Relationship between Hardware and Software
● Hardware and software are mutually dependent on each other. Both of them must work together to make a computer produce a useful output. ● Software cannot be utilized without supporting hardware.…
Computer – Hardware
Hardware represents the physical and tangible components of a computer i.e. the components that can be seen and touched. Examples of Hardware are following: ● Input devices -- keyboard, mouse etc. ● Output…
Computer – Ports
What is a Port? A port: ● is a physical docking point using which an external device can be connected to the computer. ● can also be programmatic docking point through which…
Computer – Memory Units
Memory unit is: ● the amount of data that can be stored in the storage unit. ● that in which storage capacity is expressed in terms of Bytes. Following are the main…
Computer – Motherboard
The motherboard serves as a single platform to connect all of the parts of a computer together. A motherboard connects CPU, memory, hard drives, optical drives, video card, sound card,…
Computer – Read Only Memory
ROM stands for Read Only Memory. The memory from which we can only read but cannot write on it. This type of memory is non-volatile. The information is stored permanently…
Dynamic RAM (DRAM)
DRAM, unlike SRAM, must be continually refreshed in order to maintain the data. This is done by placing the memory on a refresh circuit that rewrites the data several hundred times per…
Static RAM (SRAM)
The word static indicates that the memory retains its contents as long as power is being supplied. However, data is lost when the power gets down due to volatile nature. SRAM chips…
Computer – Random Access Memory
RAM(Random Access Memory) is the internal memory of the CPU for storing data, program and program result. It is read/write memory which stores data until the machine is working. As…
Secondary Memory
This type of memory is also known as external memory or non-volatile. It is slower than main memory. These are used for storing data/Information permanently. CPU directly does not access…
