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Distinguish clearly between the computer terms ROM and RAM. - Leaving Cert Engineering - Question d - 2007
Question d
Distinguish clearly between the computer terms ROM and RAM.
Worked Solution & Example Answer:Distinguish clearly between the computer terms ROM and RAM. - Leaving Cert Engineering - Question d - 2007
Step 1
ROM: Read Only Memory
Answer
ROM, or Read Only Memory, refers to a type of storage that is primarily used for firmware or software that is closely tied to hardware. The key characteristics of ROM include:
- Data Integrity: The data written in ROM is permanent and cannot be modified or erased. It is fixed at the time of writing.
- Reading Capability: Users can read the contents of ROM, but they cannot write or alter it. This makes it suitable for storing essential bootstrapping programs for hardware.
- Speed: Accessing data from ROM is generally slower compared to RAM, but it retains information even when the power is turned off.
Step 2
RAM: Random Access Memory
Answer
RAM, or Random Access Memory, serves as a type of volatile memory used for temporarily storing data and programs that are actively in use. Its features include:
- Data Volatility: RAM is volatile memory, meaning it loses all stored information when power is turned off.
- Read and Write Capability: Unlike ROM, users can both read from and write to RAM, making it essential for multitasking and running applications effectively.
- Usage: RAM is utilized for storing data that is frequently accessed by the CPU, which enhances the overall speed and performance of a system.