2. "Have you ever wondered
how video games or apps on
your phone are created?"
3. What is computer programming?
Computer programming is a process where
programmers provide digital instructions, or code,
for computers to complete various tasks. Using
different programming languages, programmers
can write a script to create an image, webpage,
piece of software or function.
4. What is a computer program?
• A program is a sequence of commands. Each command
causes the computer to perform a specific action. Every
action in a computer is a precise set of electrical signals.
• When a computer program is correct and the commands
make the computer do what the programmer intends, the
computer successfully completes a task.
6. Application Programs
These programs perform a particular function
directly for the users. Some of the common
application programs include Email, web
browsers, gaming software, word processors,
graphics software, media player etc.
7. System Programs
The system programs are used to program the
operating system software.
System programs provide software that are used
by other systems
Some examples of system programs are operating
system, networking system, web site server, data
backup server etc.
8. Two Major Components of
Computer System
•Hardware - It is composed of electronic and
mechanical parts.
•Software - is the intangible part of a
computer. It consists of data and the
computer programs.
9. Hardware
• CPU – the heart and brain of the computer.
• Memory - is any physical device capable of storing information
impermanent or permanently.
- Main Memory –is a device used to keep information for
immediate use in a computer. It is not used for long-term storage. It is
sometimes called the RAM
(Random Access Memory).
- The Secondary Memory - these are the storage devices such as
hard drives and other removable storage media such as flash drives.
10. Hardware
• Input & Output Devices – allow the computer
system to interact with the outside world by
moving data into and out of the system.
Examples of input devices are keyboards, mice and
microphones. Examples of output devices are
monitors, printers and speakers.
11. Software
• is the program that a computer uses in order to
function. Programs acts like instructions for the
processor. It is kept on some hardware device like
a hard disk, but it itself is intangible.
12. Basic Programming Concepts
• Algorithm: A step-by-step set of instructions for
solving a problem.
• Variables: Containers for storing data
• Control structures: Instructions that control the
flow of a program (e.g., loops and conditionals).
