Application software: a) Package Software/General Purpose software Ms. Office 2003, Ms. Office 2007, Macromedia (Dreamweaver, Flash, Freehand), Adobe (PageMaker, PhotoShop). There is great development in data communication. When one computer system is set up to share data and information electronically with another computer system, communication becomes a system element. Symbian OS combines middleware with wireless communications through an integrated mailbox and the integration of Java and PIM functionality (agenda and contacts). Why we need it? 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 For example, a 16-bit bus can transmit 16 bits of data, whereas a 32-bit bus can transmit 32 bits. Rahul-NOTES provides BBS Notes (TU), HSEB Notes, (Class 11 and 12), SEE Notes, Computer Class Notes, Microsoft Office Notes, Tally, Swastic, QBasic, Online computer education in nepali Language also Available in our blog. Class 11 Computer Science Notes PDF Free Download. Example: Unix • Multi-tasking and Single-tasking Operating Systems: When a single program is allowed to run at a time, the system is grouped under the single-tasking system category, while in case the operating system allows for execution of multiple tasks at a time, it is classified as a multi­tasking operating system. Firmware is a combination of software and hardware. (Do yourself). The computers using this technology known to be Micro Computers. Clock speed: Also called clock rate, the speed at which a microprocessor executes instructions. How to Create Worksheets using Test Generator? 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. The control bus is used by the CPU to direct and monitor the actions of the other functional areas of the computer. PDF download free. Software Software, simply are the computer programs. • Multi User Systems: Provides regulated access for a number of users by maintaining a database of known users. Concept of Computer Architecture and Organization. However, DRAM uses only one transistor and a capacitor per bit, allowing it to reach much higher densities and, with more bits on a memory chip, be much cheaper per bit. b) Mainframe Computer A very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously. Volatile memory(RAM) Volatile memory is computer memory that requires power to maintain the stored information. On the basis of Size a) Super Computer The fastest type of computer. c) Hybrid Computer (Analog + Digital) A combination of computers those are capable of inputting and outputting in both digital and analog signals. The concepts should be clear which will help in faster learning. 8086 processor 32 bit Microprocessor: It indicates the width of the registers. By comparison, current 32-bit CISC and RISC microprocessor architectures depend on 32-bit registers, branch prediction, memory latency, and implicit parallelism, which are considered a less efficient approach in microarchitecture design. OFF state of an electronic circuit. In other words, the manner on which the various individual system are connected by wires, cables, phone lines, microwave, Wi-Fi or satellite is an element of the total computer system. 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. D. Hexadecimal Number System: The hexadecimal system uses base 16. ISCII code retains all ASCII characters and offers coding for Indian scripts also. Download CBSE class 11th revision notes for Chapter 1  Computer Fundamentals class 11 Notes Computer Science in PDF format for free. 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 … Revising notes in exam days is on of the best tips recommended by teachers during exam days. Computer System All of the components of a computer system can be summarized with the simple equations. Notes for 11th . Distributed computations are carried out on more than one machine. Memory: It facilitates the remembrance power to computer system. Commonly used operating system UNIX: Pronounced yoo-niks, a popular multi-user, multitasking operating system developed at Bell Labs in the early 1970s. Select Education Level Select a Class to search your require Notes. We will keep adding updated notes, past papers, guess papers and other materials with time. Windows: Microsoft Windows is a series of graphical interface operating systems developed, marketed, and sold by Microsoft. The Third Generation(1964-71): The 3rd generation computers replaced transistors with Integrated circuit known as chip. Class 11 Computer Science notes on Chapter 1  Computer Fundamentals class 11 Notes Computer Science are also available for download in CBSE Guide website. It is an 8-bit code capable of coding 256 characters. Chapter One : Introduction to Computer ... Computer Science | HSEB Notes; Types of Programming Languages; Application Package. In size and power, minicomputers lie between workstations and mainframes. • To inculcate the skills of implementation of basic theory in troubleshooting the software & hardware problems. The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices. Why? Internal Storage encoding of Characters: ASCII (American standard code for information interchange): ASCII code is most widely used alphanumeric code used in computers. Parallel Port (LPT ports): It supports parallel communication i.e. The following are some examples of binary numbers: 1011012 112 1011¾ Conversion from Decimal to Binary or Binary to Decimal Convert from decimal to binary, (After we round and cut the number) Conversion from Binary to Decimal, Index the digits of the number 150413120110.0-10-21-30-41-51-61-7, Multiply each digit 1*25 +0*24 +1*23 +1*22 +0*21 +1*20 +0*2-1 +0*2-2 +1*2-3 +0*2-4 +1*2-5 +1*2-6 +1*2-7 = 32 + 0 + 8 + 4 + 0 + 1 + 0 + 0 + 0.125 + 0 + 0.03125 + 0.015625 + 0.007813 = 45.179688(10). d) Micro Computer i. Memory. Which is better for translator & why? (236)8 to Binary iii. myCBSEguide | CBSE Papers & NCERT Solutions. Supercomputers are very expensive and are employed for specialized applications that require immense amounts of mathematical calculations. Learning the important concepts is very important for every student to get better marks in examinations. Visit www.ncerthelp.com For All NCERT solutions, CBSE sample papers, Question papers, Notes for Class 6 to 12 Eg. In this context, workstation is just a generic term for a user’s machine (client machine) in contrast to a “server” or “mainframe.”