3110 Dell toner-based printer review

When the printer there are several key features of the watch and several technical aspects that you should take notice in some of these include how many pages it can print per minute, how long you should expect that your toner for last, and how many pages can be the machine to handle a month, which is also known as the duty cycle. Here's an overview of how well Dell 3110 performs as a printer that prints in monochrome and color:

The first important aspect of any printer to break down is how quickly it prints. Typically, printers will print at a high level, when using only black toner, and the same for Dell 3110. When printing in monochrome mode, you can expect up to 31 pages. /min. This number is much less in the 17 pages per minute until you print in full color. These figures reflect that the model can be adapted for people who primarily print in monochrome but still want to print in full color.

In General, the quality of the image and document of each print is very high. Resolution at the time of printing in color is evaluated on the quality of 2400 in the image. Documents, bold, clear and strong, making them look professional.

Networking is also another important factor when looking at printers. Dell 3110 can connect to Office Online is easy, and it can be connected with a USB port. This model uses key print server to connect multiple computers to one printer.

To make Office life a lot easier, the 3110 can accommodate up to 400 pages through its two trays. You can add another input tray 500 pages that will save you much time reloading paper. Duty cycle is the maximum number of 60 000 pages per month, means that the printer can work for you a lot of hacking or cost you a lot of maintenance.

You can expect your toner to last long, and you even get a warning message when one of your cartridges end with LCD screen, the printer uses to display messages. In General, Dell 3110 is a Great entry level machine, which can pass through many pictures without badges beat and it can print relatively quickly when printing in monochrome.

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11:09 AM | 0 comments

Subnet mask tutorial

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The subnet mask plays an important role in computer networking. It's used to determine the subnetwork an IP address belongs to. It achieves this by masking the part of the IP address that will be used to create the subnetworks and not masking the portion of the IP address that will be used for host addresses.

Networks based on TCP/IP use subnet masking to split an IP address into two parts; the first part is used to divide the network into logical subnetworks, the second part is used to assign computers, otherwise known as hosts, to subnetworks. The subnet mask and IP address are interdependant; you look at the IP address in relation to the subnet mask to determine how many subnetworks and how many hosts per subnetwork there will be. We will focus solely on class C addresses as these are the most likely class readers of this article will encounter.

The subnet mask looks a lot like an IP address. It's a 32 bit address that's divided into 4 octets; each octet contains 8 bits.

A typical subnet mask looks like this: 255.255.255.192

The 255.255.255.192 address looks like this in binary: 11111111.11111111.11111111.11000000

Consider the portion of the address that contains the string of 1's as the masked portion. Consider the portion of the address that contains the string of 0's as the unmasked portion. Understand that with class C addresses, the only octet we're interested in, in terms of creating subnetworks, is the last one; for the 255.255.255.192 (11111111.11111111.11111111.11000000) address, we are interested in the masking and not masking of the 11000000 octet. Here we can see that 2 bits have been masked to create subnetworks and the remaining 6 bits are unmasked and therefore used for host addresses on the aforementioned subnetworks. I will show you how to work out how many subnetworks and hosts per subnetworks this creates, but first I'll give you more of an insight into converting dotted decimal addresses (255.255.255.192) into binary notation (11111111.11111111.11111111.11000000).

How do we get 11111111.11111111.11111111.11000000 from 255.255.255.192? It's actually quite easy.

Here's a table that shows you the decimal value of each bit in an octet:

128 | 64 | 32 | 16 | 8 | 4 | 2 | 1

We can tell by using this table as a reference that:

The 1st bit in an octet is worth 128
The 2nd bit in an octet is worth 64
The 3rd bit in an octet is worth 32
The 4th bit in an octet is worth 16
The 5th bit in an octet is worth 8
The 6th bit in an octet is worth 4
The 7th bit in an octet is worth 2
The 8th bit in an octet is worth 1

By adding the value of the bits represented by a 1 together, we can tell what the decimal value will be. Let's use the first octet as an example. The first octet is represented by all 1's which is 11111111, if we add the 1st to 8th bits, we get a value of 255 (128 + 64 + 32 + 16 + 8 + 4 + 2 + 1 = 255).

Looking at the subnet mask, we have a lot of 1's followed by some 0's (11111111.11111111.11111111.11000000). Consider the string of 1's in the last octet as the portion used by the network for creating subnetworks and the string of 0's in the last octet as the portion used by the hosts for each subnetwork. Remember, the only octet we're interested in is the last one. Think of it this way, we are borrowing a few bits from the last octet in order to create the subnets. The more bits needed to create subnetworks, the fewer the bits remaining to create host addresses within each subnetwork.

