Freiberger and Swaine capture the early history of the microcomputer brilliantly - right from the development of the first microprocessor to the evolution of the first generation of IBM PCs and Macintoshes. Their view is very much an American one (so fans of the early British micros won't find much here), but this is very much a Silicon Valley story.
They cover not only the evolution of hardware (CPUs, buses, systems) but also of software (particularly at Microsoft, Digital Research and Apple) and of the industry that grew up around the machines - the culture (computer clubs and shows), the retail industry, the magazines. A very broad view is taken.
If the rest of the book was as good as the first 250 pages or so it'd get five stars, but the attempt to cover the software-led period from the mid-80s on feels rather rushed - it all gets rather rushed after the tale of how Philippe Kahn built up Borland, although there's some amusing stuff about Oracle in there too. Otherwise, rather difficult to fault this book. It is readable, occasionally amusing, full of interesting detail, and even has a small selection of well-chosen photographs.