The appointment is for a 2 - year period initially, upon annual review, and possibilities of extension beyond the 2 years. (giss.nasa.gov)
It's a 5» E ink screen with an amazing 200dpi resolution, 1 GB of storage memory with possibility of extension with microSD. (e-reader-info.com)
Additionally, on the topic of rising pupil numbers, modular buildings hold the easy possibility of extension and the capability to be easily moved, far more suitable to a changing school site than a traditional construction. (educationbusinessuk.net)