Computers: Seven Ways for saving your digital images for ever!

Seven Ways for saving your digital images for ever!

Written by Chris Thomas

So, you have taken lots of pictures with your new digital camera, repparttar

memory card is full, and you are wondering how to store and archive your images.

1 Buy another memory card

The method of storing your images with least effort is to buy a new memory card and keep your images on repparttar 107221 first card. Taking into account that memory cards are currently expensive, this seems a costly way of archiving repparttar 107222 images. In repparttar 107223 longer term, however, there may be some argument for this method as memory card prices fall, which they progressively have. However as time goes by repparttar 107224 digital size of images (measured in megapixels) will increases partly offsetting this factor.

2 Transfer your images on to your computer

Most if not all digital cameras come with a cable for connecting repparttar 107225 camera to a personal computer. The manufacturer has probably provided software with that cable so that you can install repparttar 107226 software on to your computer, connect repparttar 107227 cable and transfer images from your camera onto your PC. Don’t forget, if all else fails – read repparttar 107228 instruction booklet! Once safely on your computer hard drive, you can erase repparttar 107229 memory of repparttar 107230 camera and start taking new photos all over again. However do check that repparttar 107231 images have been successfully downloaded to your computer before you erase them!

3 Burn your images onto a CDRom

Many home computers are now equipped with a CDRom writer. This is probably repparttar 107232 preferred way of archiving your images for years to come. One word of warning though. Do not buy cheap recordable CDs – CDRs. Cheap discs are less reliable and we have found some to be problematic. We have also found that rewritable disks – those that can be written once and then overwritten – do not work well in certain CD Drives. Best to use good quality write once CDRs and carefully label them, storing them in cases for protection. In due course CDs will be replaced by DVDs providing greater memory capacity as image files increase in size.

Data Warehouse Database and OLTP Database

Written by Exforsys.com

In this tutorial we will learn about repparttar

differences between Data Warehouse database and OLTP database and repparttar 107220

objectives of a Data warehouse and Data flow. The data warehouse and repparttar 107221

OLTP data base are both relational databases. However, repparttar 107222

objectives of both these databases are different.

The OLTP database records transactions in real time and aims to automate clerical data entry processes of a business entity. Addition, modification and deletion of data in repparttar 107223 OLTP database is essential and repparttar 107224 semantics of repparttar 107225 application used in repparttar 107226 front end impact on repparttar 107227 organization of repparttar 107228 data in repparttar 107229 database.

The data warehouse on repparttar 107230 other hand does not cater to real time operational requirements of repparttar 107231 enterprise. It is more a storehouse of current and historical data and may also contain data extracted from external data sources.

The differences between these two relational databases, is tabulated below for information.

Differences Data warehouse database OLTP database :

Data warehouse database: Designed for analysis of business measures by categories and attributes Optimized for bulk loads and large, complex, unpredictable queries that access many rows per table.

Loaded with consistent, valid data; requires no real time validation

Supports few concurrent users relative to OLTP Supports thousands of concurrent users.

OLTP database : Designed for real time business operations.

Optimized for a common set of transactions, usually adding or retrieving a single row at a time per table.

Optimized for validation of incoming data during transactions; uses validation data tables. Supports thousands of concurrent users.

Objectives of a Data warehouse and Data flow

The primary objective of data warehousing is to provide a consolidated, flexible meaningful data repository to repparttar 107232 end user for reporting and analysis. All other objectives of Data warehousing are derived from this primary objective. The data flow in repparttar 107233 warehouse also is determined by repparttar 107234 objectives of data warehousing.

The data in a data warehouse is extracted from a variety of sources. OLTP databases, historical repositories and external data sources offload their data into repparttar 107235 data warehouse. Achieving a constant and efficient connection to repparttar 107236 data source is one of repparttar 107237 objectives of data warehousing. This process is known as Data Source Interaction.

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