Computer Hardware, Software and Memory
Computer Hardware and Software
Computer system is generally divided into two parts: Hardware and Software.
1. Hardware: - Hardware refers to the physical parts of the computer like CPU, Monitor, Printer etc. which can be touched and felt.
2. Software: - Software is a group of programs which make computers work. The software tells the computer what to do and how to do.
The Software are further divided into three major groups.
a) Application Software: - It is a group of programs designed to solve particular problem e.g. word processing, spreadsheet, multimedia and presentation, database etc.
b) System Software: - It is a set of programs which helps user to communicate with hardware e.g. Operating System, Assembler, Compiler, Interpreter etc.
c) Utility Software: - It provides services for developing and debugging computer programs. e.g. Norton utilities, PC Tools etc.
Computer Memory
The memory is the storage space in the computer system. It is the capacity of computer to store data and information. There are two types of memory: Primary memory and Secondary memory.
Primary memory
It is also called Internal or Main Memory. RAM and ROM are the type of Primary memory.
RAM: - Ram stands for Random Access Memory. It is the most commonly used memory. But, it is volatile memory. So, it needs regular supply of power to hold its content.
ROM: - ROM stands for Read Only Memory. It is only for reading. It is the permanent memory. So, it holds the data even after the computer is switched off.
Secondary memory
The secondary memory is used to store data and information for later use. They are also called Mass Storage or Auxiliary Memory because they can store huge data and information for longer duration of time.
Secondary memory is installed in the computer from magnetic disks such as Hard disk, Floppy disk etc., Optical Disks such as CD-ROM, DVDs, etc. or electronic storage device like pen drive.
Computer Hardware Information - Computers have two main parts:- Software and hardware. Software is made up of code which translates into a series of instructions that tell the computer what to do. Computer hardware refers to physical and tangible parts of the computer that are visible and can be touched.
ReplyDeleteAll computer systems ranging from desktop and laptop to smartphones have the following computer hardware in all their system:- primary storage or RAM, secondary storage (ROM), input devices (keyboard, mouse, touchscreen, camera, and microphones), and output device (screen and printers). For more visit: computermobile.info