A good book worth the cost for children (I would estimate 10+), but now out of date (published 2010) and sorely lacking in some areas.
Areas that have not been covered include:
-Solid State Drives
-RAID arrangement of hard drives
-The evolution of hardware connections such as IDE / E-IDE and SATA connections
-Cloud Computing and Cloud Storage
-MIDI and other alternative inputs
-Near Field Communication (NFC)
-Arduino / Raspberry Pi etc.
Also the coverage of Augmented Reality is out of date. Finally I was disappointed to see the coverage of operating systems only given a paragraph with no mention of non-windows systems or real explanation of what an operating system actually does and why it is important.