Key terms

Computing system: Computer hardware, software, and data, which interact to solve problems

Computer hardware: The physical elements of a computing system

Computer software: The programs that provide the instructions that a computer executes

Abstraction: A mental model that removes complex details

Information hiding: A technique for isolating program pieces by eliminating the ability for one piece to access the information in another (Kyaw)

Layers of Computing System


(Kyaw)

The innermost layer, information, reflects the way we represent information on a computer.
Information on a computer is managed using binary digits, 1 and 0.
to understand computer processing we must first understand the binary number system and its relationship to other number systems(Kyaw)

The next layer, hardware, consists of the physical hardware of a computer system.
Computer hardware includes devices such as gates and circuits, which control the flow of electricity in fundamental ways.
Central Processing Unit (CPU) and memory(Kyaw)

The programming layer deals with software, the instructions used to accomplish computations and manage data.
Programs can take many forms, be performed at many levels, and be implemented in many languages.
The main goal is to solve problems(Kyaw)

Operating System (OS) to help manage the computer’s resources.
It helps us interact with the computer system and manage the way hardware devices, programs, and data interact.
Windows 8, Linux, or Mac OS X
These all inner layers focus on making a computer system work. (Kyaw)

It focuses on using the computer to solve specific real-world problems.
We run application programs to make use of the computer’s abilities in other domains, such as helping us design a building or play a game. (Kyaw)

It helps us to communicate with others computers
We use computer technology to communicate, and that communication is a fundamental layer at which computing systems operate.
Computers are connected into networks to share information and resources.
The World Wide Web makes that communication relatively easy. (Kyaw)

Kyaw, Pyae Sone. “Layers Of Computing System”. 2016. Presentation.