EXCEL ENGINEERING COLLEGE
(Autonomous)
Approved by AICTE, New Delhi & Affiliated to Anna University, Chennai
Accredited by NBA, NAAC with “A+” and Recognised by UGC (2f &12B)
KOMARAPALAYAM – 637303.
Department of Computer Science and Engineering
20CS102 - Problem Solving using Python
Unit_I
1. Define Computers.
Computer is a electronic device, which automatically accepts and store input data,
processes them
Produces results based on the instruction given.
2. Define Hardware and Software
Hardware refers to the physical and visible components of the system such as a monitor, CPU,
keyboard and mouse.
Software refers to a set of instructions which enable the hardware to perform a specific set of
tasks such as Ms-Word, MS-Excel, MS-Powerpoint etc.,
3. Identify Data and Information.
Data - Data is the fact or raw material for the information processing.
Information – The processed data is called information.
4. List the basic operations of Computer.
It accepts data or instructions by way of input. t stores data.
It can process data as required by the user. It gives results in the form of output.
5. Define Computer Software.
Software contains set of programs. Program contains set of data and instruction which
is used perform particular task.
Two types
1. System Software 2. Application Software
6. List out the flowchart symbols.
Start & Stop
Process
Input & Output
, Decision making
Flowlines
7. Mention Application Softwares.
Payroll systems, Inventory Control
Word Processor, Spreadsheet
8. Identify the characteristics of computers
Speed, Accuracy
Automation, Endurance and Versatility
9. List examples for system software.
Operating Systems, Compiler
Loader, Linker, Interpreter
10. List out the components of the computer systems.
Basic components of the computer system are
Input Unit, Control Unit, Arithmetic & Logic Unit
Memory Unit and Output Unit.
11. Define Algorithm
Algorithm is step by step process to solve particular problem
It is written in simple English statement
12. Label ALU and its function.
ALU - Arithmetic Logic Unit, the part of a computer that performs all arithmetic
computations, such as addition, subtraction, multiplication and division
All logical operations such as comparison operations.
13. Tell about CPU and its function
The CPU (central processing unit) is the Brain of a computer controls the
interpretation and execution of instructions.
Generally, the CPU consists of ALU, Memory and Control unit.
14. Define Instruction.
An instruction is a basic command.
For example, a computer's instruction set is the list of all the basic
commands in the computer's machine language.
15. Define Memory and List its types
Computer memory refers to devices that are used to store data or
programs (sequences of instructions) on a temporary or permanent basis
for use in an electronic digital computer.
Primary Memory
(Autonomous)
Approved by AICTE, New Delhi & Affiliated to Anna University, Chennai
Accredited by NBA, NAAC with “A+” and Recognised by UGC (2f &12B)
KOMARAPALAYAM – 637303.
Department of Computer Science and Engineering
20CS102 - Problem Solving using Python
Unit_I
1. Define Computers.
Computer is a electronic device, which automatically accepts and store input data,
processes them
Produces results based on the instruction given.
2. Define Hardware and Software
Hardware refers to the physical and visible components of the system such as a monitor, CPU,
keyboard and mouse.
Software refers to a set of instructions which enable the hardware to perform a specific set of
tasks such as Ms-Word, MS-Excel, MS-Powerpoint etc.,
3. Identify Data and Information.
Data - Data is the fact or raw material for the information processing.
Information – The processed data is called information.
4. List the basic operations of Computer.
It accepts data or instructions by way of input. t stores data.
It can process data as required by the user. It gives results in the form of output.
5. Define Computer Software.
Software contains set of programs. Program contains set of data and instruction which
is used perform particular task.
Two types
1. System Software 2. Application Software
6. List out the flowchart symbols.
Start & Stop
Process
Input & Output
, Decision making
Flowlines
7. Mention Application Softwares.
Payroll systems, Inventory Control
Word Processor, Spreadsheet
8. Identify the characteristics of computers
Speed, Accuracy
Automation, Endurance and Versatility
9. List examples for system software.
Operating Systems, Compiler
Loader, Linker, Interpreter
10. List out the components of the computer systems.
Basic components of the computer system are
Input Unit, Control Unit, Arithmetic & Logic Unit
Memory Unit and Output Unit.
11. Define Algorithm
Algorithm is step by step process to solve particular problem
It is written in simple English statement
12. Label ALU and its function.
ALU - Arithmetic Logic Unit, the part of a computer that performs all arithmetic
computations, such as addition, subtraction, multiplication and division
All logical operations such as comparison operations.
13. Tell about CPU and its function
The CPU (central processing unit) is the Brain of a computer controls the
interpretation and execution of instructions.
Generally, the CPU consists of ALU, Memory and Control unit.
14. Define Instruction.
An instruction is a basic command.
For example, a computer's instruction set is the list of all the basic
commands in the computer's machine language.
15. Define Memory and List its types
Computer memory refers to devices that are used to store data or
programs (sequences of instructions) on a temporary or permanent basis
for use in an electronic digital computer.
Primary Memory
