COMPUTER BASICS
MEMORY-HARDWARE-SOFTWARE
1. What is hardware?
2. What is input devices?
3. What is output devices?
4. What is processor?
5. What is a storage device? and Other Hardware components?
6. General trends .
RATIONALE
The hardware compnests are the tangible components of the computer. A knowledge of the tangible components will enable you to understand how the parts relate to one another. It will also help you troubleshoot when you meet problems in operating computers.
Hardware
The physical part of the computer is known as Hardware. Means physical components of the computer system. Those that we can touch and having weight. In another words the parts of the computer by which a computer is made. In general Hardware is categorized according to which of the five basic computer operation it performs:
Input devices- Processors and memory- Output devices-Secondary storage devices.-Communications/networking devices.
Input Devices
These devices can be used to enter data to computer like keyboards, scanners,light pen, Bar code readers, finger print sensors, touch lcd,mouse,joystick,trackball and other pointing devices, These devices converts data into specific form e.g. Text, Images, drawings, into a form that a computer can understand and use.
Out put devices
These type of hardware is used after the processing of data in the main system, also we can say that parts of the computer that can be used for output data are called output devices.The output of computer processing is the usable information that the user requires. This information can be presented to the user in a variety of forms, depending on the out put device. Out put devices are, Monitor, LCD, Printers,Speakers,Woofers,and etc.
Processors
CPU: Central Processing Unit: This is the electronic circuitry used in computers that carries out the instruction of a computer programme by performing the basic arithmetic
,logical,control and input output operations specified by the instructions. Modern CPU's are microprocessors
Memory
The computer's work space where application instructions and data are held during operation is called memory, also known as main memory, primary storage or RAM(Random access Memory). The capacity of these memory is very important and The speed of a computer depends on RAM. More the RAM more will be the speed. This bigger memory means bigger work space. Whatever data is held in the RAM is erased when the computer is reset or the computer is turned off. The Random Access Memory(RAM) , The amount of memory available determines the kind of software that can be run and how much data can be manipulated. The available RAM at Present is 512MB,1024MB(1GB), 2GB,16GB and maybe more.
The another type of memory is ROM, Aside from the RAM , the computer also has a ROM(Read Only Memory) which is used to store the boot program and other low-level information that enables the computer to start up and to recognize its hardware parts.
Storage
That type of hardware that retain data for future use or for current time is called a Storage deive. These devices may be found inside or outside the computer. There are different typed of storage devices are available in the market. But the popular devices are Optical (CD,DVD ROM) and Magnetic(Tapes,Disk). Beside these external drives,memory cards,pendrives are the example of storage devices. Any way, also this can be said that the type of hardware that hold and delet data according to user control and can access any time even when computer is off/on the data will accessible.
Communication Devices
Communications hardware, also called networking devices, is used to extend the processing capabilities of a computer system by providing a means of transferring data and applications from one computer system to another.. Communication hardware is used to link to existing comunication networks like the internet that allow electronic transfer of information any time, anywhere
Thank You .
MEMORY-HARDWARE-SOFTWARE
1. What is hardware?
2. What is input devices?
3. What is output devices?
4. What is processor?
5. What is a storage device? and Other Hardware components?
6. General trends .
RATIONALE
The hardware compnests are the tangible components of the computer. A knowledge of the tangible components will enable you to understand how the parts relate to one another. It will also help you troubleshoot when you meet problems in operating computers.
Hardware
The physical part of the computer is known as Hardware. Means physical components of the computer system. Those that we can touch and having weight. In another words the parts of the computer by which a computer is made. In general Hardware is categorized according to which of the five basic computer operation it performs:
Input devices- Processors and memory- Output devices-Secondary storage devices.-Communications/networking devices.
Input Devices
These devices can be used to enter data to computer like keyboards, scanners,light pen, Bar code readers, finger print sensors, touch lcd,mouse,joystick,trackball and other pointing devices, These devices converts data into specific form e.g. Text, Images, drawings, into a form that a computer can understand and use.
Out put devices
These type of hardware is used after the processing of data in the main system, also we can say that parts of the computer that can be used for output data are called output devices.The output of computer processing is the usable information that the user requires. This information can be presented to the user in a variety of forms, depending on the out put device. Out put devices are, Monitor, LCD, Printers,Speakers,Woofers,and etc.
Processors
CPU: Central Processing Unit: This is the electronic circuitry used in computers that carries out the instruction of a computer programme by performing the basic arithmetic
,logical,control and input output operations specified by the instructions. Modern CPU's are microprocessors
Memory
The computer's work space where application instructions and data are held during operation is called memory, also known as main memory, primary storage or RAM(Random access Memory). The capacity of these memory is very important and The speed of a computer depends on RAM. More the RAM more will be the speed. This bigger memory means bigger work space. Whatever data is held in the RAM is erased when the computer is reset or the computer is turned off. The Random Access Memory(RAM) , The amount of memory available determines the kind of software that can be run and how much data can be manipulated. The available RAM at Present is 512MB,1024MB(1GB), 2GB,16GB and maybe more.
The another type of memory is ROM, Aside from the RAM , the computer also has a ROM(Read Only Memory) which is used to store the boot program and other low-level information that enables the computer to start up and to recognize its hardware parts.
Storage
That type of hardware that retain data for future use or for current time is called a Storage deive. These devices may be found inside or outside the computer. There are different typed of storage devices are available in the market. But the popular devices are Optical (CD,DVD ROM) and Magnetic(Tapes,Disk). Beside these external drives,memory cards,pendrives are the example of storage devices. Any way, also this can be said that the type of hardware that hold and delet data according to user control and can access any time even when computer is off/on the data will accessible.
Communication Devices
Communications hardware, also called networking devices, is used to extend the processing capabilities of a computer system by providing a means of transferring data and applications from one computer system to another.. Communication hardware is used to link to existing comunication networks like the internet that allow electronic transfer of information any time, anywhere
Thank You .
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