Write a very short answer the following questions.
a.
Define the term "Computer"
Ans: A computer is
an electronic device that can receive, store, process, and output data, as well
as execute programs that automate specific tasks.
b.
What is 'Input"?
Ans: Input refers to
the data or information that is entered into a computer or any other electronic
device for processing. It can be in the form of text, numbers, images, audio,
or any other type of digital content.
c.
What are data?
Ans: Data refers to
any collection of facts, figures, or statistics that can be stored, processed,
and analyzed by a computer or any other electronic device.
d.
What is the working principle of the
computer?
Ans: The working
principle of a computer can be summarized in four basic steps: input,
processing, output, and storage.
e.
Why does a computer need programs?
Ans: A computer
needs programs to perform specific tasks or operations. Programs, also known as
software, are sets of instructions that tell the computer what to do.
f.
What is Random Access Memory?
Ans: Random Access
Memory (RAM) is a type of computer memory that stores data and instructions
temporarily while the computer is running.
g.
What are the types of internal memory?
Ans: There are two
types of internal memory: Volatile and non-volatile memory.
Write short answers to the following
questions.
a.
Write any two advantages and disadvantages
of the computer.
Ans: Two advantages
of computer are:
·
Computers are 100% accurate machine.
·
Computer is a versatile machine.
Two disadvantages of computer are:
·
It is expensive system so it is not
easily accessible for poor people.
·
Physical damage may occur at any time.
b.
Write about the computer hardware and
software?
Ans:
Computer hardware refers to the physical components of a computer system, such
as the central processing unit (CPU), memory, storage devices, input/output
devices, and peripheral devices. These components work together to execute
instructions and perform tasks.
Computer
software, on the other hand, refers to the programs, applications, and
operating systems that run on a computer. It includes the instructions and data
that enable the hardware to perform specific tasks and provide functionality to
the user.
c.
What is the computer memory? What is
the role of memory in a computer?
Ans: Computer memory
is the electronic storage space within a computer system where data and
instructions are stored temporarily or permanently. It allows the computer to
store, retrieve, and manipulate data during the execution of programs.
d.
What is hardware and software? Write
with an example.
Ans: computer hardware is the collection of
physical parts of the computer system.
this includes the computer case monitor keyboard and mouse. it also includes all the parts inside the
computer case soft as the hard disk drive motherboard video cards and other
devices.
computer software is a set of programs and
related documentation that tells the computer what to do and how to perform a
task. Ms-word, Adobe Photoshop, Microsoft Excel, MS Paint are the example of
computer software.
Write long answers to the following questions.
a.
Explain the working principle of the computer
with a clear diagram.
The working
principle of a computer revolves around the input-process-output cycle.
Input
Input involves
receiving data and instructions from input devices like keyboards, mice,
scanners, etc. This is the act of entering data and instructions into the
computer for processing.
Processing
Processing is
carried out by the CPU (Central Processing Unit), which executes instructions
and manipulates data according to the given input. It's responsible for tasks
such as calculations, comparisons, and data manipulation.
Output
Output occurs when
processed data is sent to output devices such as monitors, printers, or
speakers. These devices display or present the results of the processing in a
meaningful format that users can understand.
Storage
Data and
instructions are stored in various types of computer memory. The primary
storage, known as random access memory (RAM), holds the data and instructions
that are currently being processed by the CPU.
a.
Explain, why the
computer is the powerful working tool?
Ans: The computer is a powerful working tool due to its
ability to process information swiftly and accurately, performing complex tasks
that would be challenging for humans. It enhances efficiency and productivity
across various fields, from office work to scientific research. By automating
processes and reducing human errors, computers improve the quality of work and
help solve complex problems. Their versatility and speed make them
indispensable in today's interconnected world, shaping our lives in profound
ways.
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