What key combination is used to access previous commands in DOS?

What key combination is used to access previous commands in DOS?

• A. Ctrl + P and Ctrl + N
• B. Alt + Up and Alt + Down
• C. UP and DOWN arrow keys
• D. F5 and F6 keys

Answer: (C)

In DOS, the UP and DOWN arrow keys are used to navigate through the command history, allowing users to recall previously entered commands. This is particularly useful for quickly accessing and re-executing commands without needing to retype them. When you press the UP arrow key, it retrieves the last command you entered; pressing it repeatedly allows you to scroll back through earlier commands. Conversely, the DOWN arrow key lets you move forward in the history once you've accessed a previous command with the UP key. This feature significantly enhances productivity in a command line interface, making it easier for users to repeat and modify commands as needed.

In DOS, the UP and DOWN arrow keys are used to navigate through the command history, allowing users to recall previously entered commands. This is particularly useful for quickly accessing and re-executing commands without needing to retype them. When you press the UP arrow key, it retrieves the last command you entered; pressing it repeatedly allows you to scroll back through earlier commands. Conversely, the DOWN arrow key lets you move forward in the history once you've accessed a previous command with the UP key.

This feature significantly enhances productivity in a command line interface, making it easier for users to repeat and modify commands as needed.