A computer software are of two types. They are :
1. System software
2. Application software
Systems software includes the operating system and all the utilities that enable the computer to function.
Application software includes programs that do real work for users.
Hence, Operating system is an example of system software.
RAM storage capacity is measured in bytes, kilo bytes, mega bytes, giga bytes,...
DPI [Dots Per Inch] is a measurement of output quality of printer resolution. It represents number of ink dots the printer can place in an area of one square inch. The lesser the DPI the less sharper the image and vice versa.
Therefore, a printer that may have 400 DPI, a printer that can print 400 x 400 per square inch or 1,60,000 dots per inch.
Million Instructions Per Second is a method of measuring the raw speed of a computer's processor. MIPS measures roughly the number of machine instructions that a computer can execute in one second.
On the right corner of the mother board RAM is located in a computer.
Protecting data by copying it from the original source to a different destination is called as Backup. When an original data is lossed, to restore the information by copying the data from the source to other destination is called as Backup or Data backup.
Second generation computers were developed during 1956 - 1963.
A computer has a CPU which is called as Central Processing UNit or a Processor builton the mother board. It has many components like control unit and Arithmetic and logical unit.
The Arithmetic and logical unit of the CPU performs the arithmetic operations or mathematical calculations.
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