Hardware and networking basics pdf


 

Tools for teaching computer networking and hardware concepts / Nurul Sarkar, . learn computer networking and hardware fundamentals better and feel more. Lauren has decided to review basic network concepts with her coworkers as hardware or software failure that causes information or applications to be. Networking concepts and hardware. Basic Communications Model Standards are needed at all Layers. User Layer. Application Layer. Computer (Transport).

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Hardware And Networking Basics Pdf

Technology Education. Network Basics Figure: The definition of a computer network: a set of transmission paths . Network Hardware. • Network interface. Physical (Hardware) Networking Components. to familiarize the reader with the fundamentals of computer architecture, networking, and computer. HARDWARE & NETWORKING (6 WEEKS). 1. COMPUTER HARDWARE. Introduction to basic electronics, subassembly of PC. Subassembly of Motherboard.

Terrestrial microwaves are in the low gigahertz range, which limits all communications to line-of-sight. These Earth-orbiting systems are capable of receiving and relaying voice, data, and TV signals. Cellular and PCS systems use several radio communications technologies. The systems divide the region covered into multiple geographic areas. Each area has a low-power transmitter or radio relay antenna device to relay calls from one area to the next area. Wireless LANs use spread spectrum technology to enable communication between multiple devices in a limited area. IEEE Free-space optical communication uses visible or invisible light for communications. In most cases, line-of-sight propagation is used, which limits the physical positioning of communicating devices. It was implemented in real life in Main article: Node networking Apart from any physical transmission media there may be, networks comprise additional basic system building blocks, such as network interface controllers NICs , repeaters , hubs , bridges , switches , routers , modems , and firewalls. Any particular piece of equipment will frequently contain multiple building blocks and perform multiple functions.

This type of memory is more economical. The term static is derived from the fact that it does not need to be refreshed like DRAM. This type of memory is non-volatile.

The information is stored permanently in such memories during manufacture.

A ROM, stores such instructions that are required to start a computer. This operation is referred to as bootstrap. The different types of ROM are given below. The MROM cannot be programmed by the user.

PC Hardware & Networking ruthenpress.info | Computer Network | Internet

EPROM is erased by exposing it to ultra-violet light for a duration of up to 40 minutes. It can be erased and reprogrammed about ten thousand times. Both erasing and programming take about 4 to 10 milliseconds. Secondary Storage External Storage Devices Floppy diskettes, hard disk, tapes and optical disks come under the category of external storage devices or ancillary storage devices.

These devices are very sensitive to environmental conditions humidity and temperature as well as to external magnetic fields and need to be stored carefully. Information on a floppy disk is recorded in the magnetized states of particles of iron oxides evenly placed upon concentric circles known as tracks. It contains a stack of metal platters, each coated with iron oxide, that spin on a spindle and the entire unit is encased in a sealed chamber.

C Magnetic Tape This is plastic tape, usually made of Mylar that is coated with iron oxide, thereby enabling the introduction writing ; retention memory and reading of magnetically recorded information. The best use of tape storage is for data that you do not use very often.

If a peripheral device is disconnected, the computer will still be able to work; only functions performed by this peripheral device will not be available. Here are the most used types of peripheral devices: A Keyboard The most common and very popular input device which helps in inputting data to the computer. It consists of keys that are capable of inputting alphabets, numbers and special characters.

You can also navigate using the keyboard and perform shortcut functions. B Mouse Mouse is the most popular pointing device and cursor-control device having a small palm size box with a round ball at its base which senses the movement of mouse and sends corresponding signals to CPU when the mouse buttons are pressed. It forms images from tiny dots, called pixels that are arranged in a rectangular form.

The sharpness of the image depends upon the number of pixels. D Printer Printer is an output device, which is used to print information on paper.

Impact Printers: The impact printers print the characters by striking them on the ribbon which is then pressed on the paper. Non-Impact Printers: Non-impact printers print the characters without using ribbon. These printers print a complete page at a time so they are also called as Page Printers. Laser Printers, Inkjet Printers. E Joy Stick It is a device used to move cursor position on a monitor screen.

Networking Basics: Part 1 - Networking Hardware

F Scanner A scanner allows you to scan printed material and convert it into a file format that may be used within the PC. G Plotter A plotter is used to create high-quality visuals on paper. A plotter gives a hard copy of the output. It draws pictures on a paper using a pen. It can be used to create presentation-charts, graphics, tables and high quality technical drawings.

There are two types of plotter. Basics of computer 1. Organization of computer. Software and hardware. Basic networking concepts, 2.

The OSI model 2. Opening the PC and identification.

Networking hardware

Email Servers. Introduction to servers and network security 6. Hubs etc. Recovery and backup. Leased Line.

Inside the PC: Files servers. Network troubleshooting. Setting IP addresses. Types of Internet connections: Proxy servers etc. Essential security measures. Assembling and disassembling. PING test.

Networking Basics: Part 1 - Networking Hardware

Basics of Internet and Intranet: Wired and Wireless technology. Social Networking. Search Engines. Introduction to various networking devices: Study of different blocks. Network basic and configuration: Types of servers: Sharing files and folders. Flag for inappropriate content. Related titles. Jump to Page. Search inside document. Introduction about computer 2 2 2. Basic Networking concepts 6 10 3. Inside the PC 4 4 5.

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