Laptop Jargon Buster Letter D. We explain all the complicated computer terminology that come with purchasing your Laptops and PC’s and hopefully making that purchase decision a lot more easier for you.
DDR Double Data Rate This refers to a type of SDRAM and it is basically a strip of SDRAM that can transfer data twice as fast as standard SDRAM.
Most of today’s modern Laptops are now fitted with DDR SDRAM.
DIMM Dual Inline Memory Module A DIMM is a memory module commonly installed in both Laptops and PC’s. Laptops use a 148pin Module whilst PC’s use a 168pin Module.
DOS Disk Operating System DOS is a system used by software in Laptops to utilize it’s disk drives. MS-DOS stands for ‘Microsoft disk operating system’ and was the system used to operate computers before widows was developed.
DRAM Dynamic Random Access Memory This is a type of memory (RAM) used in a lot of today’s Laptops and PC’s.
Domain (Domain Name) A domain name is a specific and unique name given to a website or webpage on a network such as the internet that enables users to find it. For instance this websites domain name is www.cheaplaptops4less.com. All websites have an IP address which is made up of numbers and these IP addresses are referenced with its own unique domain name to make it easier to find or type into your web browser.
Database A database is the storage of data in a file that is easily manipulated and retrieved. For example an online store will use a database for all its stock items for sale. Databases are usually made up of tables which are made up of records which are made up of fields.
DHTML DHTML or Dynamic HTML is a collection of technologies used to develop animated and/or interactive web pages by combining static web pages such as HTML and a client side script language such as Javascript.
DVD Digital Versatile Disk A DVD is another media storage format very similar to a CD (Compact Disk) only that the storage capacity on a DVD is far greater than that of a CD.
Some DVD disks are double sided or dual layered and can store twice the capacity.
Many Laptops now come with DVD readers / Re-Writers built in which makes them ideal for backing up important documents and files.
Dual Core A dual core is a micro processing chip developed by intel. This is the engine room or brain of a Laptop and is the previous model to the core 2 duo processors.
What it basically means is that the processing chip has two cores so in theory it can work twice as fast but this is not always the case. Because the processing calculations are split between 2 core’s, the processors clock speed can be reduced reducing heat and power consumption which makes them perfect for Laptops where low power consumption is a must.
DNS Domain Name Server All websites have an IP address made up of a certain amount of numbers and each IP address has its own domain name (www.cheaplaptops4less.com for example). When you type in a domain name into your web browser the name is looked up on a domain name server and this points your web browser to the corresponding IP address that belongs to that domain name.