Basic Computer Short course under free online training of short courses in Rawalpindi

 

This chapter provides a brief description of the major components of the computer presents most commonly used devices and software components offers typical for novice users. Technical Data used in the field explained in short courses in Rawalpindi.

measures

Before starting with the description of the device, it makes sense, the data size familiarize terminology that is often used in this book.

Computers have a very easy way to store data: only 0 or 1. Some more details of short courses in Rawalpindi are as under.

A value of 0 or 1 is stored as bits and all computer data and remember sequences of bits. A sequence of 8 bits called a byte, which is a lot large enough to store a rule, a letter or a number (albeit sometimes need 2 bytes). Modern computers are capable of a large number of bytes to meet that compels us to introduce other quantities:

• kilobytes (KB), about 1000 bytes,
• megabytes (MB) 1000 KB or one million bytes,
• gigabytes (GB), approximately 1,000 MB or billion bytes,
• terabytes (TB), approximately 1,000 GB or one trillion bytes.

Generally, the full text of an entire book can fit in any KB while an image with good resolution (say paper ready printing on A4) or a modern song, a few MB during movie quality needs required GB little.

devices

The team uses several devices to permanently store and move data, which vary greatly in terms of capacity, cost, speed and agility.The most widely used is the internal hard drive. Usually in the computer and can not move Its size in the time of 1 to 2TB varies. On the other hand, an external hard drive is the same size group and can move naturally. The only drawback is that to be a little slower.SSD Solid State Drives are beginning to conquer the market and soon replace conventional hard drives. This is Disc at all, but very large as a hard drive that can replace the memory card, the internal hard drive is full. Its main advantages are that it has no moving parts (not at high speed, such as hard disks spinning) has, are robust and in most cases they are faster than hard drives (up to 10 times faster). Its disadvantage is the small size today is 500 GB and its high price. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join short courses in Rawalpindi .