Computer Hardware Components | Internal Hardware ~ A2Z Computer

Hardware vs Software

Computer Hardware is the physical part of a computer system, which we can touch and feel, such as CPU, mouse, keyboard, etc.

In other hand, Computer software is a set of commands and instructions that can be stored and executed by the hardware. E.g., Operating System (OS), MS-Word, Adobe Photoshop, etc.

*Internal Hardware*		*External Hardware*
Those hardware parts are present inside the CPU box, are called Internal Hardware. Examples Processor (CPU) Motherboard RAM ROM Graphic Cards Hard Disc		Those hardware parts are present outside the CPU box, are called External Hardware. Examples Mouse Keyboard Monitor Printer Scanner USB Flash Drive (Pen drive)

Processor / Microprocessor (CPU)

A processor (CPU) is the logic circuitry that responds to and processes the basic instructions and commands to run a computer. It is called the brain of a computer. The CPU is seen as the main and most crucial Integrated Circuit (IC) chip in a computer, as it is responsible for interpreting most of computer’s commands. Most processors today are multi-core, which means that the IC contains two or more processors for enhanced performance, reduced power consumption and more efficient simultaneous processing of multiple tasks.

Intel Core I7 Cpu Processor

The CPU has the following three main parts to perform all operations:

CU (Control Unit) – It controls the flow of data within the system. It controls and monitors communications between the hardware attached to the computer.
ALU (Arithmetic and Logical Unit) – CPU performs all the arithmetic and logical operations using ALU. ALU takes help of accumulator to perform all these.
MU (Memory Unit) – It holds all the data and programs that is currently using.

Motherboard

Motherboard is the main printed circuit board (PCB) in a computer. The motherboard is a computer’s central communications backbone connectivity. It has a unique code that can be written in the Basic Input / Output System (BIOS) of a computer to ensure that system restore. You will see many hardware parts are attached with motherboard like, CPU, RAM, Hard Disk, PCI Slots, etc.

RAM (Random Access Memory)

RAM

It is type computer hardware that is used to store the information and then process that information. It stores data temporarily. It is known as volatile memory because it losts its content as power goes off. It is read and write memory. There are mainly two types of RAM – SRAM (Static RAM) and DRAM (Dynamic RAM).

ROM (Read Only Memory)

ROM Chip

It is a type of storage medium that permanently stores data on personal computers (PCs) and other electronic devices. It is a non-volatile memory because it stores data permanently. ROM is read-only, so its content cannot be changed or erased after storing. The types of ROM is –

PROM (Programmable ROM)
EPROM (Erasable Programmable ROM)
EEPROM (Electronically Erasable Programmable ROM)

RAM vs ROM

RAM

RAM stands for Random Access Memory.
RAM is a volatile memory.
It is a read and write memory.
The content gets erase once the power goes off.

ROM

ROM stands for Read Only Memory.
ROM is a non-volatile memory.
It s a read only memory.
The content remains same as the power goes off.

Graphics Card

A Graphics Card is a piece of computer hardware that produces the image you see on a monitor. The Graphics Card is responsible for rendering an image to your monitor, it does this by converting data into a signal your monitor can understand.

Hard Disc

Internal Hard Disc

External Hard Disc

Hard Disc is an optical disc that is used to store the data in it. The Hard Disk can be pre-installed in CPU or can be used as an external device. The Hard Disc is the non-volatile memory that means the data stored in it permanently and does not erase when the system is shut down. Every Hard Disk has a certain processing speed which varies from 4200 – 15000 rpm (rate per minute). The higher the rpm more is the processing speed of a hard disc.

Author

Hi, Its me Hafeez. A webdesigner, blogspot developer and UI/UX Designer. I am a certified Themeforest top Author and Front-End Developer. I'am business speaker, marketer, Blogger and Javascript Programmer.

Ads

Computer Hardware Components | Internal Hardware