Download CBSE class 11th revision notes for Chapter 1  Computer Fundamentals class 11 Notes Computer Science in PDF format for free. Windows: Microsoft Windows is a series of graphical interface operating systems developed, marketed, and sold by Microsoft. When one computer system is set up to share data and information electronically with another computer system, communication becomes a system element. INFORMATICS PRACTICES NOTES FOR CLASS 11 DOWNLOAD IN PDF Chapter 1 : Introduction Computer System Part 1: Hardware Concept, Software Concepts, Primary Memory Unit, Output Devices Part 2 : Flow of Control in C, C++, Java, and Code wiht programming … SRAM retains its contents as long as the power is connected and is easy to interface to but uses six transistors per bit. In some ways, mainframes are more powerful than supercomputers because they support more simultaneous programs. 12 Class th. CBSE Computer Science Chapter 1 Computer Fundamentals class 11 Notes Computer Science in PDF are available for free download in myCBSEguide mobile app. Application software: a) Package Software/General Purpose software Ms. Office 2003, Ms. Office 2007, Macromedia (Dreamweaver, Flash, Freehand), Adobe (PageMaker, PhotoShop). Students will be at a great advantage by utilising class 11 notes. LANGUAGE PROCESSORS: Since a computer hardware is capable of understanding only machine level instructions, So it is necessary to convert the HLL into Machine Level Language. Refers to computer systems that support two or more simultaneous users. Exam Pattern. d) Micro Computer i. It is generally smaller in size than a desktop computer and larger than a notebook computer. Download revision notes for  Computer Fundamentals class 11 Notes Computer Science and score high in exams. • USER = Person, who operates computer. Units of Memory: The smallest unit is bit, which mean either 0 or 1. 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. © 2020 myCBSEguide | CBSE Papers & NCERT Solutions, Revision Notes for class-11 Business Studies, Revision Notes for class-11 Computer Science, Revision Notes for class-11 Informatics Practices, Computer Fundamentals class 11 Notes Computer Science, Introduction to CPP class 11 Notes Computer Science, Using CPP constructs class 11 Notes Computer Science, Functions in CPP class 11 Notes Computer Science, Arrays and Structures class 11 Notes Computer Science, Programming Methodology class 11 Notes Computer Science, Programming in C P P class 11 Notes Computer Science, Sociology and Society class 11 Notes Sociology, Indian Sociologists class 11 Notes Sociology, Free Online Test Series for CBSE Students, Case Study based Questions Class 10 Mathematics, CBSE Class 10 English Sample Paper 2020-21, How to add Subjective Questions in Online Tests, The Best Mobile App for CBSE and NCERT Syllabus. They are popularly associated with Desk Top operating system which run on standalone systems where no user accounts are required. It provides much higher data transfer speed in comparison with serial port. Each octal digit has its own value or weight expressed as a power of 8. We will work on your suggestions as soon as possible. Class 11 Computer Science notes according to FBISE syllabus. Some computers of this generation are ENIAC, EDVAC, EDSAC & UNIVAC-1. Input Devices: Those devices which help to enter data into computer system. Free PDF download of Class 11 Accountancy Chapter-13 Computerised Accounting System Revision Notes & Short Key-notes prepared by our expert Accountancy teachers from latest edition of CBSE(NCERT) books. 3. ii. So here we are starting the chapter Introduction to Computer System. c) Mini Computer A midsized computer. A freely-distributable open source operating system that runs on a number of hardware platforms. Check out the latest CBSE NCERT Class 11 Computer Science Syllabus.The syllabus is for the academic year 2020-21 session. Students who are in Class 11 or preparing for any exam which is based on Class 11 Informatics Practices can refer NCERT Book for their preparation. First Generation (1940-56): The first generation computers used vaccum tubes & machine language was used for giving the instructions. These computer were large in size & their programming was difficult task. Software and Classification. The revision notes help you revise the whole chapter in minutes. All buses consist of two parts — an address bus and a data bus. A 16-bit microprocessor can process data and memory addresses that are represented by 16 bits. Computer System All of the components of a computer system can be summarized with the simple equations. Communication Bus:- In computer architecture, a bus is a system that transfers data between computer components or between computers. In the hierarchy that starts with a simple microprocessor (in watches, for example) at the bottom and moves to supercomputers at the top, mainframes are just below supercomputers. Serial port(COM Port): A serial port transmit data one bit at a time. • Symbian: Symbian is a mobile operating system (OS) targeted at mobile phones that offers a high-level of integration with communication and personal information management (PIM) functionality. • Android: Android is a Linux-based mobile phone operating system developed by Google. Booting The process of loading the system files of the operating system from the disk into the computer memory to complete the circuitry requirement of the computer system is called booting. ISCII code retains all ASCII characters and offers coding for Indian scripts also. All HLL support is done in software. it can send several bits simultaneously. Ans. C. Octal Number System: It has eight unique symbols i.e. Download 11th Class Notes for Computer Science with Instant Activation to read it anywhere. • Software = Programs Software gives “intelligence” to the computer. High capacity hard disk were invented. Eg. These are the  Computer Fundamentals class 11 Notes Computer Science prepared by team of expert teachers. PARAM, Pace & Flosolver are the supercomputer made in India. The faster the clock, the more instructions the CPU can execute per second. Answer: Two […] Primary memory stored on secondary memory is called virtual memory. 