1801: the chalkboard was invented By James Pilans, a geography teacher in a school in Edinburgh-Scotland- when he hung a slate slab in his classroom. you could use the slate slab multiple times, if washed.
Concordia Online states that at the end of the 18th century, classroom students everywhere were using this innovation. more recently-in the 1960s-the Chalkboard was accompanied by a more up to date version now known as a whiteboard which is written on with markers. still used in some places.
the personal computer age had finaly come into education in in the early 80s when the Atari desktop computer used Floppy Drive disks with very minimalist software. this enabled students (primarily primary age) to work individually in thier own way.
when computers really found thier feet was when windows 3-95 came into the school computer suites. internet access was very minimal but enabled people to navigate for information easily.
The laptop is another breakthrough, the first really useful and portable invented in '92.
the Laptop becomes digital tablet
tablets such as the iPad, Archos, Galaxy tab , Blackberry, and many more besides have various apps which enhance learning in a plethora of ways. these apps include:
EXPLAIN EVERYTHING:

if you have seen the "changing the paradigm" video, chances are that the idea for explain everything came from this, but making it a lot simpler to use. basically, while you talk about your subject, you can take notes, type, jot down images and it is all recorded in real time. even your mistakes.
So, once you have finished your lesson, or have made notes on paper, you can transfer them to explain everything in terms of animation and recorded audio.
GLOGSTER:

glogster is in efect an animated poster with links to audio files, scrolling text, youtube and other video formats, a handy way of showing work in a nifty format. basically, you choose your desired theme, possibly you could add a title as a central point and put your media around it or whichever way you want to do it.
there are signs that the children/pupils/students are becoming thier own teachers/lecturers, to achieve this, the students or pupils will have access to QR coding and speciality software called aurasma.
AURASMA
With this software, it is possible that they-the students- can film themselves explaining whats going on in a page of text, another pupil can scan the code on the page and befor they know it, the film jumps out of the book without blanking out the text.
it is believed that the majority of students who use technology to its full potential