# How do you calculate mem needed to construct a mem system

• 09larin
In summary, to construct a 2M * 16 memory system using 512K * 8 static memory chips, you would need 1024K chips with a bus width of 8 bits, doubled to 2048K chips due to the bus width increase. However, this may result in slow performance and compatibility issues with the system BIOS. The amount of memory that can be used also depends on the operating system, with 32-bit Windows being limited to 4GB.
09larin
please help me with this question. how many memory chips are needed to construct 2M* 16 memory system using 512K * 8 static memory chips?

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I am guessing you are talking about 2M with a bus width of 16 bits from 512K with a bus width of 8 bits? As such there are 1024K in 1M because a computer counts in binary and not decimal. Plus you are doubling the bus width so you need twice as many per bus access. Expect is to run really slow though, and you might need to verify that the system BIOS can run RAM at the access speed of the older chips.

512K = 0.5M * 2 per bus = 8 - 512K x 8 bit bus needed for 2M x 16 bit bus

It also depends on the operating system. Windows xp had a 4 gig memory ceiling [ncluding graphics]. Win 7 bumped it to 32 gigs, due to 64 bit processing capability.32 bit windows OS is still stuck on 4 gigs. Adding more than 4G memory to 32 bit windows is like ****ing on a forest fire - you feel better but that's about it.

## What is "mem" and why is it needed to construct a mem system?

Mem, short for "memory", refers to the computer's ability to store and retrieve data. It is needed to construct a mem system because it allows the computer to run programs and store information.

## How do you calculate the amount of mem needed to construct a mem system?

The amount of mem needed for a mem system depends on several factors, such as the type and number of programs to be run and the amount of data to be stored. Generally, the formula for calculating mem needed is (number of programs) x (minimum required mem for each program) + (extra mem for data storage).

## What is the minimum required mem for a program?

The minimum required mem for a program is the amount of mem that the program needs to run without any issues. This can vary depending on the complexity of the program and the amount of data it processes. It is important to check the system requirements of a program to determine the minimum required mem.

## How do you determine the extra mem needed for data storage?

The amount of extra mem needed for data storage can be determined by estimating the size of the data that will be stored and adding a buffer for future data growth. It is recommended to have at least 10-20% extra mem for data storage.

## Can a mem system be upgraded if more mem is needed?

Yes, a mem system can be upgraded by adding more physical mem to the computer, as long as the motherboard and operating system support it. It is important to check the system's maximum mem capacity and compatibility before upgrading.

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