. Octal number system is used as a shorthand representation of long binary numbers. Each digit position in this system represents a power of 8. Next article Chemistry Practical Notes Class 12th. All HLL support is done in software. From Small scale integrated circuits which had 10 transistors per chip, technology developed to MSI circuits with 100 transistors per chip. Here in this Section, we have mentioned the Class 11 Computer Science Exam Pattern. 16. The notes are all prepared by subject experts, and they have kept the study … These computers were smaller, faster & more reliable. Monitor, Printer, Plotter, Projector. Exam Pattern. Dynamic RAM is more complicated to interface to and control and needs regular refresh cycles to prevent its contents being lost. Bus is a group of wires that connects different components of the computer. • Warm Booting: If the computer is already ‘ON’ and we restart it by pressing the ‘RESET’ button from the CPU box or CTRL, ALT and DEL key simultaneously from the keyboard then it is called warm booting. It is also called base-10 system. Class 11 Computer Science Notes - Chapter 1 - Overview of Computer System - Important Short Questions that contain short questions. NUMBER SYSTEM: A. Decimal Number System: Decimal Number system composed of 10 numerals or symbols. b) Digital Computer A computer that performs calculations and logical operations with quantities represented as digits, usually in the binary number system. Eg. It has 16 possible digit symbols. Desktop Computer: a personal or micro-mini computer sufficient to fit on a desk. Memory (i) Ans. USB is also much smarter and more versatile since it allows the “daisy chaining” of up to 127 USB peripherals connected to one port. Some computers of this generation are ENIAC, EDVAC, EDSAC & UNIVAC-1. Answer: A computer is also called a data processor because it can store, process and retrieve data whenever desired. 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. Here you can read Chapter 1 of Class 11 Computer Science NCERT Book. Students will be at a great advantage by utilising class 11 notes. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. 5. It is a positional value system in which the value of a digit depends on its position. If you find any mistake or any problem with the notes, please send us an email at [email protected]. SOLARIS: Solaris is a Unix operating system originally developed by Sun Microsystems. Short Questions. Difference between RISC & CISC architecture RISC (Reduced Instruction Set Computing): 1. Download revision notes for  Computer Fundamentals class 11 Notes Computer Science and score high in exams. 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. Previous article Past Papers Solved Notes for Computer Science Class 11. Eg. This is referred to as the Central Processing Unit (CPU) and is housed in the computer case. SRAM is not worthwhile for desktop system memory, where DRAM dominates, but is used for their cache memories. It is of two types- L1 cache is on the same chip as the microprocessor. Eg. Notes for 11th . The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc. To download  Computer Fundamentals class 11 Notes, sample paper for class 11 Chemistry, Physics, Biology, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. Components of Computer System: Input, output, Processor and Storage. The base of octal system is 8. 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Which memory is responsible for booting of system. Pentium dual core, core 2 duo. All HLL support is done in Hardware. They are popularly associated with Desk Top operating system which run on standalone systems where no user accounts are required. 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 Input Devices. Systems of Particles and Rotational Motion Class 11 Notes Physics Chapter 7 • A rigid body is a body with a perfectly definite and unchanging shape. We are working hard to provide the best resources for your studies, your suggestions in this regard will also be highly appreciated. program state information) on a temporary or permanent basis for use in a computer or other digital electronic device. 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). CBSE Notes for Class 9 Foundation of Information Technology – Computer System. The Symbian OS is open for third-party development by independent software vendors, enterprise IT departments, network operators and Symbian OS licensees. Different types of port are available on motherboard as serial port, parallel port, PS/2 port, USB port, SCSI port etc. Notes. CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. NCERT Book for Class 11 Class 11 Informatics Practices Chapter 1 Computer System is available for reading or download on this page. It performs arithmetic and logic operations. Also called communication port. Microprocessor: A microprocessor is a semiconductor chip, which is manufactured using the Large Scale integration (LSI) or Very Large Scale Integration (VLSI), which comprises Arithmetic Logic Unit, Control unit and Central Processing Unit (CPU) fabricated on a single chip. These notes will certainly save your time during stressful exam days. 12 Class th. Ans. USB (Universal Serial Bus): It is a newer type of serial connection that is much faster than the old serial ports. 4. Ans. Computer Science HSEB Notes on Introduction to Computer Grade : XI What is Computer Science? Which port a mouse should be connected? Ans. Serial cables are cheaper to make than parallel cables and easier to shield from interference. The bit 1 represents the high voltage i.e. CBSE Class 11 Computer Science Revision Notes Chapter-1 Computer Fundamentals class 11 Notes Computer Science. Sold by Microsoft possible code groups data is transmitted from one component to another to specify the address bus -... 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