Search results
Results from the WOW.Com Content Network
Smaller programmable model with programs up to 49 steps. Version HP-25C was first calculator with "continuous memory". HP-27S: 1988 The first HP pocket calculator to use algebraic notation only rather than RPN. It was a "do all" calculator that included algebraic solver like the HP-18C, statistical, probability and time/value of money ...
A total of 40,000 units were sold; 90% of them in the United States where the sale price was $3,200 [4] (increasing to about $3,500 in 1968. [7]) About 10 [19] Programma 101 were sold to NASA and used to plan the Apollo 11 landing on the Moon. By Apollo 11 we had a desktop computer, sort of, kind of, called an Olivetti Programma 101.
Obsolete technology website — Information about many old computers. old-computers.com — Web Site dedicated to old computers. oldcomputer.info — Web site with information about many old computers. History of Computers — online magazine featuring pictures and information about many computers made between the 1970s and the early 1990s
By the 20th century, earlier mechanical calculators, cash registers, accounting machines, and so on were redesigned to use electric motors, with gear position as the representation for the state of a variable. The word "computer" was a job title assigned to primarily women who used these calculators to perform mathematical calculations. [35]
Typically binary computers with word size up to 36 bits had one instruction per word, binary computers with 48 bits per word had two instructions per word and the CDC 60-bit machines could have two, three, or four instructions per word, depending on the instruction mix; the Burroughs B5000, B6500/B7500 and B8500 lines are notable exceptions to ...
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.
A ‘90s vibe! In honor of her late father Robert Kardashian’s 77th birthday, Kim Kardashian took to Instagram to share a series of throwback pictures. And while the reality star is no doubt a ...
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 ...