निम्नलिखित में से कौन सा एक इनपुट डिवाइस है जो मुद्रित सामग्री या टेक्स्ट को स्कैन करके डिजिटल प्रारूप में परिवर्तित करता है?

Match the computer memory types in Column A with their characteristics in Column B: Column A (Memory Type)Column B (Characteristic)A. DRAMi. Non-volatile memory, commonly used for storing system boot loaderB. SRAMii. Volatile, faster and used as cache memoryC. ROMiii. Volatile, needs periodic refreshing to retain dataD. EEPROMiv. Non-volatile, electrically erasable and programmable

To increase the word size of a memory system, which of the following techniques is typically used?