Computer Awareness Mixed Quiz: Set 3

A chip of this kind has a small quartz window, and shining ultraviolet light through it clears the stored contents so the chip can be programmed again.

In MS-Word 2016 the button marked 'Aa' in the Font group of the Home tab opens the Change Case menu, which rewrites the selected text without retyping it.

The device does two opposite jobs, and the name simply joins them. While sending, it modulates: it converts the digital signal of the computer into an analogue signal that an ordinary line can carry.

In Microsoft PowerPoint, pressing F5 starts the slide show from the first slide, whichever slide you are working on at that moment.

A register is built into the CPU itself and holds the word the arithmetic and logic unit is operating on at that instant, so it is read and written in a single clock cycle.

HTTP stands for HyperText Transfer Protocol and it is the set of rules by which a browser asks a web server for a page and the server sends it back, which is how data on the World Wide Web is reached.

The kernel is the central part of the operating system and is the portion that is loaded at boot time and stays resident in main memory for as long as the computer is running.

A LAN joins computers and devices inside a small area such as one room, one building or a campus.

In Microsoft PowerPoint, pressing Ctrl + M adds a new slide right after the one you are on, using the layout of the current slide.

The 2's complement of a binary number is found in two steps: flip every bit to get the 1's complement, then add 1.

The Post Office Protocol, best known in its third version POP3, lets a mail client download messages from a mail server, and it works in two modes.

A firewall stands between a trusted private network and an untrusted one such as the internet, and checks the data going in and out.

Hexadecimal is base sixteen, so the four places of C3B1 carry the weights 4096, 256, 16 and 1 from left to right, and the letters stand for numbers: A is 10, B is 11, C is 12, D is 13, E is 14 and F is 15.

A memory card keeps data in flash memory, a semiconductor chip with no moving parts, so it is solid-state storage and not magnetic.

Unwanted bulk messages sent to many people to advertise something are called spam. Spam usually arrives as e-mail, but the same word is used for unwanted SMS, blog comments and social media messages.

An operating system is the system software that loads when a laptop starts and then runs the machine: it shares out memory, decides which program gets the processor and for how long, keeps files and folders in order on the disk, talks to the keyboard, screen and printer through device…

A file with the.tmp extension is a temporary file, created by a program while it is working and normally deleted once the work is done.

The National Digital Library of India is a single window that brings together lakhs of learning resources, from school books to research papers, and lets a student search them free of cost in many Indian languages.

A hard disk is a secondary storage device that keeps programs and files permanently, even when the power is off, and it sits outside the processor.

A toggle key switches a feature on with one press and off with the next, so it has two states and keeps whichever one you left it in.