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Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device. Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware.
The r, w, and x specify the read, write, and execute access respectively. The first character of the ls -l display denotes the object type; a hyphen represents a plain file. The script findPhoneNumbers.sh can be read, written to, and executed by the user dgerman; read and executed by members of the staff group; and only read by any other users.
Most file systems include attributes of files and directories that control the ability of users to read, change, navigate, and execute the contents of the file system. In some cases, menu options or functions may be made visible or hidden depending on a user's permission level; this kind of user interface is referred to as permission-driven.
3. Click the Down arrow, next to "Send-only email address." 4. Click Add. 5. Enter the send-only email address. 6. Click Verify. 7. Open the email and follow the instructions to verify the address. - It might take a while until the send-only address can be used.
In mathematics, symmetric convolution is a special subset of convolution operations in which the convolution kernel is symmetric across its zero point. Many common convolution-based processes such as Gaussian blur and taking the derivative of a signal in frequency-space are symmetric and this property can be exploited to make these convolutions easier to evaluate.
(User and System) Compressed: Read-only attribute for files compressed using HFS+ Compression; In these systems, the chflags and ls commands can be used to change and display file attributes. To change a "user" attribute on a file in 4.4BSD-derived operating systems, the user must be the owner of the file or the superuser; to change a "system ...
Take control of where you'll end up after deleting or moving a message in AOL Mail. Choose to go back to the original folder, the next message, or the previous message after moving the email.
Delete a single email. Click on the conversation where the email is located. Click the More Icon | click Delete Message. Delete a full conversation. Locate the thread you want to delete. Click in the box to the left of the message. Click Delete at the top of your Inbox.