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English: PDF version of the Think Python Wikibook. This file was created with MediaWiki to LaTeX . The LaTeX source code is attached to the PDF file (see imprint).
The Ruputer is a wristwatch computer developed in 1998 by Seiko Instruments, a subsidiary of the Seiko Group. It was introduced on 10 June 1998. [1] In the US, it was later marketed as the onHand PC by Matsucom. The Ruputer has a 16-bit, 3.6 MHz processor and 2 MB of non-volatile storage memory and 128 KB of RAM.
The WatchPad 1.5 features a 320 × 240 QVGA monochrome touch sensitive display and runs Linux 2.4. [8] [9] It also features calendar software, Bluetooth, 8 MB of RAM and 16 MB of flash memory. [10] [11] Citizen was hoping to market the watch to students and businessmen, with a retail price of around $399. [11]
The first digital watch was the Pulsar, introduced by the Hamilton Watch Company in 1972. The "Pulsar" became a brand name, and would later be acquired by Seiko in 1978. In 1982, a Pulsar watch (NL C01) was released which could store 24 digits, likely making it the first watch with user-programmable memory, or the first "memorybank" watch.
Quartz watch, watches whose timekeeping element is quartz crystal Topics referred to by the same term This disambiguation page lists articles associated with the title Electronic watch .
In nearly all quartz clocks and watches, the frequency is 32 768 Hz, [1] and the crystal is cut in a small tuning fork shape on a particular crystal plane. [2] This frequency is a power of two ( 32 768 = 2 15 ), just high enough to exceed the human hearing range , yet low enough to keep electric energy consumption , cost and size at a modest ...
Casio CD-401, one of the first Data Bank watches from 1983 A Casio DBC-610 Databank calculator watch Casio DBA-800 Databank, the world's first phone dialer watch. Casio Databank (often styled as CASIO DATA BANK) is a series of digital watches and electronic personal organizers manufactured by Casio. The watches allow data storage for names and ...
The HP-01 is unique not only as the only Hewlett-Packard watch but due to these unique features: Datatype for time, date, and time interval, and the ability to perform mathematics on these datatypes. A stopwatch that allows the stopwatch time to be multiplied or divided by a constant, and continuously display the results.