2015 | 2014 | 2013. ISCII (American standard code for information interchange): To use the Indian language on computers, ISCII codes are used. • Distributed Operating System: An operating system that manages a group of independent computers and makes them appear to be a single computer is known as a distributed operating system. Ans. Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces (GUIs). Also present is an up-and-coming system, Linux, which is an open source system based on UNIX (an alternate PC-compatible system dating to the late 1970s; it was more complex and used for industrial, rather than home, use). Convert from octal to binary, 1. 3. ICS Part 1. It is also called base-10 system. Infrared Port: An IR port is a port which sends and receives infrared signals from other devices. It has base of 8. all of The incoming port enables the device to receive connections from Bluetooth devices while the outgoing port makes connections to Bluetooth devices. Saweel ur Raheem. Short Notes On Instructional Planning And Teaching Methods. SRAM is not worthwhile for desktop system memory, where DRAM dominates, but is used for their cache memories. (Do yourself). 16. Class 11 Computer Science Notes View and Download: Class 11 Computer Science Notes You will find: Chapter 1 – Overview of Computer System Notes; Chapter 2 – Computer Memory Notes; Chapter 3 – Central Processing Unit Notes; Chapter 4 – Inside System Unit Notes; Chapter 5 – Network Communications and protocols Notes Eg. This is a bus that connects all the internal computer components to the CPU and main memory. The distances between all pairs of particles of such a body do not change. CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. Clock speed: Also called clock rate, the speed at which a microprocessor executes instructions. The fourth Generation(1972- present): LSI & VLSI were used in this generation. (Do yourself), 12. Revising notes in exam days is on of the best tips recommended by teachers during exam days. Intel 80386 processor, Intel 80486 64 bit Microprocessor: It indicates the width of the registers; a special high-speed storage area within the CPU. Computer is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instructions (called program) and gives the result (output) and saves output for the future use. ... Notes Cahpter 2 Computer Science ICS Part 1 Notes - Inter Part 1 Notes You can think of a bus as a highway on which data travels within a computer. Computer hardware is the collection of physical elements that constitutes a computer system. Visit www.ncerthelp.com For All NCERT solutions, CBSE sample papers, Question papers, Notes for Class 6 to 12 Eg. Memory to memory addressing mode. Model Question for Computer Science Class 11; Introduction to Computer. A 32-bit microprocessor can process data and memory addresses that are represented by 32 bits. control of nuclear power plants, oil refining, chemical processing and traffic control systems, air • Single User Systems: Provides a platform for only one user at a time. Microsoft Windows came to dominate the world’s personal computer market with over 90% market share, overtaking Mac OS, which had been introduced in 1984.The most recent client version of Windows is Windows 7; the most recent server version is Windows Server 2008 R2; the most recent mobile version is Windows Phone 7.5. High level languages invented in this generation. Palmtop Computer/Digital Diary /Notebook /PDAs: a hand-sized computer. In size and power, minicomputers lie between workstations and mainframes. (After we round and cut the number) Convert from decimal to hexadecimal, (After we round and cut the number) Convert from octal to decimal Index the digits of the number 5150.1-13-25-31-43-56-6 We multiply each digit 5* 81 +5*80 +1*8-1 +3*8-2 +5*8-3 +1*8-4 +3*8-5 +6*8-6 = 40 + 5 + 0.125 + 0.03125 + 0.009766 + 0.000244 + 0.0001 + 0.0000229 = 45.1663829(10), Convert from hexadecimal to decimal Index the digits of the number 2 1130.2-114-29-37-48-513-6 We multiply each digit 2*161 +13*160 +2*16-1 +14*16-2 +9*16-3 +7*16-4 +8*16-5 +13*16-6 = 32 + 13 + 0.125 + 0.0546875 + 0.00219727 + 0.00010681 + 0.00000762 + 0.00000077 = 45.18199997(10) Convert from binary to octal: For this conversion make the group of three digits from right to left before decimal & left to right after decimal then assign the specific octal value. There are three Language processors: A. Compiler: It is translator which coverts the HLL language into machine language in one go. (AF2)16 to Binary v. 0101110.1010110 to Hexadecimal. CBSE Revision notes for Class 11 Computer Science PDF, CBSE Revision notes Class 11 Computer