Sumita Arora Class 11 Solutions
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Computer Overview (Sumita Arora) Textbook Solutions 7th Edn credits: Q1: Storage of 1KB means the following number of bytes: (a) 1000 (b) 964 (c) 1024 (d) 1064 Answer: (c) 1024 bytes Q2: One Megabyte is equivalent to (a) 2 10 bytes (b) 2 20 bytes (c) 2 30bytes (d) none of these Answer: (b) 2 20 bytes (1 MB = 1024 KB = 2 10 KB = 2 10× 2 10 bytes = 2 20 bytes) Q3:What do you understand by IPO cycle? Answer: It stands of Input-Process-Output cycle. A computer follows IPO cycle i.e. It takes data as input, processes it and takes out information as an output. Q4: What are the functional components of a digital computer?
Computer Science With C++ - By Sumita Arora Solutions for Class XI Drawbacks of SJF Informatics Practices - By Sumita Arora Solutions for Class XI Difference between a Microprocessor and a Microcomputer Basic Architecture of Computer along with the Functioning of each of its Subunits Useful Features of Word Processors.
Answer: The functional components of a digital computer are: • Input Unit • Central Processing Unit (CPU) consisting of ALU (Arithmetic Logic Unit) and CU (Control Unit) • Output Unit • Storage (Memory) Q5: What are the components of CPU? What is its role?
Aashiq miss pooja mp3 download. What is the function of control unit of CPU? Answer: The CPU is the brain of the computer system.
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It has three main components: • Arithmetic and Logic Unit (ALU) • Control Unit • Registers The arithmetic and logic unit (ALU) is the part of CPU where actual computations (arithmetic or logical) take place. The control unit directs and controls the activities of the computer system. While performing these operations the ALU takes data from the temporary storage area inside the CPU named registers. Q6: What is the highest memory unit known so far? Answer: Geop Byte Q7: What role does input play in a computer? Answer: Roles an input unit plays in a computer are: • acts as an interface between user and the CPU • accepts data and instructions to feed into CPU • examples are keyboard, mouse, light pen, touch screen etc.