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Computer Memory

The computer memory is a physical device used to store data or programs for use in a computer. Some types of computer memory include RAM (random access memory), ROM (read-only memory), and page cache.

4,434 Questions

Has the size of the CMOS memory increased decreased or stayed the same?

The size of the CMOS has increased, but the usage may have decreased.
Since first made it has increased exponentially like Moore's Law predicted for all ICs.

What is live data?

Information that is currently being used and kept up-to-date.

How does SRAM work?

SRAM (Static RAM) is an improved architecture of regular DRAM. Traditional DRAM is composed of a transistor and a capacitor which require periodic rewriting (refreshing) of information in order for data to remain valid. SRAM memory requires no refresh at all, it will maintain its information so long as it has sufficient power to keep it. This is due to the fact that internally, the SRAM component is made up of flip-flop circuitry, that does not depend on refreshing.

What is the most powerfull ram DDR1 or DDR2?

well...Depending on what you mean by powerful, that mean a lot of different things. I will assume you mean faster in this case. DDR1 and DDR2 are very similar when it comes down to it, but DDR2 transfers data at twice the speed compared to DDR1, assuming the clock speeds are the same. DDR2 has higher clock speeds most of the time, and therefore will be even faster than that.

What is the value of installing additional video ram?

Stable high end graphics dispaly. No Skips better feedback to the processer as to your space on the screen if playing games.

What type of material is used to make chip?

The chips that make up a memory module for a computer are made with a substance called "silicon". Silicon comes from sand and yes that is the reason why that little area in central California was called "Silcon Valley".

A RAM has a capacity of 64Kx16 how many address lines will be needed for this RAM?

you require 16 input line and 16 output line and 16 address line.

Because

64 K = 26 X 210 = 216 so, 16 address lines

Here N = 16, so 16 data lines will be there.

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What problems are likely to arise if two modules have high coupling?

High coupling amoung modules not only makes a design solution difficult to understand an maintain,but also incresed development effort and also makes it very diffcults to get these modules develop inddependently by different members.

Which type of CPU cache has the highest latency?

The Level 3 (L3) cache has the highest latency. The CPU cache is memory that is used to decrease the time that it takes the CPU to access data. Because the data is cached, it can be accessed more quickly. The CPU cache is often found directly on the CPU or built into the CPU. The L3 cache is usually larger than the L1 and L2 cache, but it is searched last. The CPU searches for data in the following order: L1 cache, L2 cache, L3 cache, RAM.

What is the maximum ram in acer aspire one?

I suppose it is 2Gb, because there are two slots and you can't install more than 1Gb for each slot

How fast is a hertz?

One Hertz is one cycle per second.

The main difference between sdram and dram is that dram is?

The main difference between Synchronous random access memory, SDRAM and Dynamic Random Access Memory, DRAM is that SDRAM is synchronous while DRAM is asynchronous. As such, SDRAM is efficient in retrieving and storing data than DRAM.