WBJECA 2025 — Computer PYQ

RAM (Random Access Memory) is a type of primary computer memory. It acts as the "working memory" for a computer, providing fast access to data currently being used by the processor to run applications and the operating system.

To understand why the other options are incorrect, it is helpful to understand the core characteristics of RAM:

1. Volatile Nature: RAM is volatile, meaning it requires a continuous flow of electricity to maintain the data stored within it. If the power is interrupted, the data is lost.

   $$Stat{e}_{Data}=\{\begin{array}{ll}Maintained,& amp;\text{if Power is ON}\\ Lost,& amp;\text{if Power is OFF}\end{array}$$

2. Read/Write Capability: Unlike ROM (Read-Only Memory), RAM allows both reading and writing operations, which is essential for the dynamic nature of running software.

   $$Operatio{n}_{Access}=Read+Write$$

Because RAM is highly dynamic, the relationship between its capacity and the efficiency of program execution can be summarized as:

$$Executio{n}_{Speed}\propto Capacit{y}_{RAM}$$

In contrast, options (A) and (B) describe non-volatile memory (like Hard Drives or SSDs), and option (D) describes Read-Only Memory (ROM).