The basic components of a computer system are the input unit, output unit, memory, and processor. The input unit includes devices like keyboards and mice that allow data to be entered. The output unit displays or prints the results and includes monitors and printers. Memory temporarily stores data and programs during use and permanently stores them when not in use, including RAM, ROM, hard disks, and floppy disks. The processor, made up of the ALU and control unit, is the brain that performs computations and controls the system.
A computer is a machine that can be programmed to manipulate symbols. Its principal characteristics are: It responds to a specific set of instructions in a well-defined manner. It can execute a prerecorded list of instructions (a program). It can quickly store and retrieve large amounts of data.
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A computer is a machine that can be programmed to manipulate symbols. Its principal characteristics are: It responds to a specific set of instructions in a well-defined manner. It can execute a prerecorded list of instructions (a program). It can quickly store and retrieve large amounts of data.
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Watch my videos on snack here: --> --> http://sck.io/x-B1f0Iy
@ Kindly Follow my Instagram Page to discuss about your mental health problems-
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@ Appreciate my work:
-----> behance.net/burhanahmed1
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The parts of a computer slideshow for grades 3-4. Includes a quiz and activity. The activity is supposed to have the students act out the parts of a computer.
*ROM is READ ONLY MEMORY - I had a typo...sorry!
Learn to identify parts of a computer, hardware and software, operate the mouse and keyboard and become familiar with the MS Windows X/P Operating System.
Basics of the Computer System.
Hi Everyone, here in this presentation you are about to get knowledge of 'What actually is a Computer System? Different types of computer, Computer Hardware, Software and a lot more with animated video..
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BASIC OF COMPUTER.pptx regarding detailsMuskanMukhi1
This is basically a presentation of IT regarding the topic Basics of a Computer. So anybody can use it for Information Technology. A PowerPoint presentation on the basics of computers typically covers fundamental concepts such as hardware components (CPU, memory, storage devices), software (operating systems, applications), input and output devices (keyboard, mouse, monitor), and basic computer operations (booting, file management, software installation). It may also touch upon topics like computer networks, internet basics, and computer security. The presentation aims to provide a foundational understanding of computers to beginners, highlighting their essential components and functions in a clear and concise manner.The PowerPoint presentation on the basics of computers provides a comprehensive overview suitable for beginners. It covers fundamental concepts including hardware components like CPU, memory, and storage devices, alongside software such as operating systems and applications. Additionally, it explores input and output devices like keyboards, mice, and monitors, and delves into basic computer operations such as booting, file management, and software installation. The presentation also touches upon computer networks, internet basics, and computer security, offering a foundational understanding of these topics. With clear explanations and visual aids, the presentation aims to equip beginners with essential knowledge about computers and their functionalities in a concise and accessible manner.
It covers hardware components like the CPU, memory, and storage devices, as well as software including operating systems and applications. Furthermore, it explains input and output devices such as keyboards, mice, and monitors, and discusses basic computer operations like booting and file management. Additionally, the presentation touches on computer networks, internet fundamentals, and computer security, providing a well-rounded understanding of key aspects of computing. With clear explanations and visual aids, the presentation aims to demystify computers and empower beginners to navigate the digital world with confidence.
Parts & features of Computer - BscNsg -1.pptxViniShine
This PPT is related to Health Informatics for BSc NURSING First year as per revised syllabus. Hope there are no contents related to this subject as it is a new introduced subject to the nursing course. I 'm Vineetha Abraham Assit.Lecturer in nursing from Mangalore.
Computer Introduction-Lecture02 for applied scince college students, Seiyun University , yemen 2023-2024 Academic year. لطلاب كلية العلوم التطبيقية بجامعة سيئون
مقدمة في علوم الحاسوب المحاضرة الثانية
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3. 1. Input Unit
Input is any data or instructions entered into the
memory of a computer
Any hardware component allows user to enter data and
instructions in to a computer.
4. Keyboard
Used to enter
information into the
computer and for giving
commands.
A standard computer
keyboard is called a
QWERTY keyboard
5. Ball Mouse
An input device operated
by rolling its ball across a
flat surface. The mouse is
used to control the on-
screen pointer by pointing
and clicking, double-
clicking, or dragging objects
on the screen.
6. Optical Mouse
It is an advanced computer pointing
device.
It uses Light-Emitting Diode(LED) in
place of the traditional mouse ball.
Movement is detected by sensing changes
in reflected light.
7. 2. Output Unit
The job of output unit is just the reverse of that of an
Input Unit.
It supplies information and results of computation to
the outside world.
Monitor and Printer are the most common
Output Devices which are used.
8. Monitor
A display screen is used
to provide “output” to
the user. It is where you
can view the
information you are
working on.
9. Printer
An output device that
produces a hard of the
information.
Information to the user
is in printed form.
10. 3. Memory / Storage
Devices
All computer need to store data.
Data is stored temporally while program is running
– Main Memory.
To store data for long-term, to preserve programs and data
while not in use – Backing Storage.
Primary Memory and Secondary Memory
11. Primary Memory
Temporary area for holding data.
To store the program currently being executed
To hold data produced while the programe is running.
Primary Memory are of two types
1. RAM &
2. ROM
12. 1.RAM(Random Access Memory)
Major portion of the Primary Memory
Memory that is used by the program in execution
If the computer gets turned off, RAM will lose all
the data.
Static RAM & Dynamic RAM
13. Static RAM
The memory retains as long as power remains
applied.
Uses Flip Flop circuitory.
Is more faster.
14. Dynamic RAM
Need continues Refreshing in order to
maintain the data.
It uses transistors and capacitors in circuits
Slow and consumes more power
15. 2.ROM (Read Only Memory)
Memory which we can only read but cannot
write on.
Non-volatile.
Used to store some firmware programs.
PROM – Programmable Read Only Memory
EPROM – Erasable and Programmable read Only Memory.
EEPROM – Electrically Erasable and Programmable read Only Memory.
18. Hard Disk
Access to data is far faster than
access to data in floppy disks.
Read/Write Head is positioned close
to the disk.
Disk is attached to a spindle.
Spindle is rotated by a motor.
Speed of disk depends on the speed
of motor.
19. Floppy Disk
• Consists of a plastic disk coated with iron oxide.
• Disk access mechanism is arranged as a hardware unit
called disk drive.
• Drive contains motor, Read/Write Head etc.
• Head comes in contact with the disk through the data
access area.
• Disk is rotated to pass the sectors through the head.
20. Optical disk
It is an electronic storage medium.
Read operation is done using low powered
laser beam.
A laser read the dots and then the data is
converted to an electrical signal .
The output form of this devise is in audio
and visual format
CD-ROM – Compact Disk-Read Only Memory.
CD – R – Compact Disk – Recordable.
CD-RW – Compact Disk – Rewritable
DVD – ROM – Digital Versatile Disk – Read Only Memory
DVD – RAM - Digital Versatile Disk – Random Access Memory
21. 4.Processor Or CPU
The CU and ALU are jointly known as
CPU.
Brain of the computer.
Perform data processing operations.
Control the working of the entire system.
Arithmetic and Logic Unit (ALU) & Control Unit(CU)
22. Arithmetic and Logic Unit ( ALU )
Place where the actual execution of the instructions take place
during the processing operations.
All calculations are performed here.
It consists of circuits that perform arithmetic as well as logical
operations.
23. Control Unit
It act as a central nervous system for the
other components of the computer.
It manages and coordinates the entire
computer system.
It get information from the main memory
It issues signal to control every other units
of the system.