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2. Curta - Wikipedia

   en.wikipedia.org/wiki/Curta

   A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.

3. Monroe Systems for Business - Wikipedia

   en.wikipedia.org/wiki/Monroe_Systems_for_Business

   Monroe Systems for Business is a provider of electric calculators, printers, and office accessories such as paper shredders to business clients. [1] Originally known as the Monroe Calculating Machine Company, it was founded in 1912 by Jay Randolph Monroe as a maker of adding machines and calculators based on a machine designed by Frank Stephen Baldwin.

4. Weighing scale - Wikipedia

   en.wikipedia.org/wiki/Weighing_scale

   A mechanical bathroom scale. Pressure on the internal springs rotates a disc displaying the user's weight in pounds. Electronic digital scales display weight as a number, usually on a liquid crystal display (LCD). They are versatile because they may perform calculations on the measurement and transmit it to other digital devices.

5. Calculator - Wikipedia

   en.wikipedia.org/wiki/Calculator

   Made in Japan, this was also the first calculator to use an LED display, the first hand-held calculator to use a single integrated circuit (then proclaimed as a "calculator on a chip"), the Mostek MK6010, and the first electronic calculator to run off replaceable batteries. Using four AA-size cells the LE-120A measures 4.9 by 2.8 by 0.9 inches ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. HP-19C/-29C - Wikipedia

   en.wikipedia.org/wiki/HP-19C/-29C

   HP-19C calculator HP-29C with AC-powered battery charger. The HP-19C and HP-29C were scientific/engineering pocket calculators made by Hewlett-Packard between 1977 and 1979. They were the most advanced and last models of the "20" family (compare HP-25) and included Continuous Memory (battery-backed CMOS memory) as a standard feature.