Windows 7

1. Microsoft Windows 7 tutorials 2. Module 1- Installation, Upgrading, and Migrating to Windows 7 tutorials 3. Editions of Windows 7 tutorials 4. Hardware Requirements for Installing Windows 7 tutorials 5. You can install Windows 7 in following different ways, including: 6. Consideration for Upgrading v/s Migrating tutorials 7. What is Migration tutorials 8. Migrating User Data and Settings tutorials 9. Performing an Image-Based Installation of Windows 7 tutorials 10.Configuring Disks and Device Drivers tutorials 11. Partitioning Disks in Windows 7 tutorials 12.GUID - GPT Disk tutorials 13.Disk Management tools tutorials 14. Simple Volume tutorials 15. Spanned and Striped Volumes tutorials 16. Maintaining Disks, Partitions, and Volumes tutorials 17. Disk Quota tutorials 18.Working with VHD Virtual Hard Disk tutorials 19. Device Driver in Windows 7 tutorials 20.System Restore tutorials 21.LAST KNOWN GOOD CONFIGURATION tutorials 22.Configure and Trouble shoot Network Connections tutorials 23.What is an IPv4 Address tutorials 24. Note - IPV4 25. IPv4 address classes tutorials 26.Default Gateway tutorials 27.Public and Private IPv4 Address tutorials 28.IPv6 Network Connectivity tutorials 29.IPv6 UNICAST ADDRESSES tutorials 30. IPv4 Address can be assigned by following types tutorials 31.Implementing Name Resolution tutorials 32. Trouble Shooting Network Connectivity tutorials 33. Implementing Wireless Security tutorials 34.Wireless network Technologies tutorials 35.What is Wireless Broadband tutorials 36.IEEE 802.11 tutorials 37.Wireless Network Configuration tutorials 38. Security Types tutorials 39. Implementing Network Security tutorials 40.Configuring Windows Firewall tutorials 41.Ports and Application tutorials 42.Important Application, Protocol and Port Number tutorials 43.Configure Inbound and Outbound Rules tutorials 44. Securing Network traffic tutorials

Wireless network Technologies tutorials

  • 802.11 is a set of standards for implementing Wireless Local Area Network (WLAN). They are created and maintained by IEEE (Institute of Electrical and Electronics Engineers) committee.

  • Most wireless network adaptor (NIC) and Wireless Access Point confirm to standard based on the IEEE (Institute of Electrical and Electronics Engineers) 802.11 Specification.

  • Windows 7 support 802.11a, b, g and n standards. So letís understand multiple variety of IEEE 802.11 specification.


Wireless Standard

Transmission Speed

Transmission Frequency

Effective Indoor range


Up to 54 Mbps

5 Ghz

Appx.25 to 75 feet


Up to 11 Mbps

2.4 Ghz

Appx. 100 to 150 feet


Up to 54 Mbps

S Band ISM

Appx. 100 to 150 feet


Up to 600 Mbps

C-band and S-Band ISM

Appx. 300 feet



  • 802.11a standard came by 1999.

  • It operates in 5 Giga hertz and could give speed upto 54 Mbps.

  • Signals ware absorbed by wall and other solid object due to smaller wave length.

  • Effective range was 25 to 75 feet only.

  • Many users can use it simultaneously.

  • It resulted into less interference and better throughput.

  • However due to high cost, short range and non-compatibility with 802.11b standards, 802.11a was not could not gain wide popularity.



  • standard came around same time with 802.11a during 1999.

  • It operates in 2.4 Giga hertz and could give maximum speed up to 11 Mbps.

  • 2.4 band signals ware interference by other products operating in 2.4 range that include Microwave oven, Bluetooth Devices, Cordless Telephone and radio.

  • Effective range is approximately 100 to 150 feet.

  • However due to interference and fewer simultaneous users 802.11b standards, was largely replaced by 802.11g.



  • standard came around June 2003.

  • It operates in 2.4 Giga hertz and could give maximum speed up to 54 Mbps.

  • Effective range is approximately 100 to 150 feet.

  • Compatible with 802.11a and b standards.

  • 802.11g gives high speed, better signal range and more simultaneous users.

  • Due to above advantages 802.11g is widely used in public places such as Airport, Education campus, Coffee shops and Library.



  • 802.11n Standard was amended in 2009.

  • 802.11n standard is designed improve bandwidth by using MIMO (Multiple Input Multiple Output) Antennas instead of one antennas.

  • It can give highest speed up to 600 Mbps, Best Signal Range, Not prone to interference.

  • Effective range is approximately 300 feet.

  • 802.11n is compatible with 802.11a, b and g.

  • Due to high speed and best signal it is gaining popularity.



  • Though Windows 7 supports 802.11a, b, g and n standards but Wireless LAN speed depends upon capabilities of installed NIC adapter, Capabilities of NIC adapter Driver, WAP Wireless Access Point, Router capabilities, Distance and many more things.