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Technology bites (The internet and web:
Internet Technology
…
Technology bites
The internet and web:
Internet Technology
Internet Communications
Web Technology
Web Applications
Internet technology:
Key Terms
Internet Backbone
Internet Service Provider
(ISP)
Routers
Dial-up Connection
Cable modem connection
DSL connection
DSS connection
Binary number system
Protocols
TCP/IP
IP Address
Client/server
Port
Peer-to-peer (P2P)
Network architectures:
Client/Server
Client/server technology is
the basis of Internet
services such as e-mail
and the Web and uses
server computers to
distribute data to client
applications such as
Internet Explorer.
Peer-to-peer
Do not utilize a central
server but facilitate
communications directly
between clients.
Participants running P2P
software make a portion of
their file system available
to other participants to
access directly.
Web technology
:
Key Terms
Hyperlink
HTTP
Web browser
Web server
HTML
Web authoring software
Cookies
Plug-in
Content Streaming
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E-commerce
E-Commerce refers to systems that support electronically
executed business transactions
3 E-Commerce trends you need to know for a profitable 2015
One third of e-commerce sales are now happening on mobile
devices.
Social ‘discovery commerce ‘ is on the rise.
Roots of E-Commerce:
Key Terms
Electronic Data Interchange (EDI)
Transaction
Transaction Processing System (TPS)
Electronic Data Interchange
(EDI)
EDI uses private communications networks
called value-added networks (vans) to
transmit standardized transaction between
partners and suppliers.
Transaction Processing
:A transaction is an exchange or transfer
of goods, services, or funds A Transaction Processing System (TPS) is an information system that supports and records transactions. Data collected in Transaction Processing Systems feeds into more sophisticated Management Information Systems(MIS) to provide useful information.
Two methods of processing transactions:
Batch Processing
Online Transaction Processing
Batch Processing
Transactions are collected over time and processed
together in batches
Online Transaction Processing
Processing takes place at the point of the sale
Types of E-commerce
Business-to-consumer
(B2C)
Business-to-business (B2B)
Consumer-to-consumer
(C2C)
Buyers Perspective
Consumer review
Web sites can help
shoppers avoid
purchasing mistakes
and pressure
manufacturers to
produce better
products.
Seller’s Perspective
Market Research
Product/Service Production
Marketing and advertising
Payment support
Delivery
After-sales
support
Benefits and Challenges
Farmyard Nurseries -
Taking the business online
expanded its market from
primarily local customers to
customers all around the
world.
Kodak changed its
image from a film
company to a
picture company by
providing products
and tools for digital
photographers
There are challenges to e-commerce too.
Established businesses that wish to expand to
the Internet need to alter systems and business
practices to accommodate the new method of
transaction processing.
There are also issues of security and privacy.
There are social concerns. Not everyone has
equal access to the technology of e-commerce
Microprocessor
Sometimes called a chip or just a processor, combines microscopic electronic components on a single integrated circuit that processes information according to software instructions.
Also known as Central Processing Unit (CPU)
CPU speed how quickly it can carry out such tasks as loading a program, opening a file, and writing to a CD.
CPU Clock speed is usually measured in gigahertz (GHz)
Key components:processor,
memory,
storage,
removable storage
The Bit (binary digit)
Bits are the 1’s and 0’s that allow us to represent, store, and manipulate data
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Bits &Bytes
8 Bits = 1 Byte
Bytes can represent any collection of items using a “look-up table” approach
ASCII is used to represent characters
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Solid state
A flash memory card is a chip that, unlike RAM, is nonvolatile and keeps its memory without the need for electricity.
USB Flash Drives use flash memory to provide high capacity storage through the USB port.
Key components : processor,
memory,
storage,
removable storage,
video memory,
networking,security
I/O concepts
An input device assists in capturing and entering raw data into the computer system.
An output device allows you to observe the results of computer processing with one or more of your senses
Input device:
Keyboard, Mouse, Trackball
Touch screen, stylus, kiosks
Microphone, speech recognition
Gamepad, other game-centered devices
Digital cameras
Scanning devices
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Key components: processor,memory,storage.video storage,video memory,networking,security,os
Multitasking:
Multitasking is the ability of the OS to run several programs or tasks at the same time
Device driver:
Any device that connects to a computer includes associated software called the device driver that must be installed in order for the operating system to recognize and communicate with the device.
Utility programs:
Programs designed to assist the machine in running smoothly, securely, and efficiently:
Virus Detection
Spam and Pop-up blockers
Adware & Spyware protection
Defragmentation
Windows Cleaners
Programs that assist us in maintaining and manipulating system resources:
File Compression (WinZip)
File and Disk Management & Backup
CD/DVD Burners