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What is it and why do you need it?

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Presentation on theme: "What is it and why do you need it?"— Presentation transcript:

1 What is it and why do you need it?
RAM What is it and why do you need it?

2 RAM – Random Access memory
When you load a program in Windows, your PC copies the program one line at a time from the mass storage device (usually the hard drive) to RAM. But memory doesn’t just store the programs, but data that is being actively used too.

3 Why would a computer do this?

4 A computer copies the application and data currently in use to the RAM because it is much faster to access than accessing the hard drive over and over again.

5 What part of the computer does the reading/writing to/from the ram???

6 THE CPU

7 The CPU uses Dynamic Random Access Memory (DRAM) DRAM Functions like a spreadsheet which holds 1’s and 0’s

8 ROWS X COLUMNS 1M X 8 Chip = 1M or ROWS X 8 COLUMNS 1M X 16 Chip = 2M ROWS X 16 COLUMNS 1M OR 1 MEG = 1,018,576

9

10 Why is it called DRAM (Dynamic Random Access Memory
Why is it called DRAM (Dynamic Random Access Memory??? Dynamic = Constantly changing Random = Not planned Access = entry Memory = temporary place for applications and data to be while in use.

11 ALL computers use dram both PC and Mac


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