What are Different Types of Computer Hardware

What is Hardware?
The physical parts of a computer are called hardware. Hardware can be touched or seen by us. For example, hard disk, mouse, keyboard, CD, CD-ROM Drive, Floppy Disk, Speakers, Modem and Printers - all are computer hardware.

Explain different types of computer hardware

Different types of hardware components on the basis of the functionality

they provide are as follows:

1. Input devices
Input devices are used to enter data and instructions into computer. Examples of input devices are:
Keyboard, mouse, scanner, digital camera etc.

Microphone


Mouse

Keyboard

2. The Central Processing unit
Central processing unit is the brain of the computer. It is also called CPU or Processor. Intel is the leading manufacturer of microprocessors. For example, Intel Pentium IV 3.2 MHz is an example of a CPU. You can see the images of processors / Micro processors or CPUs.

Images of CPU or Microprocessor or simply Processor

3. Output devices
Output devices are used to show the results of processing to the user. For example monitor, printer, plotter, speaker and data projector are out put devices.

Speakers

LCD Monitor

Printer

4. Memory chips
Memory is a component of a computer to store data and instructions. RAM is an example of memory chip. It stands for Random Access Memory. Every program to be executed is loaded in RAM from hard disk. CPU executes the programs loaded in RAM.RAM is a temporary memory, all data and programs are lost from RAM, when computer is turned off. ROM stands for Read Only Memory. ROM is permanent memory chip; we cannot change or delete its contents. It is a non-volatile memory.

ROM shape 1

RAM

ROM shape 2

5. Storage devices
Storage Devices are used to store large amounts of data permanently. For example: hard disk, CD, DVD etc. are storage devices. Moreover, Zip Disk and Floppy disk is also considered as storage devices.

Hard Disk

DVD ROM

Floppy Disk

ZIP Disk

CD ROM

6. Communication devices
Communication devices are used to send and receive data from one computer to another. For example Modem, Network Interface Card, Hub, switches, routers, gateways and even networking cables are included in communication devices

Wireless PCI NIC Card

External Modem

LinkSys Router

Computer Hardware Concepts

2.1 What are Different Types of Hardware
2.2 What are Different Types of Input Devices
2.3 Explain Different Types Of Output Devices
2.4 Explain Parts of CPU and its Working
2.5 What are Dual Devices or Both Input/ Output Devices
2.6 What is RAM, Explain Different Types of RAM
2.7 What is ROM Explain Different Types of ROM
2.8 Discuss Differences Between RAM and ROM
2.9 Explain different types of storage devices
2.10 What are Pointing Input Devices
2.11 Different Types of Mouse Input Device
2.12 Types Of Scanners Input Device

Explain Different Types Of Data

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What are Dual Devices or Both Input/ Output Devices

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Explain Star Network Topology With Advantages and Disadvantages

Topic: Explain the Working Star Network Topology With Advantages and Disadvantages Star Topology Star Topology is the most popular and widely used network topology in local area networks . In star topology , all computers are connected with a central device known as HUB or Switch. Now-a-days Hubs are often replaced by Fast Network Switches. The working of Star Topology The sender computer sends data to the hub. The hub sends it to the destination computer. So, all data communication is managed through HUB or Switch. In a star network, each node (file server, workstations, and peripherals) is connected to a central device called a hub. The hub takes a signal that comes from any node and passes it along to all the other nodes in the network. The star topology reduces the chance of network failure by connecting all of the systems to a central node. What is Star topology? Advantages and Disadvantages of star topology Note: The major difference between ...

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