The War Years • the relay-based IBM reaches 1 MPS. • ABC - first electronic digital computer (Atanasoff. & Berry). • Z3 - first. Dear friends i am sharing Computer Fundamental download Hindi pdf. MS-Excel MCQ Download pdf file. C Language pdf Notes Download for O level, BCA, MCA. Basic Computer Knowledge in Hindi PDF(बेसिक कंप्यूटर ज्ञान PDF) Dear Students Competitive Exam की तैयारी कर रहे छात्र.
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F rom a number of days our readers have been asking us to post some material to learn computer in Hindi language. Finally today we've. Unit – I Brief History of Development of Computers, Computer System Concept, Computer Sys- tem Characteristics,Capabilities and Limitations. Computer GK कम्प्यूटर जीके. Mode: PDF. Total Number of Questions: Questions. Language: Hindi. Size: 2 MB. Author: SarkariHelp.
Discover How your Computer Works.
downloading a Computer 4. Getting Started with your Computer 5.
Using Software 6. Computer Networks 7. Using Multimedia 8. Working with Portable computers. Connecting to Internet Features: 1.
Another term for multi-user is time sharing. Ex: All mainframes are multi-user systems. Distributed computations are carried out on more than one machine. When computers in a group work in cooperation, they make a distributed system. Commonly used operating system UNIX: Pronounced yoo-niks, a popular multi-user, multitasking operating system developed at Bell Labs in the early s.
UNIX was one of the first operating systems to be written in a high-level programming language, namely C. This meant that it could be installed on virtually any computer for which a C compiler existed.
A freely-distributable open source operating system that runs on a number of hardware platforms.
The Linux kernel was developed mainly by Linus Torvalds and it is based on Unix. Windows: Microsoft Windows is a series of graphical interface operating systems developed, marketed, and sold by Microsoft. The most recent client version of Windows is Windows 7; the most recent server version is Windows Server R2; the most recent mobile version is Windows Phone 7.
It superseded their earlier SunOS in This release aims more at the security part and comes with an easy to use application to harden your Desktop.
Mobile OS: A mobile operating system, also called a mobile OS, is an operating system that is specifically designed to run on mobile devices such as mobile phones, smartphones, PDAs, tablet computers and other handheld devices. The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices.
Android is unique because Google is actively developing the platform but giving it away for free to hardware manufacturers and phone carriers who want to use Android on their devices. Symbian OS combines middleware with wireless communications through an integrated mailbox and the integration of Java and PIM functionality agenda and contacts.
The Symbian OS is open for third-party development by independent software vendors, enterprise IT departments, network operators and Symbian OS licensees.
There are three Language processors: A. Compiler: It is translator which coverts the HLL language into machine language in one go.
Interpreter: It is a translator which converts the HLL language into machine language line by line. It takes one statement of HLL and converts it into machine code which is immediately executed.
However, It is slow in processing as compare to compiler. Assembler: It translate the assembly language into machine code. Terminologies: Registers: A register is a very small amount of very fast memory that is built into the CPU central processing unit in order to speed up its operations by providing quick access to commonly used values. All data must be represented in a register before it can be processed.
For example, if two numbers are to be multiplied, both numbers must be in registers, and the result is also placed in a register. Bus: A collection of wires through which data is transmitted from one part of a computer to another. What Happened? Answer : We probably pressed the "insert" key on our keyboard.
The toggle to "insert" is "replace". The "replace" works in some programs but not all. Answer : All household hazardous materials including electronic components VCRs, computers, monitors, computer parts etc.
Answer : Before you leave, check the home page of your ISP. Look for "Web mail" or something similar.