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Introduction This technical documentation required for upgrade of wired network to wireless network. In this document I search about hardware & software requirements needed for wireless network. Also, it provides recommendation for encryption.

Wireless network and weird network What is the meaning of wireless network and weird network? A wireless network allows devices to stay connected to the network, but roam untethered to any wires. Access points amplify Wi-Fi signals, so a device can be far from a router but still be connected to the network. When you connect to a Wi-Fi hotspot at a cafe, a hotel, an airport lounge, or another public place, you're connecting to that business's wireless network. A wired network uses cables to connect devices, such as laptop or desktop computers, to the Internet or another network. A wired network has some disadvantages when compared to a wireless network. The biggest disadvantage is that your device is tethered to a router. The most common wired networks use cables connected at one end to an Ethernet port on the network router and at the other end to a computer or other device. {1}

Hardware specification Desktop specification: Processer Specification: Type: •	 6th Generation Intel Core i3/i5/i7 •	7th Generation Intel Core i3/i5/i7 Total cache: up to 8 MB cache depending on processor type. Memory Specification: Type: 2133 MHz / 2400 MHz. NOTE: 2133 MHz is applicable only for 6th Generation processors. Connectors: Four DDR4 UDIMM slots. Memory capacity per slot: 4 GB, 8 GB, and 16 GB. Minimum Memory: 4 GB. Video Specification: Video Controller – Integrated: CPU-GPU combo. Video Controller – Discrete: •	1 GB AMD Radeon R5 430 (optional) •	2 GB AMD Radeon R5 430 (optional) •	4 GB AMD Radeon R7 450 (optional) Video Memory: independent card offering. Audio Specification: Controller: Realtek ALC3234 High Definition Audio Codec (integrated, supports multiple streaming). Internal speaker amplifier: Integrated. Storage specification: Hard drive: one 3.5-inch hard drive and one 2.5-inch drive. Solid State Drive: one M.2 Solid State Drive. Optical drive: one slim drive and one 5.25-inch drive. {2}

Laptop specification Processor Options Intel® CoreTM i3, i5 and i7 up to i7-35xxM; Intel® Celeron® Bxxx processors. Operating System Options: Genuine Windows® 7 Home Basic2,5, Genuine Windows® 7 Home Premium Genuine Windows® 7 Professional, Genuine Windows® 7 Ultimate Linux Ubuntu 11.10 Memory Options: DDR3 SDRAM 1600MHz 2 slots supporting 2G, 4GB, 8GB13 DIMMs Chipset: Mobile Intel® HM77 Express Chipset with Broadcom LOM and TruManage™ Mobile Intel® QM77 Express Chipset with Intel LOM and vPro™ Graphics: Options Intel® HD Graphics 3000 for Intel Core i3/i5/i7 2xxxM and Celeron®, Intel® HD Graphics 4000 for Intel Core i3/i5/i7 3xxxM processors Display 14.0” HD (1366x768) Anti-Glare LED, 14.0” HD+ (1600x900) Anti-Glare LED Storage Options: 7200 rpm SATA up to 500GB, Encrypted 7200 rpm 320GB3 , Mobility Solid State up to 128GB , Dell Fast Response Free Fall Sensor (standard on the motherboard) Optical Drive: Options DVD-ROM, DVD+/-RW {3}

NIC card Specification what is NIC card? A NIC is a computer expansion card for connecting to a network (e.g., home network or Internet) using an Ethernet cable with an RJ-45 connector. Network cards can communicate with each other over the same network using a network switch, or if two computers are directly connected. When computers need to connect to a different network (e.g., the Internet), they must be use a router to route the network packets to the correct network. {4} Specification: Hardware features: Interface: PCI Express Dimensions ( W x D x H ): 4.8 x 3.1 x 0.8in. (120.8 x 78.5 x 21.5mm). Antenna Type: Detachable Omni Directional (RP-SMA). Antenna Gain: 2dBi. Wireless features: Wireless Standards: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b. Frequency: 2.400-2.4835GHz Signal Rate: 11n: Up to 150Mbps(dynamic) 11g: Up to 54Mbps(dynamic) 11b: Up to 11Mbps(dynamic) Reception Sensitivity: 130M: -68dBm@10% PER 108M: -68dBm@10% PER 54M: -68dBm@10% PER 11M: -85dBm@8% PER 6M: -88dBm@10% PER 1M: -90dBm@8% PER Transmit Power: <20dBm(EIRP) Wireless Modes: Ad-Hoc / Infrastructure mode Wireless Security: Support 64/128 bit WEP, WPA-PSK/WPA2-PSK Modulation Technology: DBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM Others: Certification: CE, FCC, RoHS Package Contents: Wireless Adapter Detachable Omni directional antenna Resource CD Quick Installation Guide System Requirements: Windows XP/Vista/7/8/8.1/10(32/64bits) Environment: Operating Temperature: 0℃~40℃ (32℉~104℉) Storage Temperature: -40℃~70℃ (-40℉~158℉) Operating Humidity: 10%~90% non-condensing Storage Humidity: 5%~90% non-condensing {4}

Recommendation of encryption What is the meaning of encryption? Network encryption is the process of encrypting or encoding data and messages transmitted or communicated over a computer network. It is a broad process that includes various tools, techniques and standards to ensure that the messages are unreadable when in transit between two or more network nodes. {6}

There are many types of network encryption. So, here is the best WPA/WPA2 – PSK. Wi-Fi Protected Access Pre-Shared Key (WPA-PSK) is a security mechanism used to authenticate and validate users on a wireless LAN (WLAN) or Wi-Fi connection. It is a variation of the WPA security protocol. WPA-PSK is also known as WPA2-PSK or WPA Personal. {7} To encrypt a network with WPA2-PSK you provide your router not with an encryption key, but rather with a plain-English passphrase between 8 and 63 characters long. Using a technology called TKIP (for Temporal Key Integrity Protocol), that passphrase, along with the network SSID, is used to generate unique encryption keys for each wireless client. And those encryption keys are constantly changed. Although WEP also supports passphrases, it does so only as a way to more easily create static keys, which are usually comprised of the hex characters 0-9 and A-F. {8} Recommend encryption technology is WPA/WPA2 – PSK.

Conclusion This technical documentation provides an insight on upgrading so, you are able to expand wired network to wireless network. Also, you can understand NIC card and the recommended encryption.

References {1} https://www.cisco.com/c/en/us/solutions/small-business/resource-center/networking/wireless-network.html#~introduction {2} http://clascsg.uconn.edu/download/specs/O7050.pdf {3} https://www.dell.com/downloads/global/products/latit/dell_latitude_e5430_spec_sheet.pdf {4} https://www.computerhope.com/jargon/n/nic.htm {5} https://www.tp-link.com/il/home-networking/adapter/tl-wn781nd/#specifications {6} https://www.techopedia.com/definition/16121/network-encryption {7} https://www.techopedia.com/definition/22921/wi-fi-protected-access-pre-shared-key-wpa-psk {8} https://www.webopedia.com/TERM/W/WPA2_PSK.html