by Dinesh Thakur Category: Computer Terms

Bandwidth measures the amount of information that can flow between two points in a certain period of time. The "broader" the bandwidth, the faster the information flow. You can use the term to describe how quickly information moves from the hard disk into memory, or from the computer to an add-in board on the expansion bus, or from one modem to another across a telephone line. Depending on whether the transmission is digital or analog, the rate is measured in bits per second (bps) or in hertz (cycles per second).



 
by Dinesh Thakur Category: Computer Terms

CD-R (Compact Disc Recordable) AWRITE-ONCE version of the CD-ROM disc, which can be used to distribute and back up computer data or to copy music CDS. Though it follows the same data format and can be read in standard CDROM drives, CD-R employs quite a different physical storage process, based on an organic dye film that is selectively bleached by a laser beam, which explains the blue or green colour of the recording surface.



 
by Dinesh Thakur Category: Computer Terms

Analog is the opposite of digital, and I can only explain analog in relation to digital. Analog refers to things that are in a continuous flow or that have an infinite number of values-things that are "analogous" to real life.

 
by Dinesh Thakur Category: Computer Terms

Automated Teller Machine (ATM) Also called a CASH POINT, a combined computer terminal and cash dispensing machine connected via a WAN to a bank's central computers, that enables customers to make cash withdrawals and inspect account details from public sites such as streets, airports, shops and petrol stations. ATMs typically provide a small display screen that presents menus to the user, surrounded by a small number of buttons to make menu selections, and a numeric keypad for entering the customer's PIN number - the latter is checked against that stored on the customer's cash card, which must be inserted into a slot as a means of AUTHENTICATION.



 
by Dinesh Thakur Category: Computer Terms

The B word. If something is wrong with a piece of software or hardware so that it stops working or destroys your data or just acts weird, the product is said to have a bug, or to be buggy. The term actually comes down to us from the real live crawling and flying bugs that used to get into those old giant-sized computers .

 
by Dinesh Thakur Category: Computer Terms

Before a disk can be useful in a computer, the disk must be formatted. Formatting, also called initializing, organizes the storage area on the disk-it magnetically marks the disk with tracks and sectors, each with indicated boundaries, so that the information you store can later be located easily. The process involves erasing all that is on the disk, testing the disk to make sure all of its sectors are reliable, and creating a directory-an internal address system used for locating information later.



 
by Dinesh Thakur Category: Computer Terms

A trackball is an alternative to a mouse or a stylus. It looks kind of like a mouse upside-down, and you use it by rolling the ball around with your fingers. It has one or more buttons to click, just like a mouse.

 
by Dinesh Thakur Category: Computer Terms

CD-ROM (pronounced "see-dee rom") stands for compact disk, read only memory. A NON-VOLATILE OPTICAL DISK STORAGE medium based on the same physical disk format as the audio Compact Disc (CD), developed by Philips and Sony. A CD-ROM actually looks just like the CDs we play music with. To use one with your computer, you need a CD-ROM player, also called a CD-ROM reader. A CD-ROM can hold up to about 600 megabytes of information, which is the equivalent of about 700 regular floppy disks. There are CD-ROMs that hold the entire works of Shakespeare, complete dictionaries, histories, images of the works in the Louvre, etc., etc., ete. You can search the CD for the particular information you want to work with, copy it, then paste it into your own documents on your hard disk to do with what you will. You can only read from a CD-ROM, though-you can't store information onto it. The biggest complaint about CD-ROMs is that they are relatively slow.



 
by Dinesh Thakur Category: Computer Terms

To stop a program or computer command, before it has finished naturally. The term also covers an unexpected termination by the computer because of a bug or malfunction.



 
by Dinesh Thakur Category: Computer Terms

If there is too much static electricity hanging around, it can actually disrupt your computer, causing the screen to freeze or creating various other unpleasant disturbances that can destroy data. Static can even destroy the circuits inside your computer. Extra static can develop from the weather or from certain kinds of clothing or from activities like petting your cat while working on your computer, shuffling around on the carpet, or rubbing a balloon on your head. So a variety of antistatic devices have been developed to help prevent this, devices such as wrist bands, floor mats, sprays, and little metal pads that say "Touch Me."



 
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.



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