An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is an electronic circuit on one small plate ("chip") of semiconductor material, normally silicon. Such a circuit can be made very compact, having up to several billion transistors and other electronic components.

Correct Option: A

An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is an electronic circuit on one small plate ("chip") of semiconductor material, normally silicon. Such a circuit can be made very compact, having up to several billion transistors and other electronic components.

Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands. Because the depth of the pits is approximately one-quarter to one-sixth of the wavelength of the laser light used to read the disc, the reflected beam's phase is shifted in relation to the incoming beam, causing destructive interference and reducing the reflected beam's intensity. This pattern of changing intensity of the reflected beam is converted into binary data.

Correct Option: A

Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands. Because the depth of the pits is approximately one-quarter to one-sixth of the wavelength of the laser light used to read the disc, the reflected beam's phase is shifted in relation to the incoming beam, causing destructive interference and reducing the reflected beam's intensity. This pattern of changing intensity of the reflected beam is converted into binary data.

A CT scan stands for Computed Tomography scan. It is also known as a CAT (Computer Axial Tomography) Scan. It is a medical imaging procedure that utilizes computer-processed X-rays to produce tomographic images or 'slices' of specific areas of the body.

Correct Option: D

A CT scan stands for Computed Tomography scan. It is also known as a CAT (Computer Axial Tomography) Scan. It is a medical imaging procedure that utilizes computer-processed X-rays to produce tomographic images or 'slices' of specific areas of the body.

Microsoft PowerPoint is a robust tool for creating powerful multimedia presentations. It provides such features as clip art, fancy fonts, animations, charts, graphics, sound, and an array of dazzling color schemes to make the presentations more interactive and effective.

Correct Option: D

Microsoft PowerPoint is a robust tool for creating powerful multimedia presentations. It provides such features as clip art, fancy fonts, animations, charts, graphics, sound, and an array of dazzling color schemes to make the presentations more interactive and effective.

The term “Information Technology” (IT) has been variously defined. It is defined as the coming together of computing and telecommunications for the purpose of handling information; the application of technologies to information handling; including generation, storage, processing, retrieval and dissemination. It is a broad-based term comprising the gathering (acquisition), organization (packaging), storage and retrieval (dissemination) of information. Internet is an essential component of it.

Correct Option: D

The term “Information Technology” (IT) has been variously defined. It is defined as the coming together of computing and telecommunications for the purpose of handling information; the application of technologies to information handling; including generation, storage, processing, retrieval and dissemination. It is a broad-based term comprising the gathering (acquisition), organization (packaging), storage and retrieval (dissemination) of information. Internet is an essential component of it.