how about a small computer (micro bit) from BBC

These tiny computers are intended to encourage children to get the programming finally being delivered to schools,
British Broadcasting Corporation (BBC), a public broadcasting company in the UK recently announced that they are developing micro computers to be distributed to middle school kids. Microcomputer named Bit Micro is expected to increase interest in the field of children's programming.

Micro Bit


For the realization of this plan, the BBC in collaboration with more than 25 organizations. Ten of them are companies that contribute directly to the design, manufacture and distribution:

ARM
Barclays
element14
Freescale Semiconductor
Lancaster University
Microsoft
Nordic Semiconductor
Samsung
ScienceScope
Technology Will Save Us
While the rest of the companies or institutions that contribute in the areas of socialization and education:

Bright Future
CISCO
code Club
CoderDojo
code Kingdoms
Creative Digital Solutions
CultureTECH
Decoded
Institution of Engineering and Technology
Kitronik
London Connected Learning Centre
open University
Python Software Foundation
STEMNET
TeenTech
tinder Foundation
Micro Bit will be made about the size of a credit card like a Raspberry Pi. Micro Bit will also have an LED screen so that students can program more easily. This mini computer is not made to compete with other mini computers which first appeared as Raspberry Pi, Galileo, Kano, Arduino, and his friends, but only to provide easy access to technology for children in the UK. Bit Micro is currently still under development and is planned to be released soon.

On this occasion The BBC intends to micro: little to inspire "a new 

generation to get creative with coding, programming and digital technology", thanks to the success of microcomputer