027 - What is Computer Hardware

Hardware is the computers peripherals that are part of the computer. Hardware is a internal and external components of the computer are called hardware. Hardware is physical in nature that possible to touch. Hardware is constructed using a raw materials.

The tangible component of an Electronic Data Processing. Hardware is the physical parts of a computer, as distinguished from the data it contains or operates on, and the software that provides instructions for the hardware to acoomplish tasks.

Two Hardware Categories

Internal Hardware • is a term used to describe a component device that is installed inside the computer.
EX. of Internal Hardware • Processor, HSF, Motherboard, Memory, Hard drive, Video card, Audio card, Network card, Optical drive, Power supply, Cables, Wires and other internal components.

External Hardware • is a term used to describes a peripheral device that is installed outside of the computer.
EX. of External Hardware • Casing, AVR, UPS, Monitor, Mouse, Keyboard, Gamepad, Pen tablet, Webcam, Headset, Speaker, Microphone, Projector, Modem, Router, Switch, Printer, Scanner, Copier and other external peripherals.

Elements Of A Hardware System

01 Central Processing Unit • performs all types of data processing operations, it controls the flow of data throughout the computer system.

Control Unit • monitors the entire bodily functions of the computer, ensuring a consistent flow of continuous data.
Arithmetic/Logic Unit (ALU) • performs arithmetic operations such as addition, subtraction, division and multiplication as moving, shifting and comparing of data.
Memory Unit • a random-access storage unit that holds and manages every data processed in a computer.

CPU Processes

A Input Operation • data is read by an input device at the CPU’s signal.
B Output Operation • data is transformed into a more visible, comprehensible and even tangible format thru the use of hardware devices like a monitor, speakers, printer and other peripherals.

C Processing Operation

C1 Data Transfer Operation • Data is transported to and from input and output areas.
C2 Arithmetic Operation • performs mathematical operations like addition, subtraction, multiplication and division.
C3 Logic Operation • able to perform basic decision-making skills such as determining the value of a number.

02 Input Unit • devices used to connect machines with each other. These units feed the data from outside sources into the electronic data processing system.
03 Output Unit • devices used to present the data processed by the electronic data processing system into a more comprehensible and even tangible form.

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