WIRED

世界初の「ポータブル」PC、IBM製で重量25キロ

これは何かって？ ポータブル・コンピューター、さらに言うなら、世界初のポータブル・コンピューターだ。 とはいえ、これがどうして「ポータブル」(持ち運び可能)なのだろう？ 答えは簡単、米IBM社がそう名付けたからだ。 重さ25キログラムのこの無骨 ...
GIGAZINE

What is the world's first PC among the "Apple II" and "IBM 5100" machines?

The IBM 5100 was released in 1975, six years before the IBM PC. It was IBM's first desktop portable computer with 100 KB of ROM and 64 KB of RAM installed but it was said that it was not popular at ...
Hackaday

ibm 5100

The 1970s was a somewhat awkward phase for the computer industry — as hulking, room-sized mainframes became ever smaller and the concept of home and portable computers more capable than a basic ...
Reuters

: Key dates in the history of the personal computer

TAIPEI (Reuters) - This year will likely be the first year that laptop PC sales will outstrip those of desktop PCs. Here are some landmark dates in the history of personal computers which evolved from ...