Shannon

Communication method	AKA	Description	Uses	Advantages	Disadvantages	Bandwidth	frequency	Date introduced
Bluetooth	(IEEE) 802.15.1 standard	Bluetooth is a short range wireless technology that is designed so that you will not to use cables between devices.	Can be widely used for headsets, music players, printers, phones, cameras, and laptops.	Low cost.	Short range.	115 Mbps.	2.4 to 2.485 GHz.	September 1998.
Infrared	IR	Infrared wireless technology is low power, short range wireless technology.	Can be used for Multimedia projector PDA Printer Remote control Wireless mouse Wireless keyboard	It is practical, short range connection which is free.	Limited to only be able to use it at a few feet or meters/slow.	155.2 Kbps.	36 KHz.	Autumn 1987.
Cellular WAN	GPS, SMS.	Cellular WAN connections are a powerful two way wireless networks.	Enables the transfer of voice, video, and data simultaneously. It also enables the use of laptops and portable devices remotely	Powerful	Slower than DSL cable connections.	200 Kbps	800- 1900 Mhz.	Late 1970’s.
Wi-Fi	IEEE 802.11a-n wireless.	Wireless Fidelity (Wi-Fi) is a wireless technology that provides simple connection from anywhere within the range.	Laptops, PDA’s, and mobile phones.	Simple solution for network connectivity because ease of access/ work up to 300ft away.	Concerns with security.	54 Mbps	2.4-5 GHz	1999-2006
Satellite		Satellite Internet connections use two-way data channels. One channel is used for uploading and another for downloading. Both download and upload can be accomplished using a satellite connection.	High speed broadband.	High speed.	Adverse weather conditions can interfere with satellite reception.	Download speeds are typically in the 500 Kbps range, while uploads are around 50 Kbps.	500 Kbs, 50 Kbs.	6-6 GHz

Windows XP Professional Edition-Advanced security

Steps to create an answer file:

Firstly you will need to log onto the computer, and then insert the Windows XP Professional CD in the CD-ROM drive. A second window will appear and you will need to click Perform additional tasks.

Now click Browse this CD then:

• Double click the Support folder.
• Double click the Tools folder.
• Double click Deploy.CAB
• Highlight all of the files by clicking Edit-Select All.
• Click Make New Folder to create a folder on the CD to C:\Deploy.
• Browse to: \Deploy

 

Thirdly double click setupmgr.exe.

  

              STEP 4- Then the “Setup Manager” window appears.

Click Next.

The Create new button should be checked by default.

Click Next.

 

 

 

 

 

 

 

 

Click the unattended setup be checked by default.

Note that a CD-based answer file name must be Winnt.sif.

Click the Windows XP Professional radio button and then click next.

 

 

 

 

Click the Fully automated radio button, and then click next.

Click the Set up from CD radio button and then click next.

Click the I accept the terms of the License Agreement checkbox, and then click next.

  

 

Click Name and Organisation in the list on the left.

Type the name and the organisation name provided by your instructor. 

Click Next.

 

 

 

 

Click Time Zone in the list on the left.

Click the time zone for your location from the “Time Zone”. Drop-down box and then click Next.

  

 

Highlight Product Key in the list on the left.

Type the computer name provided by your instructor in the “Product Key” fields.

Click Next.

 

 

Click Computer Names in the list on the left.

Type the computer name provided by your instructor in the “Computer name” field and the click Add.

The computer name will the display in the “Computers to be installed” field.

Click Next.

 

 

 

 

 

 Click Administrative Password in the list on the left.

Type your first initial of your first name and your complete last name in the “password” and “confirm password” fields. (For example, jsmith).

Click Next.

Click Workgroup or Domain in the list on the left.

Click the Workgroup radio button.

Type the Workgroup name LabGroup1 in the “workgroup” field and then click next.

Click Additional Commands in the list on the left, and then click finish.

Type “C:\Deploy\unattend.txt” in the “Path and file name” field if it is not already displayed.

Click Ok.

 

Click File > Exit.

 

Step 5-

Browse to “C:\Deploy”

Right click unattended.txt and then click copy.

Browse to “A:\”.

Click File > Paste.

Right-click unattend.txt, and then click rename.

Type Winnt.sif as the new file name, and press Enter.

Copy unattend.bat to the floppy disk.

Remove the floppy disk from the floppy drive.

Click start > Turn Off Computer.

Click Restart

Step 6-

When the “Press Any Key to Boot from CD” message appears, press any key on the keyboard. Insert the floppy disk. The system will inspect the hardware configuration.

