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Thursday, 17 January 2019

Information Technology (Questions & Answers ) - 42


Information Technology (Questions & Answers ) - 42
871. What is the most important software that runs on a computer ?
Operating system 

872. manages the computer's memory, process and all of its software & hard­ ware?
Operating system 

873. What is DOS ?
Disk Operating System 

874. A single user, single tasking operating system with basic Kernel's functions and only one program at a time can run on it is called-------? 
Disk Operating System

875. Which company's graphical operating system is Mac OS ?
Apple 

876. Which company developed the operating system Windows?
Microsoft 

877. Which is an operating system based on Linux Kernel and designed primarily for touch screen mobile devices such as smart phones and tablet computers? 
Android

878. Initially developed by Android Inc, which company bought the Android operating system in 2005 ?
Google 

879. What translate the symbolic codes of programs of assembly language into machine language ?
Assembler 

880. Which program translates whole source program written in some high level language into machine code at a time?
Compiler 

881. What is the name of the program that executes the instructions written in a high level language into machine code as line by line instructions ? 

Interpreter 

882. What is the name of the software which help to maintain & control computer resources ?
Utility Software 

883. Anti virus software, Disk tools & Back­ up software are the examples of which software? 
Utility software

884. A user defined specific of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform is called --- ---- ? 
Application software

885. MS Office, Excel & Power Point are examples of which softwares ?
Application software 

886. Which type of softwares aresometimes known as 'off-the-shelf' softwares?
General Purpose Software 

887. What is the name of the computer network covering a small physical area ( 1 Km or less)? 
Local Area Network (LAN)

888. A larger computer network that usually spans a city or a larger campus (5 to 15 km) is known as-------?
MAN (Metropolitan Area Network) 

889. What is the name of the computer net­ work that covers a broad area (cross metropolitan or regional boundaries)?
Wide Area Network (WAN) 

890. What is the name of the technology for using internet or another intermedi­ate network to connect computers to isolated remote computer networks? 
VPN (Virtual Private Network)

891. What is the global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication proto­cols? 
Internet

892. Which network later became the basis for the Internet ?
ARPANET 

893. In which year was the Internet services launched in India ? 
1995 

894. Which telecom company was the first to provide Internet services in India ? 
VSNL (Videsh Sanchar Nigam Limited) 

895. Which command is given to reboot the computer ? 
Ctrl+Alt+Del

896. In windows, the key combination to close a window is ?
Ctrl+F4 

897. What is the short cut key to open the open dialogue box ? 
Ctrl+FI2

898. What is the full form of MPEG ? 
Moving Picture Experts Group

899. JPEG stands for ? 
Joint Photographic Experts Group

900. PDF stands for ? 
Portable Document Format 
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