| Introduced | October 1985 |
|---|---|
| Discontinued | 1988 |
| Calculator | |
| Entry mode | Infix |
| Precision | 13 digits |
| Display type | |
| Display size | 96 × 64 pixels/8 * 16 characters |
| Programming | |
| Memory register | 26 numbers 78 numbers (maximum) |
| Program steps | 422 bytes |
| Other | |
| Power supply | 3 × CR2032 Lithium |
| Dimensions | 165 mm × 89 mm × 15 mm (6.5 in × 3.5 in × 0.6 in) |
Innovative products bring joy, create new lifestyle and pave the way for related economies - especially, if they have been developed by CASIO. Experience how creativity becomes contribution. The Casio F-91W is a digital watch manufactured by Japanese electronics company Casio.Introduced in 1989, it is popular for its simplicity, reliability, and unpretentious clean design. Due to this reason, it is still in production with the same design. Annual production of the watch is 3 million units per year. The F-91W is a part of the Casio F-series watches. Casio F91W-1 Manual Page: 1. Ask question. 1: Double click to zoom. Operation Guide 10B+7L(V er.C) PM. Reading the display Regular timekeeping. Please read the manual and try again. Ask question. This manual is available in your mobile. Questions Replies 0. 2018 years ago. How do I change. The Casio F-91W is a quartz digital watch, manufactured by the Japanese firm Casio 2 Operation, 3 Claimed use in terrorism, 4 Variants, 5 References, 6 External links There are the options of an hourly time beep and a single daily alarm. Retrieved May 22, 2013. Jump up ^ 'Manual' (PDF). Casio 5 Alarm Watch Manual.
Jun 09, 2015 This blog post is about how to set the time on the Casio F-91W watch and includes a review. Introduction As part of a collection of birthday presents I purchased for my wonderful girlfriend last year, I purchased a purple Casio watch. We often are out and about, so if.
The Casio FX-7000G is a calculator which is widely known as being the world's first graphing calculator available to the public. It was introduced to the public and later manufactured between 1985 and c. 1988.[1] Notable features are its ability to graph functions,[2] and that it is programmable. The calculator offers 82 scientific functions and is capable of manual computation for basic arithmetic problems.[3]
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- 1Features
- 2Display and Exterior
Features[edit]
Mathematical[edit]
The calculator can compute basic arithmetic functions with a precision up to 13 digits.[1] Many functions integrated into the calculator include arithmetic and algebraic computations such as:
- trig functions[3]
Other specialized functions also implemented into the calculator include hyperbolic and statistical functions, binary/octal/hexadecimal/sexagesimal conversions and graph plotting.[4]
Programming[edit]
Like many Casio calculators, the FX-7000G includes a programming mode,[2] in addition to its display and graphing mode. It holds 422 bytes of programming memory,[5] less than half a kilobyte. However the calculator does allow for expanded/additional memory by a method of reducing the number of steps within a program. This is done by optimizing the number of steps a program has to fill a single unit of memory, instead of several.[3] The user may save any program they create or are in the process of creating in one of ten programming slots,[6] a feature also used in the Casio BASIC handheld computer.
The calculator uses a tokenized programming language (similar to the earlier FX-602P) which is well suited to writing more complex programs, as memory efficiency is a priority. Tokenization is performed by using characters and symbols in place of long lines of code to minimize the amount of memory being used. The User Manual programming catalog is written in these symbols,[6] allowing for lengthier programs to be written with less effort and less memory. One example is a program which estimates a definite integral through the use of Simpson's Rule; this can be found within the user manual for reference.[6]
The calculator has 26 numeric memories as standard. Additional memories can be created by reducing the number of bytes available for programs. Using this facility allows a total of 78 memories maximum.
Casio F-91w Set Time
Graphing[edit]
The calculator has a built in graphing feature which is unique to its model. The calculator can display either built-in graphs that are already programmed or display a user defined graph.[7] The user also has the option to rewrite any of the previously programmed graphs.[7]
Statistical graphs can also be generated: bar graphs, line graphs, normal distribution curves, regression lines.[5]
Display and Exterior[edit]
Display[edit]
The FX-7000G incorporates an LCDDot Matrix design via the display window. When set into character mode the calculator can display up to sixteen characters on each of its eight display lines.[3] This sixteen character by eight line display is screened on the 96 × 64 dot matrix.[3] The LCD is not capable of colour or grey scale display.
Exterior[edit]
A black casing surrounds the calculator along with a metal panel implemented on the rear; a large plastic screen protects the LCD display window as well. Keys are labeled and printed on orange, green, blue, red, and black malleable buttons.[1]
Measurements[edit]
The calculator's dimensions (width, height, depth) are 83.5 mm × 167 mm × 14 mm (3.29 in × 6.57 in × 0.55 in). It has an approximate mass of 155.5 g (5.49 oz) including batteries.[1]
Power[edit]
The Casio Fx-7000G needs a 9.0 volt DC currentlithium battery supply provided by 3 CR2032 type cells. The calculator does not accept an AC adapter and only uses batteries. The average battery life is around 120 hours which is shorter in length compared to similar models.[1]
The power-on switch is a small slider half-way up the left-hand side.
The lower keys have the traditional Casio layout. The EXE key would execute the sum on the keyboard. The Ans key could be used to represent the last answer; simple iterative functions could be built up.
The upper keyboard has the main function keys. The SHIFT and ALPHA keys are used to access the many different functions each key could be.
The power-on screen displays system mode, calculation mode, angle unit and rounding. These could be changed by pressing the MODE button, or SHIFT then MODE buttons, as shown on the writing below the screen.
Casio F 91w User Instructions
See also[edit]
References[edit]
- ^ abcde'Vintage Technology'.
- ^ ab'Manual: Chapter 4'(PDF). Archived from the original(PDF) on 2003-12-16.
- ^ abcde'Manual: Chapter 1'(PDF). Archived from the original(PDF) on 2004-06-15.
- ^'Manual: Chapter 2'(PDF). Archived from the original(PDF) on 2005-12-16.
- ^ ab'fx-7000G Owner's Manual: Specifications'.Missing or empty
url=(help) - ^ abc'Manual: Chapter 5'(PDF). Archived from the original(PDF) on 2003-12-17.
- ^ ab'Manual: Chapter 3'(PDF). Archived from the original(PDF) on 2003-12-16.
External links[edit]
- Casio FX-7000g Page on ledudu's casio library
- Manual in pdf at the Wayback Machine (archived May 9, 2013)