the first portable phone came out in 1924.
the first portable phone came out in 1924.
when did the first portable phone come out?
1924
skilsaw









































skilsaw power tools (since 1924) is a manufacturer of cutting technology serving the professional construction market.









































section::::history.









































skilsaw power tools was founded in 1924 with the invention of its flagship tool, the skilsaw, the world’s first portable circular saw. this saw's invention also spurred the use of worm drive gearing, dual-field™ motor and die-cast aluminum motor housing. in 1937, its successor, the skilsaw model 77 became the benchmark of portable circular saws and continues to be used on jobsites across the united states.
skilsaw
apple released their first portable computer, the macintosh portable in 1989. although due to considerable design issues, it was soon replaced in 1991 with the first of the powerbook line: the powerbook 100, a miniaturized portable; the 68030 powerbook 140; and the 68030 powerbook 170. they were the first portable computers with the keyboard behind a palm rest and a built-in pointing device (a trackball) in front of the keyboard. the 1993 powerbook 165c was apple's first portable computer to feature a color screen, displaying 256 colors with -pixel resolution. the second generation of powerbooks, the 68040-equipped 500 series, introduced trackpads, integrated stereo speakers, and built-in ethernet to the laptop form factor in 1994.
macintosh