Computer Awareness GK Questions with Answers – Page 2

Released by IBM in 1957, Fortran is the oldest of the four and is often called the first widely used high-level programming language.

ONDC lets a buyer on one app buy from a seller listed on any other app on the network.

In dropshipping the seller runs the shop and sets the price, while a supplier holds the stock and ships each order straight to the buyer.

WannaCry and Petya are ransomware, and EternalBlue is the Windows exploit that helped them spread. EternalBlue was a hacking tool that exploited a flaw in Microsoft Windows' Server Message Block, the protocol computers use to share files over a network.

CDMA is a channel access method that lets many mobile users share the same radio frequency band at the same time.

At the common MP3 bit rate of 128 kilobits per second, one hour of music takes roughly 55 to 60 megabytes, so about 50 MB is the closest figure.

Of the sectors listed, only Power and Energy and Banking and Financial Services are among the critical sectors named by NCIIPC.

UNIX was designed from the start as a time-sharing system, so this statement is false. UNIX was developed at Bell Labs from 1969 by Ken Thompson and Dennis Ritchie.

Flash memory is erased electrically, not by ultraviolet light, so this is not one of its features. Flash memory is a type of EEPROM (electrically erasable programmable read-only memory) that can erase and rewrite whole blocks at a time, which makes it fast.

x86 and MIPS assembly are low-level languages written for particular processor families, while Python and Java are high-level languages. An assembly language uses short mnemonics such as MOV, ADD and JMP that stand directly for a processor's machine instructions, so each family of processors has its own.

Public Key Infrastructure (PKI) is the system of keys and certificates that secures digital signatures and encrypted communication. PKI uses a pair of keys for each user: a public key that anyone can see and a private key kept secret.

Project Loon used high-altitude balloons to beam internet access to remote areas. Project Loon was developed by X, the research lab of Google's parent company Alphabet, and began trials in New Zealand in 2013.

The correct answer is A, C-DAC, Pune, the Centre for Development of Advanced Computing, which besides building India's PARAM series of supercomputers created the GIST range of Indian language technology, including the add-on card and software that let ordinary computers display and print Indian scripts, and the LEAP Office suite…

The Technology Development for Indian Languages programme, known as TDIL, develops and distributes fonts, dictionaries, corpora, optical character recognition, speech and machine translation tools for Indian languages, and it maintains a data centre from which these resources are shared.

Every Devanagari consonant carries an inherent short vowel, and the virama cancels it, giving the bare consonant; when a bare consonant is followed by another consonant the rendering engine joins the two into a conjunct or half form, which is why the virama is the key character in Devanagari text…

Standard ASCII uses seven bits, and two raised to the power seven is 128, which covers the uppercase and lowercase English letters, the ten digits, punctuation and thirty-three control characters.

UTF-8 is a variable width encoding: code points up to U+007F take one byte, the next range takes two bytes, code points from U+0800 up to the end of the Basic Multilingual Plane take three bytes, and anything beyond that plane takes four.

The correct answer is A, Mangal, the Devanagari Unicode font shipped with Windows and the font that government typing tests pair with the InScript layout; later Windows versions also carry Nirmala UI, Aparajita, Kokila and Utsaah as Unicode Devanagari fonts.

Kruti Dev places Devanagari glyphs on the code positions of English letters, so the computer stores ordinary ASCII characters while the reader sees Hindi; open the file on a machine without that font and the text appears as meaningless Roman letters and symbols, and it cannot be searched or indexed.

InScript, short for Indian Script, is the standard layout notified by the Government of India and built into Windows, Linux, macOS and Android; it places vowels and matras under the left hand and consonants under the right in the dictionary order of the script, so the same layout works for…