Processor

A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer. The processor is process our input command and display result by VDU. The term processor has generally replaced the term central processing unit (CPU). The processor in a personal computer or embedded in small devices is often called a microprocessor. The central processing unit (CPU) is the section of a computer system that carries out the commands of a computer program, and is the primary element carrying out the functions of the computer or other processing device. The central processing unit carries out each instruction of the program in sequence, to perform the basic arithmetical, logical, and input/output operations of the system. This term has been in use in the computer industry at least since the early 1960s. The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation remains much the same.

There is and has been many processors on the market, running at many different speeds. The speed is precise in Megahertz or MHz. A single MHz is a calculation of 1 million cycles per second (or computer instructions), so if you have a processor running at 2000 MHz, then your computer is running at 2000,000,000 cycles per second, which in more basic terms is the amount of instructions your computer can carry out. Another important abbreviation is Gigahertz or GHz. A single GHz or 1 GHz is the same as 1000 MHz . For  a bit confusing, so here is a simple conversion :

1000 MHz (Megahertz) = 1GHz (Gigahertz) = 1000,000,000 Cycles per second (or computer instructions).

Motherboard Components

# sockets (or slots) in which one or more microprocessors may be set up.

# slots into which the system's main memory is to be installed (typically in the form of DIMM modules containing DRAM chips)

# a chipset which forms an interface between the CPU's front-side bus, main memory, and peripheral buses

# non-volatile memory chips (usually Flash ROM in modern motherboards) containing the system's firmware or Basic Input and output system (BIOS)

# a clock generator which produces the system clock signal to bring into line the various components

# slots for expansion cards (these interface to the system via the buses supported by the chipset)

power connectors, which receive electrical power from the computer power supply and distribute it to the CPU, chipset, main memory, and expansion cards.

What is mother board ?

The main circuit board of a microcomputer is mother board. The motherboard contains the connectors for attaching additional boards. Typically, the motherboard contains the Central processing Unit, Basic input and output system, memory, mass storage interfaces, serial and parallel ports, expansion slots, and all the controllers required to control standard peripheral devices, such as the display screen, keyboard, and disk drive. Collectively, all these chips that reside on the motherboard are know as the motherboard’s chip set.

An important component of a motherboard is the microprocessor's supporting Chip set, which provides the supporting interfaces between the CPU and the various buses and external components. This chip set determines, to an extent, the features and capabilities of the motherboard.

Computers Hardware

* Component of computer:-

# Main Board (Mother Board)

# Processor

# Random Access Memory (RAM)

# Hard Disk Drive (HDD)

# Floppy Disk Drive (FDD)

# Display Card (AGP )

# Casing (ATX CPU BOX)

# Monitor (VDU Screen)

# Keyboard

# Mouse

# Printer

# Scanner

# Removable disk (Pen drive)

# Microphone

For Multimedia

# Sound card

# Sound Box

# CD-ROM/DVD ROM

For Networking

# Switch/Hub

# Connector

# Kimping Tools.

# Cable

# LAN card

# ADSL Modem or USB Modem

Computer's Hardware

Computer Hardware means all components of computer. The components you can actually see and touch, and would likely break if you threw it out a fields is hardware. As example Key board, Mouse, Monitor, CPU etc is parts of computer or computers hardware. Not every system (computer) has exactly the same hardware. One of the definitions of 'hardware' according to Webster's dictionary is 'major items of equipment or their components used for a particular purpose'.

Network Security

For secure your information and data need network security. Without network security you can not protect your data and information. Now days network security is big headache every network user & controller. Now Network security is common matter of all over computer user world. Network security means in the field of networking, the area of network security consists of the necessities and policies adopted by the network administrator to prevent and monitor unauthorized access, misuse, modification, or denial of the computer network and network-accessible resources. Network Security is the authorization of access to data in a network, which is controlled by the network administrator. Users are assigned an ID and password that allows them access to information and programs within their authority. Network Security covers a variety of computer networks, both public and private that are used in everyday jobs conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access. Network Security is involved in organization, enterprises, and all other type of institutions. It does as its titles explains, secures the network. Protects and oversees operations being done.

Other Types of Area Networks

While LAN and WAN are by far the most popular network types mentioned, you may also generally see references to these others:

1. Campus Area Network - a network spanning multiple LANs but smaller than a MAN, such as on a university campus or local area.
2. Storage Area Network - connects servers to data storage devices through a technology similar to Fibre Channel.
3. System Area Network - links high-performance computers with high-speed connections in a cluster configuration. Also known as Cluster Area Network.

Types network

There are three types networks:

1. Local Area Network

2. Metropolitan area network

3. Wide Area Network & Wireless Lans & Wans

1. Local Area Network: (LAN) Which is which is usually a small network forced to a small geographic area. An example of a LAN would be a computer network within a building. A LAN connects network devices over a relatively short distance. A networked office building, school, or home usually contains a single LAN, though sometimes one building will contain a few small LANs (perhaps one per room), and occasionally a LAN will span a group of nearby buildings.
2. Metropolitan area network: (Man) which is used for medium size area. examples for a city or a state. A WAN is a geographically-dispersed collection of LANs. A network device called a router connects LANs to a WAN. In IP networking, the router maintains both a LAN address and a WAN address.
3. Wide area network: A WAN differs from a LAN in several important ways. Most WANs (like the Internet) are not owned by any one organization but rather exist under collective or distributed ownership and management. Wireless LANs and WANs:- (WLAN & WWAN) are the wireless the same of the LAN and WAN.

What is computer networking

Networking means interconnected network. Networking is the system of linking computing devices together with hardware and software that supports data communications across the devices. A computer network is a system in which computers are connected to share information and resources. Example printer, stores device, scanner, pen drive, dvd etc. The connection can be done as peer-to-peer or client & server. This web site reviews the techniques you can use to set up and possibly manage a network for home or a small business or area. Computer networks are design of two types of high-level network design are called client server & peer to peer. Client-server networks feature centralized server computers that store email, Web pages, files and or applications. On a peer-to-peer network, conversely, all computers tend to support the same functions.