Casio FX 85 ES Calculator
(Buy it from Amazon for only £3.49)
The FX85ES is the new kid on the block and is shaking up the maths world. With 249 functions and the revolutionary Natural Textbook Display you are able to enter expressions as seen in your text books.Soon to be the new king of Scientific calculators, The FX85ES is ideal for kestages 3 and above. Natural Textbook Display Table of a function Statistical Data Entry-List-based Multi replay Ideal for Keystages 3 & 4 and above-Age 11-16+ Power:Solar/Battery
Technical Details
- Battery: Yes
- Mains Power Supply: No
- Printing Functionality: No
- Solar Energy Driven: Yes
- Tilted Display: No
- Type: Scientific Calculator
Product details
- Product Dimensions: 50 x 50 x 50 cm ; 300 g
- Boxed-product Weight: 454 g
- Item model number: FX-85ES
- ASIN: B000A1LNP0
- Date first available at Amazon.co.uk: 17 Sep 2006
May 27th, 2008 | Posted in Uncategorized | Comments Off
Sharp EL-531WB Scientific calculator - 272 functions
Price: £5.25 GBP (Buy this product from Amazon UK)
(Visit our US store here)
Product Description
• Advanced scientific calculator, ideal for ages 11+, especially key stages 3 and 4
• 272 functions - largest number in its class
• Double line, large, high-resolution display with stunning glass-top design
• Advanced DAL logic
• Multi-line playback
• Two-variable statistics plus linear regression
• Factorials, permutations and combinations
• Hard slide-on case
• Digits displayed: 10+2
• Scientific functions: 183
• Factorials
• Memory: 7
• Application: KS3 to A-Level
• Power source: Battery
• Standard deviation
• Multi-line playback
• Uses 2 x LR44 Batteries
• WxDxH: 80×155x13mm
Technical Details
- Battery: Yes
- Clock: No
- Design: Scientific
- Financial Functions: No
- Functions: Multifunction
- Graphic: no
- Mains Power Supply: No
- Printing: No
- Printing Functionality: No
- Programmable: No
- Solar Energy Driven: No
- Tilted Display: No
- Type: Scientific Calculator
Sharp EL-531WB Scientific calculator - 272 functions
Price: £5.25 GBP (Buy this product from Amazon UK)
(Visit our US store here)
March 2nd, 2008 | Posted in Uncategorized | Comments Off
Texas TI83 Plus Graphical schools calculator (£61.00 GBP) - Buy from Amazon: This easy-to-use graphing tool provides all the functionality you need for Secondary maths and science from 11 right through to 18. It also includes advanced statistics and financial features.
Enhanced with Flash technology, this handheld technology gives you the flexibility to add TI-83 Plus software applications (Apps) and additional functionality beyond maths and science, providing long-term value. The TI-83 Plus Teacher Calculator and Viewscreen also mean you can use the calculator as a whole-class teaching and demonstration tool.
Apps give handheld technology additional flexibility.Loading Apps is a simple process, very similar to adding software to a computer. With the TI-83 Plus’ large 160K archive space, you can store up to 10 Apps at one time - so you can enhance your technology to meet your specific needs.
The TI-83 Plus will continue to be an excellent long-term investment with our commitment to provide upgrades to its Operating System. Add capabilities and functionality that will keep your TI-83 Plus working for you for many years. Check the Downloads area on a regular basis to ensure you have the latest version.
Product Description
This easy-to-use graphing tool provides all the functionality you need for Secondary maths and science ? from 11 right through to 18. It also includes advanced statistics and financial features. Click here to view the Graphical calculator buying guide.Enhanced with Flash technology, this handheld technology gives you the flexibility to add TI-83 Plus software applications (Apps) and additional functionality beyond maths and science, providing long-term value. The TI-83 Plus Teacher Calculator and Viewscreen also mean you can use the calculator as a whole-class teaching and demonstration tool.Apps give handheld technology additional flexibility. Choose one of the many Apps now available (and visit http://education.ti.com often for news of additions), and add customized functionality to the TI-83 Plus. Loading Apps is a simple process, very similar to adding software to a computer. With the TI-83 Plus’ large 160K archive space, you can store up to 10 Apps at one time - so you can enhance your technology to meet your specific needs.The TI-83 Plus will continue to be an excellent long-term investment with our commitment to provide upgrades to its Operating System. Add capabilities and functionality that will keep your TI-83 Plus working for you for many years. Check the Downloads area on a regular basis to ensure you have the latest version.
Product Features
- Memory available to user: ROM = 160KB, RAM = 24KB.
- High contrast, 8-line by 16-character display, 64 x 96 pixels
- Graph-table split screen
- Real and complex numbers calculated to 14-digit accuracy and displayed with 10 digits plus a 2-digit exponent.
- Graphs 10 rectangular functions, 6 parametric expressions, 6 polar expressions and 3 recursively-defined sequences with 7 different graph styles.
- The perfect calculator for secondary school
- Now with a large memory and Flash ROM technology, it is possible to upgrade it
- 2 pre-bundled apps: (you can store up to 10 apps)
- CBL /CBR compatible for datalogging
- Finance functions
Technical Details
192 KB memory
24 KB RAM available
8 KB Operating system
160 KB user archive memory
Buy from Amazon
February 18th, 2008 | Posted in Overview, Product Review, Use in education | No Comments
William Seward Burroughs Born 1857 Rochester, N.Y - Died 1898
In 1885, Burroughs filed his first patent for a calculating machine. However, his 1892 patent was for an improved calculating machine with an added printer. William Seward Burroughs invented the first practical adding and listing machine - National Inventors Hall of Fame.
William Seward Burroughs
Inventor of the first workable adding machine, was born in rural New York in 1855.
Burroughs Adding Machine Company
Burroughs Adding Machine Company traced its founding to William Seward Burroughs who invented and patented the first workable adding and listing machine in St. Louis, Missouri in 1885.
Blaise Pascal (1623 - 1662)
Blaise Pascal invented the first digital calculator to help his father with his work collecting taxes.
Calculating Machines
Information on the history of the Calculating Machine, and the inventors including Blaise Pascal, Da Vinci, and more.
Articles on the History of Electronic Calculators
An amazing collection of article, among the many articles listed are: Old Casio Calculators - Heinz Nixdorf - Dr. An Wang - HP or the death of the Slide Rule - The Calculator Wars.
Calculator History
This site includes historical and collectible information for collectors of calculators.
Vintage Calculators
Vintage Calculators presents a gallery of vintage calculators, online calculator stimulations, articles on the history of calculators and more.
Calculator - PC Webopaedia Definition and Links
This page describes the term ‘calculator’ and lists other pages on the Web where you can find additional information.
Original Documents on the History of Calculators
Patent drawings
January 23rd, 2008 | Posted in 1900s to 1960s, History | No Comments
