Computer Awareness Mixed Quiz: Set 9

Integrated circuits are classified by how many logic gates are packed on a single chip.

The plain remove-directory command is built to delete an empty folder only. In Windows it is rmdir, also written rd, and in Linux it is rmdir; both stop with a message such as "The directory is not empty" when anything is still inside.

A joystick is an input device with a stick fixed in a base that can be tilted in several directions, and the movement of the stick moves an image or a pointer on the screen in the same direction.

Drupal is a content management system, a free program used to build and run websites; it keeps its pages in a database but is not itself a database management system.

Computer storage is counted in powers of two, so each step up the ladder multiplies by 1024, and one gigabyte equals 1024 megabytes.

A high-level language is written in words close to English and has to be turned into machine code by a compiler or an interpreter, so the programmer need not know the processor at all.

The system development life cycle, or SDLC, is the set of stages followed while building a software system, and feasibility study, coding and implementation are all stages of it.

The Internet of Things means giving everyday objects — machines, sensors, meters, shelves, vehicles — an address on the internet so that they can report what they sense and be controlled from a distance.

With a word or a phrase selected, Ctrl + K opens the Insert Hyperlink dialog box, where the selected text can be linked to a web address, to another file, to a place inside the same document such as a heading or a bookmark, or to an email address.

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.

Excel treats whatever follows an equals sign as something to be calculated, so =A1+B1 adds the two cells and =SUM(A1:A10) totals a range.

F1 is the function key that opens Help in Windows and in almost every Microsoft Office program, which is why it is the first key on the row.

Pressing F5 anywhere in a presentation closes the editing window and runs the slide show from slide one, whichever slide you were working on.

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

When a letter is deleted from a mailbox it is not wiped out at once. It is moved to a folder called Trash, or Bin in some services, and kept there for a fixed number of days so that a letter deleted by mistake can be restored.

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.

In a packet switched network a packet meets four kinds of delay at every router on its path, and transmission, processing and queuing delays are three of them.

The ones complement of a binary number is found by simply inverting every bit, turning each 0 into 1 and each 1 into 0.

In an entity relationship diagram each symbol has a fixed meaning, and an attribute that can hold more than one value for the same entity, such as a person's several phone numbers, is drawn as a double ellipse.

In MS Excel 365, Ctrl + Y repeats the last command or action wherever repeating it is possible, so if you have just made a cell bold or inserted a row, pressing Ctrl + Y does the same thing again at the new position.