The bash rcc script is used by some Linux systems to carry out the same tasks each time a user logs out of her account.
The Linux family of open-source Unix-like operating systems is based on the Linux kernel, which Linus Torvalds initially made available on September 17, 1991. Linux distributions, which are how Linux is commonly packaged, frequently include the kernel and other system-supporting programmes and libraries, many of which are made available by the GNU Project. Although the Free Software Foundation likes to refer to their operating system as "GNU/Linux" to emphasise the importance of GNU software, many Linux versions have the term "Linux" in their names. This has caused some controversy. The most well-known Linux distributions are Debian, Fedora Linux, and Ubuntu. Lubuntu and Xubuntu are just two of the many distributions and modifications that make up Ubuntu.
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a byte-addressable main memory of size 256mb with blocks of 32 bytes in size. the cache memory can hold up to 64 blocks
The main memory can hold a total of (256 * 1024 * 1024) / 32 = 8,388,608 blocks.
What are main and cache memory?he main memory in this system has a size of 256 megabytes, which is equal to 256 * 1024 * 1024 bytes. With blocks of 32 bytes in size, this means that the main memory can hold a total of (256 * 1024 * 1024) / 32 = 8,388,608 blocks.
The cache memory, on the other hand, can hold up to 64 blocks. This means that it can store a small fraction of the data that is stored in the main memory. In order to access data that is not stored in the cache, the system must fetch it from the main memory, which takes longer than accessing data directly from the cache.
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