The iBook was like a early 2000s MacBook it was discontinued when the intel switch began and created the MacBook. The first iBook was the iBook G3 clamshell it’s design matched the iMac G3’s lean more at our iMac post the next iBook was the iBook G3 snow instead of a clamshell design it had a square design. The iBook G4 snow was next iBook it had the same snow design but a different CPU, the last iBook was the was the iBook G4 polycarbonate it was bigger and was polycarbonate. There was no iBook G5 it probably was one of the reasons was apple switched to intel.
About now the iMacs you see have the same shape even for the new M1 cpu the iMac didn’t get an update but there was a time when the iMac design would change for every new major update. Remember when macs had power pc cpus starting with the iMac G3 had a clear egg design but when the iMac G4 was released it had a LCD screen so it got a lamp design, personality it my favorite it may have inspired by a concept from the TAM learn more in the TAM post at https://www.eddy4ai.com/index.php/2021/01/30/the-apple-tam/. The iMac G4 has G4 cpu, it was released on January 7 2002 with macOS 9 and X but then on 2003 only macOS X and the final one had USB 2.0. Eventually it was disconnected and the new iMac G5 was released with the almost same design as the the iMac 2020 more plastic and white. The iMac G5 was the last power pc iMac because in 2006 we got the almost same computer but with an Intel cpu and a camera and called the Polycarbonate iMac, on 2007 the new iMac was aluminum so it was the aluminum iMac 2008, the design that we have today is from the Unibody iMac from 2009, these macs are pretty cool, Edward.
In the 90s there was a computer to premium that is cost 7,000$ the Apple 20th anniversary Macintosh! The computer in Batman is the 1st prototype of TAM. There are some cool concepts of the TAM you might like some of them. The TAM was made in the time when Steve Jobs but Jony Ive did go into the development of it and maybe the Imac G4 may have been from one of the concepts, Thank for going on the AI Blog, Edward.