Tuesday 8th of March – Bit-mapped Graphics Data

At the start of the lesson we were reminded that there was homework due on section 1 of Multimedia for today. We then began booklet 2 of Multimedia – all about Bit-mapped graphic data. Firstly we discussed resolution and more in particular the resolution of a printer, digital camera, scanner, computer display, the screen and printing resolution of an image and the sampling resolution of a sound. We than proceeded to talk about the fact that resolution has not really having changed in the last 20 years with the resolution of the most recent Apple technology, the iPad, being similar to that of computer display monitors 20 years ago. Mr Stratton also told us that out of all the colours, humans find it hard to see yellow. We than discussed input (capture) hardware such as CCDs, digital cameras, scanners and ADCs. Finally the class was given the task to search the internet and to, making use of tables, compare digital cameras and scanners in terms of optical resolution, maximum colour depth, price and other features that justify the higher price or quality.