It may help you to think of it like this; the more hosts needed in each subnetwork, the fewer subnetworks you're able to create. The more subnetworks created, the fewer the hosts able to reside on each subnetwork. We will go through a few examples, but first I need to explain a little more about class C subnet masks.

The subnet mask for Class C addresses, when not subnetted, looks like this: 255.255.255.0 which in binary is: 11111111.11111111.11111111.00000000

This allows for one network without any subnetworks because we have'nt borrowed any bits from the last octet to create subnetworks, and on that one network you can have 254 hosts; so if you had a 255.255.255.0 subnet mask and used a IP address 192.168.1.x where x denotes the range of available host addresses, the range would be from 192.168.1.1 to 192.168.1.254. You may be asking, where did the 192.168.1.0 and 192.168.1.255 addresses go? The 192.168.1.0 address is reserved for the network and the 192.168.1.255 address is reserved as a broadcast address. Please note that 2 addresses are always reserved for each subnetwork created, the address at the start of the range is reserved for the network, the address at the end of the range is reserved as a broadcast address. This means if you divide a network into 8 subnetworks, 16 addresses will be reserved; 2 for each subnetwork. Remember this when making provisions for network addresses.

Let's go through a few examples so you can see how borrowing bits from the last octet will effect the number of subnetworks and the number of hosts per subnetwork.

We know the subnet mask 255.255.255.192 looks like this in binary: 11111111.11111111.11111111.11000000

Based on the binary notation of the 255.255.255.192 address, it's clear to see that 2 bits have been borrowed from the last octet to create subnetworks, which leaves 6 bits to be used to create host addresses. Working out how many subnetworks and hosts per subnetwork is rather easy; simply take the number of bits used and multiply 2 to the power of the number of bits and then minus by 2. In this example where 2 bits have been used for subnets, take 2 to the power of 2, which equals 4, then minus 2, which leaves 2; so there are 2 usable subnets. There are 6 bits for hosts, so we take 2 to the power of 6, which equals 64, then minus 2, which leaves 62 usable host addresses. This tells us that there are 2 usable subnets and 62 usable addresses per subnet. Remember, each range of addresses within a subnetwork has 2 addresses reserved for the network base address and the broadcast address. Each subnet has 2 addresses reserved for the subnet group address (all zeros) and the subnet broadcast address (all ones).

Based on an IP address of 192.168.1.x and a subnet mask of 255.255.255.192, these are the addresses related to the usable subnets

192.168.1.64 (Reserved for Network)
192.168.1.65 to 192.168.1.126 (Range of usable)
192.168.1.127 (Reserved for Broadcast)

192.168.1.128 (Reserved for Network)
192.168.1.129 to 192.168.1.190 (Range of usable)
192.168.1.191 (Reserved for Broadcast)

Let's go through another example.

We know the subnet mask 255.255.255.240 looks like this in binary: 11111111.11111111.11111111.11110000

We can see that 4 bits have been borrowed to create subnetworks, leaving 4 bits for host addresses. 2 to the power of 4 equals 16, minus 2 leaves 14 usable subnetworks each with 14 usable host addresses. Here's a list of all usable subnets and the range of addresses those subnets use:

192.168.1.16 (Reserved for Network)
192.168.1.17 to 192.168.1.30 (Range of usable)
192.168.1.31 (Reserved for Broadcast)

192.168.1.32 (Reserved for Network)
192.168.1.33 to 192.168.1.46 (Range of usable)
192.168.1.47 (Reserved for Broadcast)

192.168.1.48 (Reserved for Network)
192.168.1.49 to 192.168.1.62 (Range of usable)
192.168.1.63 (Reserved for Broadcast)

192.168.1.64 (Reserved for Network)
192.168.1.65 to 192.168.1.78 (Range of usable)
192.168.1.79 (Reserved for Broadcast)

192.168.1.80 (Reserved for Network)
192.168.1.81 to 192.168.1.94 (Range of usable)
192.168.1.95 (Reserved for Broadcast)

192.168.1.96 (Reserved for Network)
192.168.1.97 to 192.168.1.110 (Range of usable)
192.168.1.111 (Reserved for Broadcast)

192.168.1.112 (Reserved for Network)
192.168.1.113 to 192.168.1.126 (Range of usable)
192.168.1.127 (Reserved for Broadcast)

192.168.1.128 (Reserved for Network)
192.168.1.129 to 192.168.1.142 (Range of usable)
192.168.1.143 (Reserved for Broadcast)

