by Dinesh Thakur Category: Computer Terms

A laser disc (also known as a "video disc") is similar to a music CD, but it holds visual images as well as music. In fact, laser discs can store entire movies, concerts, operas, recordings of live theatre, and a wide variety of educational material. Its signal gets fed right into your television or video monitor, just like the video tape movies you rent. Laser discs are typically 12 inches wide, just like a standard long-playing phonograph record (remember those?).

 
by Dinesh Thakur Category: Computer Terms

A device just means any kind of component that's part of or attached to your computer. It can be located inside or outside the computer. A mouse, for example, is a device that sits outside the computer, while an internal disk drive (another device) is inside the computer. Devices need instructions on how to communicate with the printer or the rest of the computer, and sometimes those instructions aren't part of the computer's standard operating system.



 
by Dinesh Thakur Category: Computer Terms

clock cycle The basic unit of timing within a computer system, consisting of one of the stream of regular pulses generated by the SYSTEM CLOCK. Most of a computer's components, in particular its processor, bus and memory systems, operate in strict step with the clock, so the number of clock cycles their various actions occupy is of crucial importance to a computer designer.



 
by Dinesh Thakur Category: Computer Terms

"AirDrop" is a very handy feature and easy to use for wireless file transfer between Mac, even outside the context of a home network. AirDrop arrived on the iPad and iPhone with iOS 7 and on Mac with Mac OS X Lion. Indeed not need a router or even connect to an existing Wi-Fi or Bluetooth network to use "AirDrop". There is nothing to set up, all you need is a recent Mac ("AirDrop" indeed requires a recent Mac to be activated) and communication will be made directly between Wi-Fi cards Mac (ad-hoc mode).

 
by Dinesh Thakur Category: Computer Terms

To understand what defragmentation IS, a person must first understand how data files are saved onto magnetic storage disks. Whether on a floppy disk or a hard disk, data is stored in a certain format. Formatting consists of dividing a disk into organized sections so that data can be located by the computer. Formatting organizes disks into concentric rings called tracks. Tracks are divided into sectors (pie shaped wedges) in which files and parts of files are stored.



 
by Dinesh Thakur Category: Computer Terms

The Desktop level is called a "level" because there is a hierarchy of different levels, kind of like different floors in a tall building. When you can actually see the Desktop, you can double-click to open folders and then you see that folder's window, right? That window is one level of the hierarchy. If you open another folder that is within that window, you go down one more level into the hierarchy. Well, the Desktop level is the very top of the hierarchy (or the root, some might say) because the first window (including the hard disk window) sits on the Desktop.

 
by Dinesh Thakur Category: Computer Terms

Freeware is software made available for public use by the author, and it's free. You're not under any obligation to pay for it. Freeware is usually distributed in the same places you find shareware and public domain software: on bulletin boards, at user groups, and by commercial shareware distributors.

 
by Dinesh Thakur Category: Computer Terms

A driver is a piece of software that tells the computer how to communicate with or operate another piece of hardware, such as a printer, scanner, or mouse.



 
by Dinesh Thakur Category: Computer Terms

Derived from Users Network this is, again, totally separate from the WWW. Briefly, the Internet is also home to what are called news groups which are broadly divided into several categories and which cater for every topic imaginable.

 
by Dinesh Thakur Category: Computer Terms

As all search engines are different they all operate in slightly different ways. The good news is that the same search techniques can be applied to them all, but, as might be expected, each one is a variation around the same theme. To make it even worse not all search engines actually search the Internet, some are what is known as web directories. Then, just to confuse the picture even more some engines do keyword searches while others are concept based.

 


About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.