Concise definitions on frequent terms

Bounce Rate

  09/24/13 22:55, by admin, Categories: Marketing

The bounce rate is the percentage of visitors who leave a web site after viewing a single page.

This is widely regarded as a bad thing because it may mean that visitors did not find what they were looking for and "bounced" away to another site. They left almost immediately.

However, this is a broken metric in many cases. For example if you were looking for opening times of a retailer in your city and you found that info right on the homepage of the retailer, you will technically leave the site after a single page view. However it does not mean you did not find what you were looking for.

Furthermore you may have visited some competing sites in a row, "bouncing" from on e to the next, still finding the exact information (closing times) on each of them in a single page view each.

Dual Inline Memory Module (DIMM)

  08/26/08 02:01, by admin, Categories: Uncategorized

A small circuit board that holds memory.

Duty Cycle

  08/26/08 02:04, by admin, Categories: Imaging

Duty cycle is the page quantity which does not affect printer performance for a month. Generally the printer has the lifespan limitation such as pages per year. The lifespan means the average capacity of print-outs, usually within the warranty period. For example, if the duty cycle is 48,000 pages per month assuming 20 working days, a printer limits to 2,400 pages a day.

Charge Coupled Device (CCD)

  08/26/08 01:52, by admin, Categories: Imaging

Charge Coupled Device (CCD) is the hardware which captures the image in scanners and digital cameras.


  10/03/09 21:14, by sandeepbk, Categories: Imaging

The Joint Photographic Experts Group (JPEG) algorythm is a very commonly used method of compression for photographic images. It is also a file format used for storing or transmitting photos.

The JPEG algorythm is lossy which means some details of the original picture are lost when compressing the algorythm. The algorythm has a quality setting allowing to set a balance between smaller file size and better quality.

Dots Per Inch (DPI)

  08/26/08 02:03, by admin, Categories: Imaging

Measurement of resolution that is used for scanning and printing. Generally, higher DPI results in a higher resolution, more visible detail in the image, and a larger file size.


  01/11/12 13:26, by admin, Categories: Networks

FileZilla is a well known FTP client for Microsoft Windows.

It is known for its reliability.

Download here.

BIT Depth

  08/26/08 01:47, by admin, Categories: Imaging

The Bit depth describes the number of bits used to represent the color of a single pixel in a bitmapped image. Higher color depth gives a broader range of distinct colors. As the number of bits increases, the number of possible colors becomes impractically large for a color map.

1-bit color is commonly called as monochrome or black & white.

Subnet Mask

  12/06/13 19:00, by admin, Categories: Networks

The subnet mask is used in conjunction with the network address to determine which part of the address is the network address and which part is the host address.

A subnet mask may look like which means the first 3 bytes are part of the network and the last byte is the address of the host on the subnet.

Another way to write the same network mask as above is /24 which means the 24 first bits (8 bits * 3 bytes) are part of the network.


  08/26/08 07:17, by admin, Categories: Networks

Frame-based computer networking technology used in local area networks (LANs). Ethernet defines wiring and signaling for the physical layer, and frame formats and protocols for the media access control (MAC)/data link layer of the OSI model. Ethernet is mostly standardized as IEEE 802.3.

It has become the most widespread LAN technology since the 1990s.

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