Computers and computer systems
Computers and computer systems

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Computers and computer systems

5.4 Conclusion

You have seen that although the three products you have looked at are very different types of computer, they all embody the same basic functionality and a version of Figure 3 can be drawn for each product to illustrate this.

One feature of the PC is the range of forms of secondary memory it can use, and also the variety of input and output devices which the user can choose. The kitchen scales’ embedded computer is relatively simple with no secondary memory and relatively few input and output devices. The computer within the camera has a processor which needs to implement several complex processes to manipulate the image, has secondary memory and has many input and output devices.


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