FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

COMPUTER MEMORY AND PROCESSING DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is a digital device, using the same logic elements used in the processor. In ____ binary values are stored using traditional flip flop logic gates configurations. ____ also will hold its data as long as power is supplied to it.
A
Static RAM
B
Dynamic RAM
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -❖ A static RAM (SRAM) is a digital device that uses the same logic elements used in the processor. ❖ In a SRAM, binary values are stored using traditional flip-flop logic-gate configurations. ❖ A static RAM will hold its data as long as power is supplied to it.

Detailed explanation-2: -In electronics, flip-flops and latches are circuits that have two stable states that can store state information – a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and will output its state (often along with its logical complement too).

Detailed explanation-3: -A flip-flop is a sequential digital electronic circuit having two stable states that can be used to store one bit of binary data. Flip-flops are the fundamental building blocks of all memory devices.

Detailed explanation-4: -SRAM is commonly used for a computer’s cache memory, such as a processor’s L2 or L3 cache. It is not used for a computer’s main memory because of its cost and size. Most computers use DRAM instead because it supports greater densities at a lower cost per megabyte (MB).

Detailed explanation-5: -DDR3 is an example of DRAM. SRAM, or static RAM, offers better performance than DRAM because DRAM needs to be refreshed periodically when in use, while SRAM does not. However, SRAM is more expensive and less dense than DRAM, so SRAM sizes are orders of magnitude lower than DRAM.

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