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Which is not part of the 4 operations that make up the info processing cycle?
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Where do computers process data?
The part of the computer that processes data is called the processor or processing unit. Older computers had a Central Processing Unit (CPU) . Modern machines often have more than one processing unit. The processor fetches and decodes the instructions that make up the program as well as doing the arithmetical operations.
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What portion of the central processing unit will perform operations that return numbers values or a value of?
Asked in Computers
Give an example for explaining the computer IPO cycle?
IPO cycle stands for Input-Process-Output cycle For example, if you want to make a copy of an important paper, you first scan the paper (inputting the data), make adjustments if you want to (processing the data), and the print it (outputting the data). Here, the scanner is the input unit through which you feed the data to the computer. The CPU is the processing unit which applies the changes you make to the data, that is, it processes the data. The printer is the output unit through which you obtain the result of the data you earlier fed to the computer.
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What features make a computer an excellent tool for data processing?
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Asked in Computers
What are the five basic operations performed by a computer?
All computer systems perform the following five basic operations for converting raw input data into useful information and presenting it to user: 1. Inputting: Process of entering data and instructions into a computer system. 2. Storing: Saving data and instructions to make them readily available for initial or additional processing as and when required. 3. Processing: Performing arithmetic operations ( add, subtract, multiply, divide, etc.), or logical operations ( comparisons like equal to, less than, greater than, etc.) on data to convert them into useful information. 4. Outputting: Process of producing useful information or results for a user, such as printed report or visual display. 5. Controlling: Directing the manner and sequence in which the above operations are performed.
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Asked in Computers
With the block diagram explain the organization of computers?
A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately. A computer as shown in Fig. performs basically five major computer operations or functions irrespective of their size and make. These are 1) it accepts data or instructions by way of input, 2) it stores data, 3) it can process data as required by the user, 4) it gives results in the form of output, and 5) it controls all operations inside a computer. We discuss below each of these Computer operations Fig : Basic computer Operations 1. Input: This is the process of entering data and programs in to the computer system. You should know that computer is an electronic machine like any other machine which takes as inputs raw data and performs some processing giving out processed data. Therefore, the input unit takes data from us to the computer in an organized manner for processing. 2. Storage: The process of saving data and instructions permanently is known as storage. Data has to be fed into the system before the actual processing starts. It is because the processing speed of Central Processing Unit (CPU) is so fast that the data has to be provided to CPU with the same speed. Therefore the data is first stored in the storage unit for faster access and processing. This storage unit or the primary storage of the computer system is designed to do the above functionality. It provides space for storing data and instructions. The storage unit performs the following major functions: • All data and instructions are stored here before and after processing. • Intermediate results of processing are also stored here. 3. Processing: The task of performing operations like arithmetic and logical operations is called processing. The Central Processing Unit (CPU) takes data and instructions from the storage unit and makes all sorts of calculations based on the instructions given and the type of data provided. It is then sent back to the storage unit. 4. Output: This is the process of producing results from the data for getting useful information. Similarly the output produced by the computer after processing must also be kept somewhere inside the computer before being given to you in human readable form. Again the output is also stored inside the computer for further processing. 5. Control: The manner how instructions are executed and the above operations are performed. Controlling of all operations like input, processing and output are performed by control unit. It takes care of step by step processing of all operations inside the computer. FUNCTIONAL UNITS In order to carry out the operations mentioned in the previous section the computer allocates the task between its various functional units. The computer system is divided into three separate units for its operation. They are 1) arithmetic logical unit 2) control unit. 3) central processing unit. Arithmetic Logical Unit (ALU) Logical Unit Logical Unit :After you enter data through the input device it is stored in the primary storage unit. The actual processing of the data and instruction are performed by Arithmetic Logical Unit. The major operations performed by the ALU are addition, subtraction, multiplication, division, logic and comparison. Data is transferred to ALU from storage unit when required. After processing the output is returned back to storage unit for further processing or getting stored. Control Unit (CU) The next component of computer is the Control Unit, which acts like the supervisor seeing that things are done in proper fashion. Control Unit is responsible for co ordinating various operations using time signal. The control unit determines the sequence in which computer programs and instructions are executed. Things like processing of programs stored in the main memory, interpretation of the instructions and issuing of signals for other units of the computer to execute them. It also acts as a switch board operator when several users access the computer simultaneously. Thereby it coordinates the activities of computer's peripheral equipment as they perform the input and output. Central Processing Unit (CPU) The ALU and the CU of a computer system are jointly known as the central processing unit. You may call CPU as the brain of any computer system. It is just like brain that takes all major decisions, makes all sorts of calculations and directs different parts of the computer functions by activating and controlling the operations.
What are the problem of manual data processing.comparing to electronic data processing?
Manaul data processing could make mistakes, whereas electronic data processing will have a 1% chance to make a mistake. and example for this would be: on a spreadsheet you have 1000 employees, each with different wages because of different roles, and you need to calculate a grand total. which type of processing is going to be faster and more accurate? electronic data processing of course.
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How importance of processing drinks juices and coffee?