Primary Memory (Main Memory)
Primary memory holds only those data and instructions on which computer is currently working. It has limited capacity and data is lost when power is switched off. It is generally…
Cache Memory
Cache memory is a very high speed semiconductor memory which can speed up CPU. It acts as a buffer between the CPU and main memory. It is used to hold…
Computer – Memory
A memory is just like a human brain. It is used to store data and instructions. Computer memory is the storage space in computer where data is to be processed…
Inkjet Printers
Inkjet printers are non-impact character printers based on a relatively new technology. They print characters by spraying small drops of ink onto paper. Inkjet printers produce high quality output with…
Laser Printers
These are non-impact page printers. They use laser lights to produce the dots needed to form the characters to be printed on a page. ADVANTAGES ● Very high speed ● Very high…
Characteristics of Non-impact Printers
● Faster than impact printers. ● They are not noisy. ● High quality. ● Support many fonts and different character size.
Non-impact Printers
Non-impact printers print the characters without using ribbon. These printers print a complete page at a time so they are also called as Page Printers. These printers are of two…
Chain Printer
In this printer, chain of character sets are used so it is called Chain Printer. A standard character set may have 48, 64, or 96 characters. Advantages ● Character fonts can…
Drum Printer
This printer is like a drum in shape so it is called drum printer. The surface of drum is divided into number of tracks. Total tracks are equal to size…
Line Printers
Line printers are the printers which print one line at a time. These are of further two types ● Drum Printer ● Chain Printer
