computer

Portable Hard Drives for Your Convenience

Portable Hard Drives for Your Convenience

With the development of technology nowadays, people tend to like something which is easy to carry around and something that they can use instantly. It is all because the mobility of people these days are very high, so they need to have devices which can support their busy activities. For addition, the fact that the life is really hectic nowadays has also made the people become more dependent to the technology to help them cope with the busy things of their lives. This is the reason why the computer industries are inspired to create a portable hard drive that would very easy and light to carry around, so the users would not need to take their laptop all the time. Portable hard drive is able to save various data, starts from documents, pictures, videos, music, games and many more. It is also can be attached and removed from PC or laptop when it is needed.

One of the best portable hard drives that you can choose is Lenovo ThinkPad USB 3.0 Secure Hard Drive. This product is very recommended if you need a portable hard drive that is not just useful to save data, but also to secure your data. With the security buttons that available on the front side of this portable hard drive, you can protect all of the data that available inside the hard drive. You do not need to worry for someone will be able to access the data without knowing the password. The security system in this hard drive does not require any software or applications. You are able to directly operate the security system with the numeric keypad that available on the front side of the hard drive. You can read the manual instructions that available inside the box for further explanation.

After you attached it to the computer or laptop and unlock the password, this hard drive will operate just like the other portable hard drives. You can use it to save pictures, videos, documents and the other data. If you insert the wrong password up to five times, you need to restart the computer and removed this portable hard drive from the computer. To try it again, you can reconnect the hard drive to the computer. The capacity of this hard drive is little bit lower than the other portable hard drives. It only has maximum capacity of 690 GB. The original format of Lenovo ThinkPad USB 3.0 Secure Hard Drive is support with Windows system, but you can also reformat this hard drive to be capable with Mac and Linux operation systems. If you want to have this portable hard drive, you can get Lenovo ThinkPad USB 3.0 Secure Hard Drive with price around US$ 190.

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Getting to Know the Types of Computer Network

Getting to Know the Types of Computer Network

Computer network is a system which consists of a group of computers connected one another to share information and power. The types of computer network are divided into three parts. They are:

1.     Based on the location width

a.     LAN (Local Area Network)

This is a local computer network which has very limited area scope. It uses UTP cable or the wireless one. It is usually used in schools, offices, or houses. The advantages of LAN are:

       Parallel use of equipments, such as printer and CPU.

       Easy to share data

       Easier maintenance if the client-server for data management is arranged centered.

b.    MAN (Metropolitan Area Network)

This is several LANs which are connected altogether. Media used are wireless and optic fiber. The range scope is around 50 km, depends on what media is used.

c.     WAN (Wide Area Network)

This is a group of LAN and MAN which are integrated each other. WAN leads to high-speed data transfer so that it is possible to have faster and more exact communication and data sharing. The association of WAN leads to internet working, which we usually call ‘internet’.

2.     Based on the configuration

a.     Peer-to-Peer (P2P)

In P2P, each computer has the same position and it does not need a centered system. The advantages are the configuration is easy to make, server computer is not needed, cheap installation budget, and does not need technician with such specific ability. On the contrary, it has lower data security, limited computers, and longer maintenance process.

b.    Client/server

It requires a computer which becomes the server to control the network. It has higher data security, unlimited computer quantity, and easier maintenance process. Meanwhile, it also has difficult configuration, expensive installation budget, and needs technician with a specialty.

3.     Based on the used media

a.     Cable

This is used if the are scope is not too broad. The types of cable used are UTP, optic fiber, and Coaxial.

b.    Nircable or wireless

It really assists if it is used in the limited for cables. The media are wireless LAN, infrared, cellphones, satellite, and bluetooth for instance.