Tag: Personal Computer

Usb Pen Drives: Storing and Transferring Data Becomes Easy

Raisa Raima asked:

The name USB pen drive of these devices has been given to them due to their size and shape which gives the user an impression that it is a pen. However, actually it is just a pen-sized and a multi-utility device. These pen drives are very light weight objects. They usually weighs around 21 grams only and comes with an embedded memory of upto 8 GB, which helps it to react very quickly. They can also be distinguished by other name such as flash pen drives. These drives are specially designed without caps in order to eliminate every chance of misconception or misplacing. These pen drives are also popular as the fashion statement among the today’s youth as they generally are worn around neck by young boys and girls, who in turn consider it as fashion statement. Even these pen drives are available in different colours.

There are also other flash pen drives available in market today which come with internal memory of 4 GB. These flash pen drives have the ability to give the finest performance. They can work very fast as it takes very less time to store music, videos, documents and so on. There are also smaller forms of the above mentioned pen drives which come with an embedded memory of 2 GB. All these pen drives are very efficiently compatible as they can be connected easily with every kind of personal computer or laptops. Though people know that pen drive can store any kind of data, still they tend to overlook the basic feature of its size. Being such a small device in size, it allows its user to carry the stored data very easily without facing any issues, which earlier was not possible due to the fact that it is not possible for the user to carry his laptops and personal computer from one place to another. Hence, with the evolution of pen drives, things have become much easier for the users.

There are many manufacturers of pen drives today in market. Since they know that what is the importance of pen drives today in the lives of people and hence they are trying consistently to provide the better quality pen drives to the customers at an affordable prices. The companies like Kingston pen drive, transcend, san-disk and many others. The USB pen drives of these companies offer great quality at the reasonable price.

Thus, it is a device that offers great service at very cheap price but it depends entirely upon the discretion of customers that which company’s pen drive is better and of what capacity USB pen drive does the customer needs.

Computer – the Need of Modern Life

Roberto Sedycias asked:

Computers simply mean a machine which can compute. Let us peek into the past and find out who were the geeks who thought about having a device that could perform calculative tasks by recognizing inputs and giving the appropriate outputs.

Abacus developed in 3000 BC can be called the first ever computer as it was a simple counting device. In 1941 a German engineer Konard Zuse developed a first programmable calculator using binary math and Boolean logic. UNIVAC was developed in 1951 and the real breakthrough came in 1952 when Texas Instrument developed the Integrated Circuit. In 1964, IBM introduced a mainframe computer called IBM 360. Apple introduced Apple I in 1976 and Apple II in 1977. The Computer that is familiar to most of us in terms of looks and functionality was unveiled in 1981 when IBM introduced the Personal Computer.

The main characteristics of a Computer are:

1 – It follows and is capable of following a special set of instructions.

2 – It can execute preset list of instructions generally known as a computer program.

The basic components which are essential to make a computer are:

1 – Input Device comprising of a Keyboard and Mouse which are used for entering instructions and data into the computer.

2 – Output device such as the Visual Display Unit or the Screen, Printer etc, which lets us see what the computer has done.

3 – The Central Processing Unit which is known as the brain of the Computer where all the processing of data is done and instructions are executed.

4 – Memory is the powerhouse of the computer which stores data and instructions in it.

5 – Mass Storage Devices are those which permanently stores and retain large amount of data. The common ones are floppy drives, CD-ROMs, Hard disks etc.

Computers come in various types designed for various purposes keeping in mind different categories of its users. According to their type they have different capabilities and are priced accordingly. The most popular computer is the Personal Computer which is for personal use of a single user at one time. They come in two types; A Desktop and a Laptop. Then there is an even smaller computer known as the Palmtop which can be held in the palms of the user. While these are the smaller and personal types of computers, The Mainframe, Workstation and Supercomputers are the larger high end computers used by big organizations.

Computers can perform a wide range of functions such as word processing, Digital Audio/Video composition, Internet, Communications and Networking and Desktop Publishing. Computers word processing capability includes automatic correction of spelling and grammar mistakes. Internet is one of the greatest inventions of human beings. It connects infinite number of computers in the manner of a web.

Ungodly amounts of information are available on the Internet and facilities of communications such as messaging, audio and video conferencing are available for free. Graphic engineers are using computers for editing audio and video compositions. No media production can be completed without the help of computers. Nowadays Computers are indispensable for Banking, Railway and Flight Reservations, Education and even defense of a country. There is hardly any sector of business which does not utilize Computers. Important and critical business tasks cannot be accomplished without the help of computers.

Just like human beings, computers are also prone to diseases which are created by attack of viruses. Proper back up of all data stored in computer must be maintained to provide back up in case of storage media failure. Computers must be secured from unauthorized use by passwords and must be protected from viruses by installing anti-virus programs in them. Computers, if safeguarded and used properly can create wonders for human kind and can produce results which are unachievable without them.

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