PRIMARY MEMORY | RAM & ROM | TYPES OF RAM & ROM | PSC | JUNIOR COOPERATIVE INSPECTOR EXAM ORIENTED
Автор: The White Paper
Загружено: 2025-12-21
Просмотров: 10
Описание:
Primary memory, or main memory, is the computer's fast, directly accessible storage for data and instructions the CPU is actively using, acting as its short-term workspace, primarily consisting of volatile RAM (loses data without power) and non-volatile ROM (keeps firmware), allowing for quick processing by loading programs from slower secondary storage (like hard drives).
Key Characteristics
Direct CPU Access: The CPU interacts directly with primary memory for immediate data and instruction retrieval.
High Speed: It's much faster than secondary storage, crucial for efficient program execution.
Volatile (Mostly): RAM, the biggest part, loses its contents when the power is off, hence its temporary nature.
Limited Capacity: It holds less data than secondary storage but keeps what's needed now close at hand.
Types of Primary Memory
RAM (Random Access Memory): The main working memory, used for temporary storage of running applications and data (e.g., DRAM, SRAM).
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