Tag Archives: Scanner

1. Computer Systems, Computing Higher

Work for Tuesday 24th Sept.

A lot of the peripherals unit is investigation and comparison of similar products. A huge part of any IT professionals business revolves around knowing what the customer wants even when the customer can’t express it.

Take for example a design brief where the customer is looking for a way of getting photographs on to a DVD. We would need to know the following pieces of information.

  • Are the photographs already on the computer or would they need to be digitised.
  • Do they need to be edited before being placed on the disc
  • What format does the customer want them in, what about compression?
  • How many photographs?
  • What operating system?
  • Does the computer have a DVD writer?

Most of us would naturally start asking these question without thinking. However, in this unit we also need to compare the product we are suggesting with other similar products. This requires us to identify criteria we can use to pick the best product.

Continue reading Work for Tuesday 24th Sept. →

1. Computer Systems, Computing Higher

Scanners

OK, I admit it I went on a little about this 🙂

Here is a good post on the working of a scanner and in researching it I found that the video (below) in question was correct for colour CCDs.

[kml_flashembed movie="http://www.youtube.com/v/ZTWQbeE82HU" width="425" height="344" allowfullscreen="true" fvars="fs=1" /]

We will look at CCDs in more detail in next weeks lesson.

Here is a take apart that shows a LED scanner in more detail 🙂

[kml_flashembed movie="http://www.youtube.com/v/AuMkpaenqm8" width="425" height="344" allowfullscreen="true" fvars="fs=1" /]

1. Computer Systems, Computing Higher, Homework

How Stuff Works!

I was using Stumble Upon tonight when I came across the this site explaining how caching works.

It has a good explanation of how a cache works but the rest of the site is a little goldmine of videos and explanations. Take for example part of Tuesday’s lesson on scanners or Wednesday’s image type lesson.

When you are creating blog posts of lessons in the future, use the tools at your fingertips and search and research the topic more, rather than just relying on what you remembered from the day. Take this video as an example

WARNING Youtube videos, comments and posts often contain unsuitable language and material that may be age sensitive. They are out with the school’s control and should be viewed with caution.

[kml_flashembed movie=”http://www.youtube.com/v/vJG698U2Mvo” width=”425″ height=”344″ allowfullscreen=”true” fvars=”fs=1″ /]

A lesson is a lot like that, you will pick the bits that you think are important but you need to remember that there is a lot in there you must read up on later.