The correct answer is 'F1' because in most software applications, pressing the F1 key is the standard shortcut for accessing help. This key is universally recognized as the key to bring up help documentation or support resources within a program.
The correct answer is 'F1' because in most software applications, pressing the F1 key is the standard shortcut for accessing help. This key is universally recognized as the key to bring up help documentation or support resources within a program.
The correct answer is 'Joint Picture Expert Group' because JPEG is a commonly used file format for storing and transmitting digital images. The term 'Joint Picture Expert Group' refers to the committee that created the JPEG standard, making it the most appropriate answer for the acronym.
The correct answer is 'C. Show Desktop toggle' because pressing the Windows key + D on a Windows computer will minimize all open windows and show the desktop. This action is commonly referred to as the 'Show Desktop toggle' because it quickly toggles between displaying all open windows and showing the desktop. Therefore, this option accurately describes the function of pressing the Windows key + D.
The correct answer is 'Command line interface (CLI)' because it specifically refers to an interface where users can interact with the computer by typing in commands on a keyboard. This type of interface allows users to directly give instructions to the computer through text-based commands.
The correct answer is 'CtrlShift4' because this key combination is specifically used to format numbers in comma format in Excel. Pressing CtrlShift4 will apply the comma format to the selected cells, making it easier to read large numbers. This shortcut is a quick and efficient way to format numbers in Excel without having to manually adjust each cell.
The correct answer is 'D. Entire document' because pressing the F8 key three times in Microsoft Word selects the entire document. This shortcut allows users to quickly highlight all the text in the document for editing or formatting purposes.
The correct answer is 'D. Simplex' because communication between a computer and a keyboard only occurs in one direction. In this case, the computer sends signals to the keyboard to register key presses, but the keyboard does not send any signals back to the computer. This one-way communication is characteristic of simplex transmission.
The correct answer is 'F11' because pressing this key in Excel will automatically create a chart from the selected data without the need to go through the Chart Wizard. This shortcut allows for quick and efficient chart creation directly from the data.
The correct answer is 'Light pen' because it is a device that allows users to interact with a computer without the need for a keyboard. Instead, the light pen is used to directly point and select items on the computer screen, making it a hands-free operation. This eliminates the need for typing on a keyboard to input commands or data.
The correct answer is 'C. Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently' because it highlights the key distinction between the two types of computers. Supercomputers are designed to handle complex calculations and execute a small number of programs quickly, while mainframes are built to handle multiple tasks simultaneously, making them ideal for multitasking and handling a high volume of transactions efficiently. This explanation clearly defines the primary purpose and functionality of each type of computer, emphasizing their respective strengths and focuses.