(1) A symbol that represents a specific action. For example, a plus sign (+) is an operator that represents addition. The basic mathematic operators are + addition, – subtraction,* multiplication,/ division.
In addition to these operators, many programs and programming languages recognize other operators that allow you to manipulate numbers and text in more sophisticated ways. For example, Boolean operators enable you to test the truth or falsity of conditions, and relational operators let you compare one value to another.
(2) A computer operator is an individual who is responsible for mounting tapes and disks, making backups, and generally ensuring that a computer runs properly.
- opt-in e-mail
A term that refers to promotional e-mails that have been requested by the individual receiving them. Unlike spam promotional e-mails that get sent out to large lists of recipients without regard to whether or not they want the information, opt-in e-mails are only sent to people who specifically request them. Opt-in e-mails are targeted and […]
- Optical Character Recognition
Often abbreviated OCR, optical character recognition refers to the branch of computer science that involves reading text from paper and translating the images into a form that the computer can manipulate (for example, into ASCII codes). An OCR system enables you to take a book or a magazine article, feed it directly into an electronic […]
- Optical Disk
A storage medium from which data is read and to which it is written by lasers. Optical disks can store much more data — up to 6 gigabytes (6 billion bytes) — than most portable magnetic media, such as floppies. There are three basic types of optical disks: CD-ROM :Like audio CDs, CD-ROMs come with […]
- optical image stabilization
Abbreviated as OIS, optical image stabilization is the apparatus, contained within a digital camera or other digital recording device, that compensates in real-time for shaking and vibrating while recording. Because OIS is a real-time compensation there is no alterations or image degradation to the image.
- optical resolution
The physical resolution at which a device can capture an image. The term is used most frequently in reference to optical scanners and digital cameras. In contrast, the interpolated resolution indicates the resolution that the device can yield through interpolation — the process of generating intermediate values based on known values. For example, most scanners […]