Computer memory is an area which cannot be compromised in any case, it is what stores all the information on your computer. Your computer would be nothing but a box without reliable memory in it. Computer memory cards need to be good quality. Most people prefer getting a dependable brand name. If you have a PC you probably know about the different types of memory cards. But there is more to understand about it. An association known as Personal Computer Memory Card International Association looks after the features and promotion of computer memory cards all over the world. According to the association, the memory cards can be defined in relation to two standards known as personal card standard and Express Card standard. You are going to learn about both standards. Today, every other person has a personal laptop. In the laptop memory, personal card standard has a major role to play. It provides a platform and infrastructure to all applications and operating system of the notebook computers. There are different types of personal cards, let's say type1, type2, type3, and so on. All these different cards use a similar row attaching interface. All interfaces are 84mm long and 53mm in breadth. After getting any type of the memory cards, it is better to explore the Card Information Structure present in it. However, this is present in all types of cards and needs to be checked out before installation into the computer system. This section tells about the type of the computer memory card, power supply sources, power saving sources, manufacturer and the model number of the card and other important information. Another standard for the memory cards are Express Cards. It is a hardware device that is successfully replacing the personal cards. These hardware memory cards are pluggable and can accept the wireless cards as well as the memory card readers. These cards are readily available for every model of notebook computer since 2005. The Express card supports the two main factors and have wider bandwidth in comparison to personal computer memory cards. More than this, they use an interface controller as well which is rarely used by PC cards. In order to get more details and information about these two products of International Association of Computer Memory Cards, you can explore the different websites online. In Express memory cards, there are several models available to you by different companies. Some of them are equipped with integrated antenna while others contain broadband modem with it. So, according to your desire and personal needs of your computer, you can pick any one of the computer memory cards.