The Windows XP Setup screen appears while the program loads the necessary files.

Step 7

The Welcome to Setup screen appears. Press Enter.

The “Windows XP Licensing Agreement” screen appears.

Press F8.

Windows XP Professional Setup will search to determine if another operating system already exists on the hard drive.

Press ESC.

Press the D key.

Press Enter.

Press the L key.

Press the C key.

Type 5000 in the “Create partition of size (in MB):” field.

Press the Enter key.

Press the down arrow key to select “Unpartitioned space”.

Press the C key.

Create another partition of 5000 MB.

Repeat this process one more time. You will have three partitions of 5000 MB each.

Select C: Partition1 and press the Enter key.

Select “Format the partition using the NTFS file system”.

Do not select ““Format the partition using the NTFS file system <Quick>”.

Press the Enter key.

The “Please wait while Setup formats the partition” screen appears.

The system will restart automatically.

After the system restarts, the message “Press Any Key to Boot from CD” appears.

Do not press any keys.

The installation should continue without prompting you for any settings.

The system will restart automatically.

After the system restarts, the message “Press Any Key to Boot from CD” appears.

Do not press any keys.

Step 8

The “Welcome to Microsoft Windows” screen appears.

Click Next.

Click the Help protect my PC by turning on Automatic Updates now radio button.

Click Next.

Click the Yes, this computer will connect through the local area network or home network radio button.

Click Next.

Click the No, not at this time radio button, and then click Next.

Type the name provided by your instructor in the “Your name:” field.

Click Next.

The “Thank you!” screen appears.

Click Finish.
Step 9

The “Windows XP Professional” desktop appears.

Click start > Control Panel.

Step 10

Click User Accounts.

Click Create a new account from the “Pick a task…” list.

Type the name provided by your instructor in the “Type a name for the new account:” field.

Click Next.

Click the Limited radio button.

Click Create Account.

The “User Accounts” window appears.

Create a second limited user. Your instructor will provide the name of the user.

• Various brands of operating systems:

Microsoft windows,

Apple Mac Os,

UNIX and Linux.

• Several versions or distributions:

1. Windows 2000 Professional,
2. Windows XP Home, Professional or Media Centre Editions,
3. Windows Vista Home Basic, Business and Premium Editions.

• Compare OS versions or editions to find the best one for your customer

NTàNew technology   NTFSàNew technology file system. (Safer/secure)

Mac OS:

Puma-Cheetah-Tiger-Leopard (10.5)

Mac OS X. (In 2001 they changed the code and started to name the OS versions/editions based on cats). (The X represents 10 in roman numerals).

Windows vista:

Out for about 2 years when it was popular, then windows 7 came out. Windows XP was more popular than Vista was.

OS	Advantages	Disadvantages
Microsoft Windows	Have lots of programmes that are specifically made for it. Different versions/editions to suite ones needs. When doing a search in the browser it comes up with similar results to get to what you want quickly and efficiently. Easy to use.	It is quite expensive, sometimes security issues may occur such as viruses.
Apple Mac OS	Useful programmes to help with work, school, everyday things etc. Easy to use.	Small software base in comparison to Microsoft Windows. More expensive.
UNIX and Linux	It is an open source meaning that it the OS is free. Can change it.	You’re relying on the internet most of the time, therefore it’s not very reliable.

 

• An operating system is the interface between the user and the computer:

1. Provides a bridge between the hardware and applications.
2. Creates a file system to store data.
3. Manages applications.
4. Interprets user commands.

 

• Operating systems have minimum requirements for hardware.

N.O.S.àNetwork operating system is an operating system that contains additional features to increase functionality and manageability in a networked environment.

Examples of an N.O.S’s:

1. Windows 2000 server,
2. Windows 2003,
3. UNIX,
4. Linux,
5. Novell Netware,
6. Mac OS X.

Server N.O.S (Network operating system).

The N.O.S is designed to provide network resources to clients:

1. Server  applications.
2. Centralized data storage.
3. Directory services that provide a centralized repository of user accounts and resources on the network.
4. Netware print queue.
5. Network access and security.
6. Redundant storage systems.

Network protocols:

Network operating systems provide several protocols designed to perform network functions.

1. HTTP: defines how files are exchanged on the web.
2. FTP: provides services for file transfer and manipulation.
3. POP: retrieves e-mail messages from an e-mail server.
4. DNS: Domain name serveràResolves URLs for websites to their IP address.
5. DHCP: Automates

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