The correct answer is: B. Memory which can be both read and written to.
RAM stands for Random Access Memory. It is a type of computer memory that can be accessed randomly, meaning that any byte of memory can be accessed without having to access the preceding bytes. RAM is typically used to store data that is currently being used by the computer, such as the operating system, running programs, and open files.
RAM is volatile memory, which means that it loses its contents when the power is turned off. This is in contrast to non-volatile memory, such as hard drives and solid-state drives, which retain their contents even when the power is turned off.
RAM is typically much faster than non-volatile memory. This is because RAM is accessed directly by the CPU, while non-volatile memory is accessed through a slower interface.
The amount of RAM in a computer is an important factor in its performance. More RAM allows the computer to store more data in memory, which can speed up the execution of programs.
There are two main types of RAM: dynamic RAM (DRAM) and static RAM (SRAM). DRAM is the most common type of RAM. It is less expensive than SRAM, but it is also slower. SRAM is faster than DRAM, but it is also more expensive.
RAM is an essential component of any computer. It provides the computer with the memory it needs to store data and run programs. Without RAM, a computer would not be able to function.
A. Memory which can only be read is incorrect. RAM is a type of memory that can be both read and written to.
C. Memory which is used for permanent storage is incorrect. RAM is a type of memory that is used for temporary storage.
D. Memory which can only be written to is incorrect. RAM is a type of memory that can be both read and written to.
E. None of the above is incorrect. The correct answer is: B. Memory which can be both read and written to.