As a result microprocessors came into existence. Using these symbols as digits we can express any quantity. (236)8 to Binary iii. Palmtops have no keyboard but the screen serves both as an input and output device. Secondary Memory: A. Intel 80386 processor, Intel 80486 64 bit Microprocessor: It indicates the width of the registers; a special high-speed storage area within the CPU. 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). Class 11 Computer Notes are free and will always remain free. Memory (i) But in general, a minicomputer is a multiprocessing system capable of supporting from 4 to about 200 users simultaneously. In the past decade, the distinction between large minicomputers and small mainframes has blurred, however, as has the distinction between small minicomputers and workstations. Bus: A collection of wires through which data is transmitted from one part of a computer to another. Download CBSE Class 11 Informatics Practices Hardware Notes in pdf, Informatics Practices chapter notes, class notes mind maps formulas Revision Notes CBSE Class XI Informatics Practices Hardware Concepts. It superseded their earlier SunOS in 1993. Parallel Port (LPT ports): It supports parallel communication i.e. Cache Memory: Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. (AF2)16 to Binary v. 0101110.1010110 to Hexadecimal. All data must be represented in a register before it can be processed. Federal Board | Past Papers | Notes | A-Level. • 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. Multiple Choice Questions. (266)10 to Hexadecimal iv. The base of octal system is 8. Students will be at a great advantage by utilising class 11 notes. envisions the education system of the country to be redefined through active engagement, discussions, required assistance and by bringing the right information to your fingertips. Computer software is considered to be the heart of computer systems. What do you mean by term firmware? Eg. CENTRAL PROCESSING UNIT (CPU) The main component to make a computer operate is the computer chip or microprocessor. Interfaces. all of 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. These are the  Computer Fundamentals class 11 Notes Computer Science prepared by team of expert teachers. 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. A Source program in High Level Language get converted into Object Program in Machine Level Language. Don’t forget to like our facebook page for updates regarding new material on our website. Internal Storage encoding of Characters: ASCII (American standard code for information interchange): ASCII code is most widely used alphanumeric code used in computers. Visit For All NCERT solutions, CBSE sample papers, Question papers, Notes for Class 6 to 12 Notes for 11th . ON state and the bit 0 represents the low voltage i.e. Desktop Computer: a personal or micro-mini computer sufficient to fit on a desk. Answer: A computer is considered as a system, because of different units work as a single unit in computer for central objective ,that’s why it is a system or a computer system. Volatile memory(RAM) Volatile memory is computer memory that requires power to maintain the stored information. A Bluetooth port enables connections for Bluetooth-enabled devices for synchronizing. We will keep adding updated notes, past papers, guess papers and other materials with time. Facebook Twitter LinkedIn reddit Report Mistakes in Notes Issue: * Mistakes in notes Wrong MCQ option The page is not clearly visible Answer quality needs to be improved Your Name: * Details: * Submit Report 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. High capacity hard disk were invented. It is totally internal process of the computer system. Non Volatile Memory (ROM) Non-volatile memory is computer memory that can retain the stored information even when not powered. The value is formed by the sum of each digit, multiplied by the base (in this case it is 10 because there are 10 digits in decimal system) in power of digit position (counting from zero): Decimal numbers would be written like this: 12710 1110 567310, B. Binary Number System: In Binary Number system there are only two digits i.e. CBSE Schools Educational Study Material. It is the collection of letters, numbers, images etc. USB (Universal Serial Bus): It is a newer type of serial connection that is much faster than the old serial ports. 128 bit Microprocessor: It indicates the width of the registers. Ch # 2 - Computer Memory. The CPU requires a fixed number of clock ticks (or clock cycles) to execute each instruction. Learning the important concepts is very important for every student to get better marks in examinations. Easy notes that contain exercise of the chapter. What do you mean by RISC & CISC? program state information) on a temporary or permanent basis for use in a computer or other digital electronic device. b) Mainframe Computer A very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously. • To inculcate the skills of implementation of basic theory in troubleshooting the software & hardware problems. 0 to 7. Contents1 NCERT Solutions for Class 11 Computer Science (Python) – Software Concepts1.1 TOPIC – 1 Software Basics1.2 TOPIC-2 Operating System(OS) NCERT Solutions for Class 11 Computer Science (Python) – Software Concepts TOPIC – 1 Software Basics Very Short Answer type Questions [1 mark each] Question 1: Name any two popular word processing software. We will also introduce a mobile app for viewing all the notes on mobile. In Bike-speedometer, voltmeter. 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 … A thorough knowledge of the subject not only gives you an added advantage over others in getting admissions in colleges but also opens up a number of job opportunities in the IT sector. Firewire is sought for high speed devices with more data like camcorders. 