Page 113 - Computing E-Book Grade 7

The City School 2021-2022

5.1. Overview

Computer programming is a way of giving

computers instructions about what they should
do next. These instructions are known as code,

and computer programmers write code to solve
problems or perform a task.

The end goal is to create something: that could
mean anything from a web page, or a piece of

software, or even just a pretty picture. That’s
why computer programming is often described

as a mix of art and science; it’s technical and
analytical, yet creative at the same time.

5.2. Flowcharts and Algorithms

Algorithms and flowcharts are two different tools used for creating new programs,
especially in computer programming. An algorithm is a step-by-step analysis of the

process, while a flowchart explains the steps of a program in a graphical way.

Algorithms

To write a logical step-by-step method to solve Making a PB&J Sandwich

the problem is called an algorithm. In other undo the twist tie
get out two slices of bread
words, an algorithm is a procedure for solving get out two slices of bread
place them on a plate
problems. In order to solve a mathematical or open the jelly jar
scoop them out with a knife
computer problem, this is the first step of the spread jelly on one slice
wipe off the knife
open the peanut butter jar
procedure. An algorithm includes calculations, scoop some out with a knife
spread peanut butter on the other
reasoning and data processing. Algorithms can set the knife down
pickup each of the slices
keep the dry sides on the outside
be presented by natural languages, pseudocode put the slices together
place the sandwich back down
and flowcharts, etc. pick the knife back up again
cut the sandwich into two halves

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