Answer:
<em>A. </em><em>Arrays are a group of variables that all have the same type.</em>
Explanation:
The correct Option is <em>A. Arrays are a group of variables that all have the same type.</em>
In computer science an array refers to all data structure that is capable of storing more than one item of data (value / variable) at a time or collection of elements (values / variables). Mostly the elements involved in the array are all the same data type. Arrays are tipically implemented in computer programs for data organization in such a way that any related set of values can be searched with ease.
Answer:
1. G
2. J
3. I
4. B
5. A
6. H
7. C
8. F
9. E
10. D
11. D
12. C
13. A
14. B
Explanation:
1. OCR: converts paper based text to digital form. OCR is an acronym for Optical Character Recognition.
2. OMR: marks candidates' responses on a multiple choice exam. OMR is an acronym for Optical Mark Recognition.
3. Printer: produces a hard copy document. It is an output device that accepts electronic data and prints them on a paper (hardware document).
4. Joystick: used for playing a car racing game on the computer
5. Sensor: turns on the light when someone enters the room. It can be defined as a device designed to detect changes or events within its immediate surroundings and then transfers this data to the central processing unit of a computer.
6. ROM: Contains 'boot up' instructions. ROM is acronym for read only memory and it contains the basic input and output system (BIOS) used during a computer start-up.
7. Pad and tablet: draws lines in an architectural design. They are an electronic device that can be used two or three dimensional shapes.
8. Modem: Modulates and demodulates signals. Modulation refers to the conversion of digital signals into an analogue signal while transmitting it over a line. Demodulation is the conversion of analogue signal into a digital signal.
9. Barcode reader: Reads data containing information on a product
10. MICR: reads digit specially printed on a cheque. MICR is an acronym for Magnetic Ink Character Recognition.
Section B
11. Banking industry: managing user accounts through the use of software applications.
12. Weather forecasting: predicting the weather through the use of software programs.
13. Household appliance: sequencing wash cycle tasks in a washing machine.
14. Manufacturing industry: using robots to assemble a car components.
