Computer Studies (Primary Classes)

The Processing Device

The Processor Process: – Process is the operation of data or information as per given instruction. It is totally internal process of the computer system. CPU (Central processing Unit) is the main processing device of the computer The main unit inside the computer is the CPU. This unit is responsible for all events inside the computer. It controls all internal and external devices, performs arithmetic and logic operations. The CPU (Central Processing Unit) is the device that interprets and executes instructions. The operations, a microprocessor performs are called the instruction set of this processor. Processors differ from one to another by the instruction set. If the same program can run on two different computer brands they are set to be compatible. Programs written for IBM compatible computers will not run on apple computers because these two architectures are not compatible. Mainframes and early mini computers contained circuit… Read More »The Processing Device

Computer as an IPO System

A computer is an electronic machine that works under the instructions given by us. In order to perform any work, a computer follows three steps: Input – Process – Output. It can accept data (Input), manipulate the data according to specified rules (Process) and produce results as information (Output). To put it more clearly: 1. The computer accepts the data that we feed into it through an input device like the keyboard or mouse. The computer processes the data into information through a processor called Central Processing Unit (CPU). 3. The computer displays the information through an output device like the monitor or the printer. Input Devices Input: – Input is the raw data entered into a computer from the input devices. It is the collection of numbers, letters, images, etc. Keyboard, Mouse, scanner, webcam, etc. is some examples of the input devices. Devices which transfer data,… Read More »Computer as an IPO System

SOURCES OF INFORMATION

Information can come from virtually anywhere — media, blogs, personal experiences, books, journal and magazine articles, expert opinions, encyclopedias, and web pages — and the type of information you need will change depending on the question you are trying to answer. Look at the following sources of information. Books Encyclopedias Magazines Databases Newspapers Library Catalog Internet Television Radio Computer. Strategies & Activities: Step :Teacher revises the previous topic. Step 2: Teacher introduces the new topic. Step3: Teacher explains the new topic. Step4: Teacher welcomes pupils’ questions. Step5: Teacher evaluates the pupils. Assessment & Evaluation: Define data State the sources of information Assignment: Define data State the sources of information See also INFORMATION Data TYPES OF BOOTING BOOTING BASIC COMPUTER CONCEPT

INFORMATION

MEANING OF INFORMATION Information is stimuli that have meaning in some context for its receiver. When information is entered into and stored in a computer, it is generally referred to as data. After processing (such as formatting and printing), output data can again be perceived as information TYPES OF INFORMATION Oral information Written information Electronic information ELECTRONIC INFORMATION SYSTEM: A system which stores information from internal and external sources to facilitate better decision making. The data is collated in a database and the user can access the files to glean better information as a basis for decision. The system may include fiscal, social, economic, scientific or technical data geared to support a firm’s operations Strategies & Activities: Step: Teacher revises the previous topic. Step 2: Teacher introduces the new topic. Step3: Teacher explains the new topic. Step4: Teacher welcomes pupils’ questions. Step5: Teacher evaluates the pupils. … Read More »INFORMATION

Data

Data is a raw fact that needs to be processed. it is called raw and unorganized facts. It is useless until it is processed and well organized. TYPES OF DATA 1 numerical data: These are mainly numbers such as 0,1,2,3,4,5,6,7,8,9 Alphabetical data: These are mainly letters A_Z and other words formed these letters e.g. father, mother, aunt, sister, friend etc. Alphanumeric data: Alphanumeric means numbers, alphabet and special characters. Examples 2004 General election Russia 2019 2019/2020 Academic session Strategies & Activities: Step: Teacher revises the previous topic. Step 2: Teacher introduces the new topic. Step3: Teacher explains the new topic. Step4: Teacher welcomes pupil’s questions. Step5: Teacher evaluates the pupils. Assessment & Evaluation: Define data State the type of data Assignment: Define data State the type of data. See also TYPES OF BOOTING BOOTING BASIC COMPUTER CONCEPT APPLICATION SOFTWARE ART OF INFORMATION PROCESSING

TYPES OF BOOTING

Cold Boot: when the user switches on a computer after it has been power off completely, Warm Boot: when the user restarts the computer. When the booting process takes place, it copies kernel and important instructions of an operating system from hard disk to main memory (RAM). The kernel is the most important part of the operating system that manages memory and devices, maintains computer clock, and starts applications. It assigns compute resources like devices, programs, data, and information also. The kernel also remains in memory permanently when the computer starts. Steps in the Booting Process Booting is a process of switching on the computer and starting the operating system. Six steps of the booting process are BIOS and Setup Program, The Power-On-Self-Test (POST), The Operating System Loads, System Configuration, System Utility Loads and Users Authentication. Booting process 1: BIOS and Setup Program 2: The Power-On-Self-Test (POST) 3:… Read More »TYPES OF BOOTING