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interchangeably, intermediaries, compartmentalize, opt for, ROM,
permanent storage, erasable programmable memory, ultraviolet light
exposure, reset the memory cells.

Task 2. Create your own sentences using the above mentioned
words and phrases.

TEXT 2
TYPES OF PRIMARY AND SECONDARY STORAGE
Computer data storage, or memory, is the means through which
the computer records and accesses digital data for computing.
Computer data storage allows computers to retain information and
allows the user quick access to it. Storage can be broken down into
two sub-categories: primary and secondary storage. Primary storage
refers to quickly accessible forms of short-term data storage, while
secondary storage contains data that is not immediately accessible by
the CPU and stored until it is either deleted or overwritten by the
user.
Primary Storage: RAM and Processor Registers
Random Access Memory, or RAM, is short-term memory
directly accessible to the CPU. There is constant communication
between the CPU and RAM, one reading instructions from the other.
RAM comes in three subtypes. Dynamic random-access memory,
called DRAM, and static random-access memory, or SRAM, are
used in processing. DRAM is cheaper but slower and less efficient
than SRAM and needs to be periodically refreshed. A third type,
nonvolatile random-access memory, or NVRAM, will not lose
information when the power supply stops. BIOS, or basic input-
output system, memory is a type of NVRAM. The data storage
capacity of RAM is limited; however, it offers a much faster access
rate than other forms of memory. For this reason, RAM is relatively
more expensive compared to other forms of data storage (i.e. hard
disks).

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