Science – CBSE, CBSE Revisions notes and Key Points Class 11 Computer Science, Summary of the NCERT books all chapters in Computer Science class 11, Short notes for CBSE class 11th Computer Science, Key notes and chapter summary of Computer Science class 11. C. Assembler: It translate the assembly language into machine code. We can save these results in the storage devices for the future use. In this article, you will find Introduction to Computer System IP class 11 notes for CBSE Informatics practices class 11 Notes for chapter 1. Interfaces. However, It is slow in processing as compare to compiler. Make sure to comment down your experience regarding our website. All copyrights are reserved with ClassNotes.xyz for all the notes. Ans. It refers to the physical devices used to store programs (sequences of instructions) or data (e.g. Federal Board | Past Papers | Notes | A-Level. Performs only basic functions. 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. D. Hexadecimal Number System: The hexadecimal system uses base 16. The 1394 interface is comparable with USB and often those two technologies are considered together, though USB has more market share. (Do yourself), 8. Intel core i7. The base of octal system is 8. Ans. Software Software, simply are the computer programs. It hosts the several applications that run on a computer and handles the operations of computer hardware. Justify your answer. The notes are all prepared by subject experts, and they have kept the study … The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices. While current optical disc technologies such as DVD, DVD±R, DVD±RW, and DVD-RAM rely on a red laser to read and write data, the new format uses a blue-violet laser instead, hence the name Blu-ray. Exercise. CENTRAL PROCESSING UNIT (CPU) The main component to make a computer operate is the computer chip or microprocessor. For example, if two numbers are to be multiplied, both numbers must be in registers, and the result is also placed in a register. Ch # 2 - Computer Memory. Microprocessor. For example, weather forecasting requires a supercomputer. Class 11 Computer Science Notes - Chapter 1 - Overview of Computer System - Exercise. On the basis of Size a) Super Computer The fastest type of computer. Memory. Quantum computation and molecular and nanotechnology will radically change the face of computers in years to come. Non Volatile Memory (ROM) Non-volatile memory is computer memory that can retain the stored information even when not powered. c) Hybrid Computer (Analog + Digital) A combination of computers those are capable of inputting and outputting in both digital and analog signals. OFF state of an electronic circuit. Questions and fun facts related to Class 11 Computer Notes will also be shared on our facebook page so you can ace your Computer Science examination. ROM, 3. Exercise. An electronic circuit has two states either ON state or OFF state. Multiple Choice Questions. System Bus I/O Module Buffers Instruction 0 1 2 n - 2 n - 1 Data Data Data Data Instruction Instruction Figure 1.1 Computer Components: Top-Level View PC = Program counter IR = Instruction register MAR = Memory address register MBR = Memory buffer register I/O AR = Input/output address register I/O BR = Input/output buffer register Execution unit Output Devices: Those devices which help to display the processed information. ROMs, PROMs and EPROMs that have data or programs recorded on them are Firmware. Distributed computations are carried out on more than one machine. COMPUTER SYSTEM Some decades ago, computers were known to a common man as simply a fast calculating device. Components of Computer System: Input, output, Processor and Storage. Class 11 Computer Science Notes PDF Free Download. To register Online Tuitions on Vedantu.com to clear your doubts. Notes. Download Revision Notes for CBSE Class 11 Computer Science.Short notes, brief explanation, chapter summary, quick revision notes, mind maps and formulas made for all important topics in Computer Science in Class 11 available for free download in pdf, click on the below links to access topic wise chapter notes based on 2020 2021 syllabus and guidelines issued for Grade 11. There’s no denying the importance of the study of Computer Science in this age of Information Technology. Every computer contains an internal clock that regulates the rate at which instructions are executed and synchronizes all the various computer components. Concept of system bus. Laptop Computer: a portable computer complete with an integrated screen and keyboard. What do you mean by LPT port? Computer Science is the systematic study of the feasibility, structure, expression, and mechanization of the methodical processes (or algorithms) that underlie the acquisition, representation, processing, storage,communication of, and access to information, whether such information is … Computer architecture is a specification detailing how a set of software and hardware technology standards interact to form a computer system or platform. 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. When used in reference to personal computers, the term bus usually refers to internal bus. Ans. The Third Generation(1964-71): The 3rd generation computers replaced transistors with Integrated circuit known as chip. All data must be represented in a register before it can be processed.
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