Computers compute.
They perform computation.
They execute algorithms on/with data.
They input data, process it, and output (some of) the processed data, i.e. results.

Computer stores data and operates on/processes it.

The computer, under the control of the running program,
executes the CPU/machine instructions that is the software.

Most of the data processed by a program comes from outside 
the program, i.e. it is read/input to the program from input devices or files.
The (final) result data of the processing is written/output from the
program to output devices, including files.

Calculations:
  Arithmetic: addition, subtraction, multiplication, division.
    also remainder, exponentiation, square and other roots,
    round, truncate, logs, trig, ...  (All math operations boil down to addition?)

  Comparison/Relational: compare two values for equal/not equal, less than, etc.

  Logical/Boolean: and   or   not

  Conversion between data types

Comparison and logical operations are mostly used to ask a question whose
answer is true or false which is used to determine which instruction(s) to do next.
i.e. selection and iteration.


Python as a higher-level language as strings, lists, sets, tuples, dictionaries, etc.
and operations on them (e.g. sum, length, min/max, search, sort, etc.) are primitives. 


Computers on desk- and lap-top, in hand, on wrist, in body.
ATM, POS, appliances, planes trains and autombiles, 
Bank, credit/debit card, finance
Web and Cloud servers
Utilities: electricity, water, gas, sewage
Smart home, IoT
Factory machines and robots

Programmers are programming a program.
SW engineering, SW developing by developers, coders
Writing SW