192.168.1.144 (Reserved for Network)
192.168.1.145 to 192.168.1.158 (Range of usable)
192.168.1.159 (Reserved for Broadcast)

192.168.1.160 (Reserved for Network)
192.168.1.161 to 192.168.1.174 (Range of usable)
192.168.1.175 (Reserved for Broadcast)

192.168.1.176 (Reserved for Network)
192.168.1.177 to 192.168.1.190 (Range of usable)
192.168.1.191 (Reserved for Broadcast)

192.168.1.192 (Reserved for Network)
192.168.1.193 to 192.168.1.206 (Range of usable)
192.168.1.207 (Reserved for Broadcast)

192.168.1.208 (Reserved for Network)
192.168.1.209 to 192.168.1.222 (Range of usable)
192.168.1.223 (Reserved for Broadcast)

192.168.1.224 (Reserved for Network)
192.168.1.225 to 192.168.1.238 (Range of usable)
192.168.1.239 (Reserved for Broadcast)

You now have enough of an understanding about subnet masks to be able to provision IP addresses based on varying subnetting situations. Please read my VLSM Tutorial to learn how to use the more advanced concept of variable length subnet masks.

My name is Jason Woodruff and I work for Miragetek Global Resources Ltd. I work within the IT industry, here's a link to our website:

http://www.miragetekshop.co.uk/

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8:03 AM | 0 comments

8 ways to improve PC performance

PC processing speed mainly depends on the speed of the computer processor. But there is more to external factors that affect the performance of your PC. In order to improve the performance of YOUR PC, someone should put more effort in the maintenance of the system such as scheduled disk defragmentation and cleanup temporary files stored on your PC. Here I reveal some tips on how to improve PC performance without the assistance of other people.

1. Defrag

For your information data that is stored in a computer located in the specified path. Whenever the software is removed, the data will be deleted from the system, which creates an empty space of. The blank space would later hold the new data when you install new software. The newly installed software will not be organized into groups, but are divided into several different groups, which, in fact, this process slows down the performance of your computer. Defragmentation is to change the location of the pieces of data in which to extract data from the system become smoother and faster. Schedule defragmentation is recommended for computer users, especially those who are interested in software testing.

2. the scheduled Clean Up

Cleaning of dust in your computer will be improved performance? May be true, but absolutely not for the laptop. Planned treatment in this case means eliminating junk files on your computer. Normal Internet surfing activity will generate various files such as cookies, which are used to facilitate browsing the Internet. The accumulation of these files will eventually slow down your computer.

3. avoid consuming memory Monster

Due to some memory consuming monster, installed in your computer may decrease your computer's performance. These Monster consists of an antivirus program especially Internet security package, outdated Web browser, pps (online video) and professional graphics software. Antivirus software is the most common source of memory consumption programme, which will probably slow down your PC. One recommended way to improve the performance of your computer is set up like a light antivirus Avira Antivir personal or Avast. The security level of these programmes may be sufficient for normal everyday use of the computer if you are dealing with high risk of illegal downloading.

4. Remove unwanted software

In order to eliminate these programs will be the time when you keep all unwanted programs on your computer and wait for the next format. This can be a very bad habit for the PC that these unwanted programs will definitely use resource limited memory. Do the planned removal of these programs, along with cleaning the unwanted files. You can easily uninstall by using the Windows clean up for Windows users.

5. disable unnecessary background application

Every time you turn on your computer, it will take less time to download if they do not have many applications running at startup time. How to install additional software on your computer will be more-activated application at run time, which actually slow down your computer even after downloading the PC. These applications run in the background and consume part of the computer's memory. In order to avoid memory consumption by these background, someone you can turn off these applications by following these steps:

Click the Windows logo + Rtype msconfig in the search boxuncheck unwanted programs

6. turn off the sidebar

Windows users may experience slow start because with the launch of the sidebar. Windows Sidebar provides easy access to some applications, as well as a clear definition of the date of & the time of notification. At the same time, the sidebar is used about 100 MB for to keep these applications. It is recommended that you disable the sidebar to avoid the performance penalties.

7. add more RAM

Furthermore the processing power, RAM size is another important criteria that determine the performance of your computer to run speed. RAM functions as a temporary storage for data that is used to open certain applications. Do not retrieve data from the system every time you open the application more RAM on your computer, and it will improve PC performance.

8. the format of the

The final decision for Bad performing computer must pass the format. After formatting your computer would obviate all problems, such as virus infection and reduce performance. To keep your computer, do good, kindly proceed as described above.

Communications,

Ricky Chu
Written by Ricky chew Dot Com

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3:18 AM | 0 comments