COMPUTER FUNDAMENTALS

COMPUTER HARDWARE

STORAGE DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a feature of DRAM?
A
They are much faster than SRAM
B
They have a higher storage capacity than SRAM
C
They consume more power than SRAM
D
They are more expensive to manufacture than SRAM
Explanation: 

Detailed explanation-1: -One of the key advantages of DRAM is its high density, which means that it can store more data per unit of area than SRAM. This makes it ideal for large-scale memory applications such as main memory in computers, where cost and capacity are more important than speed.

Detailed explanation-2: -While a DRAM module only requires one transistor and one capacitor to store every bit of data, SRAM needs 6 transistors. Since the number of transistors in a memory module determines its capacity, for a similar number of transistors, a DRAM module can have up to 6 times more capacity than an SRAM module.

Detailed explanation-3: -SRAMs are faster and more expensive than DRAMs. DRAMs offer a higher storage space than SRAMs. SRAMs are used in cache memory, while DRAMs are used in main memory.

Detailed explanation-4: -The DRAM works as the main memory in the computers (for example, DDR3). SRAM typically has a storage capacity of 1 MB-16 MB. DRAM has a usual capacity of 1 GB0 2GB, commonly found in tablets and smartphones. In most laptops, its storage capacity can be up to 4 GB-16GB.

Detailed explanation-5: -SRAM is faster and typically used for cache, DRAM is less expensive and has a higher density and has a primary use as main processor memory. SDRAM stands for Synchronous Dynamic Random Access Memory, a type of DRAM that is synchronized with the processor system bus for a speed advantage.

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