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 Also after the chapter you can get links to Class 11 Computer Science Notes, NCERT Solutions, Important Question, Practice Papers, etc. The size of a bus, known as its width, is important because it determines how much data can be transmitted at one time. 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. Class 11 Computer Science Notes Chapter 1 Computer Fundamental. 0 or 1. USB is host based, mean device must connect to computer while Firewire is peer-to-peer. Eg. The control bus is used by the CPU to direct and monitor the actions of the other functional areas of the computer. NCERT Solutions, NCERT Exemplars, Revison Notes, Free Videos, CBSE Papers, MCQ Tests & more. 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. Example: DOS. To register Online Tuitions on to clear your doubts. The data bus transfers actual data whereas the address bus transfers information about where the data should go. 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. The notes are all prepared by subject experts, and they have kept the study … 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. It uses the digits 0 through 9 plus the letters A, B, C, D, E, F as 16 digit symbols. Intel core i7. Notes. Ans. Chapter One : Introduction to Computer ... Computer Science | HSEB Notes; Types of Programming Languages; Application Package. Class 11 Computer Science Notes - Chapter 1 - Overview of Computer System - Important Short Questions that contain short questions. All the programs used in computer to perform specific task is called Software. There’s no denying the importance of the study of Computer Science in this age of Information Technology. PARAM, Pace & Flosolver are the supercomputer made in India. ISCII (American standard code for information interchange): To use the Indian language on computers, ISCII codes are used. It is used to transmit a variety of individual signals (read, write, interrupt, acknowledge, and so forth) necessary to control and coordinate the operations of the computer. We will work on your suggestions as soon as possible. Are you looking for Class 11 Computer Science Notes for Federal Board (FBISE)? (Do yourself), 8. 1 bit = 0 or 1 1 Byte = 8 bit 1 Nibble = 4 bit 1 Kilo Byte = 1024 Byte= 210 Byte 1 Mega Byte = 1024 KB= 210 KB 1 Gega Byte = 1024 MB= 210 MB 1 Tera Byte = 1024 GB= 210 GB 1 Peta Byte =1024 TB= 210 TB 1 Exa Byte =1024 PB= 210 PB 1 Zetta Byte = 1024 EB= 210 EB 1 Yotta Byte = 1024 ZB= 210 ZB. 14. It is a positional value system, where each binary digit has its own value or weight expressed as power of 2. Infrared Port: An IR port is a port which sends and receives infrared signals from other devices. (Given in the table above), Convert from hexadecimal to octal and binary: In this conversion write the binary of specific digit. Why? ii. myCBSEguide | CBSE Papers & NCERT Solutions. Firmware is a combination of software and hardware. SRAM is not worthwhile for desktop system memory, where DRAM dominates, but is used for their cache memories. Examples of non-volatile memory are flash memory and ROM/PROM/EPROM/EEPROM memory (used for firmware such as boot programs). The fourth Generation(1972- present): LSI & VLSI were used in this generation. PS/2 port, 13. We will also introduce a mobile app for viewing all the notes on mobile. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous reading of data), it does not have to do the more time-consuming reading of data from larger memory. A hybrid computer system setup offers a cost effective method of performing complex simulations. SRAM retains its contents as long as the power is connected and is easy to interface to but uses six transistors per bit. 8086 processor 32 bit Microprocessor: It indicates the width of the registers. How to Create Worksheets using Test Generator? They required only 1/10 of power required by tubes. Sample Paper all are made available through the best app for CBSE students and myCBSEguide website. Contains solved exercises, review questions, MCQs, important board questions and chapter overview. Lesson tags: basic computer organization, brief introduction to functions of OS, central processing unit and its components, components of a computer system, components of a mobile phone, different functions of operating system, need for an operating system, types of cd, types of dvd, types of memory, types of software, types of storage devices Types of Operating System: • Real-time Operating System: It is a multitasking operating system that aims at executing real-time applications. © 2020 ClassNotes, Inc. | All Rights Reserved, If you find any mistake or any problem with the notes, please send us an email at. Bluetooth: Bluetooth uses short-range radio frequencies to transmit information from fixed and mobile devices. 11th Class Computer Science Notes (First Year) New Course 2017-18 Onwards (FBISE) Computer Science Notes 11th ClaSS (nEW cOURSE) Ch # 1 - Overview of Computer System. The term primary memory is used for the information in physical systems which are fast (i.e. Are you looking for Class 11 Computer Science Notes for Federal Board (FBISE)? Compiler or Interpreter. CBSE Class 11 Computer Science Revision Notes Chapter-1 Computer Fundamentals class 11 Notes Computer Science. System software: a) Operating System Software DOS, Windows XP, Windows Vista, Unix/Linux, MAC/OS X etc. These numerals are 0 to 9. System software is designed to provide a platform to run application software and operate the computer hardware. Input Devices: Those devices which help to enter data into computer system. Typically on older PCs, a modem, mouse, or keyboard would be connected via serial ports. Other uses of supercomputers include animated graphics, fluid dynamic calculations, nuclear energy research, and petroleum exploration.
2020 computer system class 11 notes