subject: Buy Laptop Memory on discounted prices [print this page] In today's world, computers have become a necessity in almost in all types of enterprises because of its astonishing capacity of storing unlimited amount of data effectively. There are basically two types of storage- internal storage and external storage. In the article we will discuss about the pros and cons these storages.
Internal storage which is also known as main memory is available in two types RAM and ROM.
ROM or the read only memory is basically a memory chip that stores instructions and data on permanent basis and don't even require power to work. The contents are written on the chip during the time of its manufacturing and cannot be changed thereafter. ROM is very important as far as the concept of handheld computing is concerned because in majority of the handhelds the operating system not only sometimes gets stored but executed in them too. In a typical desktop, OS is stored on its hard drive and get loaded into main memory when we boot up. This creates the need of upgrading handheld's operating system and replacing the contents of ROM each time we boot up. Seeing this, nowadays people have started using "flash memory" ROM chips in place of ROM because they can be upgraded programmatically and don't require replacement.
RAM, or random access memory is a group of memory chips which used to store programs and data files. Unlike ROM, it cannot retain its contents without power and its contents are easily modifiable.
External storage is provided by the storage cards. These cards are available in the different types like:
CompactFlash (CF)
PC Cards
MultiMediaCard (MMC)
Secure Digital (SD)
Microdrive
SmartMedia
Memory Stick (MS)
There are many retailers available in the market which provide computer data storage products like DDR PC3200 memory, DDR PC2700 memory, DDR PC3200 memory, PC2700 DDR SDRAM 2gb memory etc. sourced from the renowned companies like Compaq, Acer, IBM, Dell, Toshiba, Sony and other various companies at highly discounted rates. Apart from that, there are also various websites through which one can purchase high quality memory for Compaq laptop, Mac pro ram, Samsung ddr3 ram etc. without actually leaving their home.
