What is a HP-11C?

What is a HP-11C?

The HP-11C was a mid-range scientific programmable calculator. Compared to the previous series it would fall between the HP-33E/C and HP-34C. It also included two new features: a built-in random number generator and a backspace key that allowed numbers to be corrected a digit at a time.

When did the HP-11C calculator come out?

1981
According to Mier-Jedrezejowicz, the HP-11C was introduced in 1981 and discontinued in 1989.

How do I reset my HP-11C calculator?

HP11C Calculator

1. Reset: With power off, hold down ON. Press and hold subtract key. Release ON. Release subtract key. It should say “Pr Error.”
2. Remove the batteries for at least 12 hours.
3. Remove the batteries and short the calculator battery contacts for a few seconds with a paperclip or similar conductor.

Are HP calculators good?

The HP 300S+ scientific calculator is the perfect choice for cash-strapped students who won’t use a calculator for much outside of class and tests. This calculator is a great pick for math, trigonometry, statistics, and science applications. It’s a low-cost option that still manages to pack in a ton of features.

What kind of calculator is the HP 11C?

The HP 11C is a mid range scientific programmable calculator with two features of a built-in random number generator and a backspace key to correct a digit at a time.

What kind of user mode does the HP 11C have?

The HP-11C also included a limited user definable keyboard so that the user mode is in effect the gold shifted labels A-E are swapped with the unsifted math functions on the same keys. They are all allowed 5 user programs to be invoked with single keystrokes.

What was the indirection of the HP-11C?

The HP-11C provided indirection via a dedicated I register like the HP-34C. The I register itself was controlled by STOring or RCLing I and indirection was achieved by STOring or RCLing (i).

How many programs can be invoked on a hp 11C?

They are all allowed 5 user programs to be invoked with single keystrokes. The HP-11C has 63 lines of permanent program space. As programs grew larger than 63 lines, registers were converted into additional program space starting at R.9 and ending at R0. The HP 15C is an advanced scientific programmable calculator.