-volatile memory type that retains data even when power is turned off.

Explanation

• The title bar is the topmost bar in the PowerPoint window that displays the name of the current file, followed by the application name ("PowerPoint").
• It also contains the minimize, maximize, and close buttons.

Explanation

• Wolfram Alpha is not a search engine in the classical sense, it's a computational knowledge engine.
• Google, MSN, android Yahoo are traditional search engines that crawl and index web pages to provide relevant search results.

Explanation

• When you hover the mouse over a chart object, such as a bar or a line, a small popup box appears, displaying additional information about the data point.
• Such as its value, label, or other relevant details.
• This popup box is called a Screen Tip or Tooltip.