Casio HS-4


Casio HS-4 is a serie of solar-powered pocket-size basic calculators with a single-row 8 digits display, produced by Casio.

Options

Casio HS-4 is a latest generation of Casio's cheapest basic calculators with only 6-functions:
The rest of the buttons are intended for:
  • All Clear, also serves as power ON button on long hold.
  • Clear latest output or input to correct it.
  • Decimal number input using digits buttons and decimal separator button.
  • Switching positive/negative number sign for input and output.
  • Independent Memory operations : clear, read, subtract, add.
  • Total result output and on-the-go previous steps result output.
On display there ara indicators of negative number, use of memory register and error notification.

Models

Data sources: official websites, collectors websites, approved calculator lists by educational institutions.
  • HS-4 has 5×5 keyboard with a enlarged addition button, and abbreviated inline indicators.
  • HS-4A is round-shaped with a rearranged keyboard layout to 4×6.
  • HS-4D is round-shaped with all memory operations buttons placed on the top row.
  • HS-4E has rearranged keyboad 4×6 layout with a usual size addition button, enhanced with flip over top.
  • HS-4ER is a Euro calculator with rearranged 5×1+4×5 layout, enhanced with an enlarged display and abbreviated headline indicators.
  • HS-4G is enhanced with headline indicators shown as full words
Casio produced many similar solar-powered, battery-powered and dual-powered models, were some models has small changes or minor additional features.
Study Cal is a dual-powered rugged school edition of HS-4 serie for daily use, enanced with a key rollover function, thousands separator and actual operation signs indication. It is comparable to Texas Instruments TI-108.
OH-450L/460L is an enlarged overhead projectable semitransparent calculator version of SL-450L/460L.

Educational use

Calculators of this serie approved for use in most of exams in many countries, and in cases were the use of scientific, programmable and graphing calculators is prohibited. Some testing centers provides verified calculators from own storage if the use of personal calculators is not permitted by exam policy.
In some cases approved scientific non-graphing non-programmable calculators permitted, ortherwise use of any calculators totally prohibited.

Alternatives

Approved alternatives are Texas Instruments TI-108, Sharp EL-233/240/243 series, or other 4/5-function calculators with square root function.
Casio Film Card calculators was a serie of ultra-slim solar-powered basic calculators in a credit card size, followed by other manufacturers.
Casio fx-82 Solar/fx-260 Solar serie is the cheapest solar-powered non-graphing non-programmable scientific calculator produced by Casio.

Manuals

  • . mercury.educ.kent.edu. «TEACHER NOTE: The Casio OH-260 Overhead can be used directly on an overhead projector to help learners follow along and practice as you demonstrate the calculator skills required on the 2002 GED. Also, Steck-Vaughn 2002 GED Skill Book for Mathematics: The Calculator can be used for additional practice.»
  • : Operating instruction.
  • : How to use the calculator.
  • : Euro currency conversion.
  • : General catalog).
  • key used for?]
Category:Casio calculators
Category:Products introduced in 1995