booting is the initialization of a computerized system.
Cold booting: when the computer is started after having been switched off. While Warm booting: when the operating system alone is restarted (without being switched off) after a system crash or ‘freeze.’
A peripheral is an ancillary device used to put information into and get information out of the computer.”
computer system is a set of integrated devices that
input , output , process , and store data and information .
1 aii .
1 . Processor e . g intel
2 . Main memory e . g ROM
3 . Input devices e . g keyboard
4 . Output devices e . g speaker
1 . Classifying
2 . Editing
1 bii .
I EDSAC ( Electronic Delay Storage Automatic Calculator )
II . EDVAC ( Electronic Discrete Variable Automatic Computer )
2 a )
register may hold an instruction , a storage address , or any kind of data, such as a bit sequence or individual characters
2 b )
i ) Memory Buffer Register
ii) Index Register
2 c )
i ) Register are used to quickly accept , store and transfer data and instructions that are being used immediately by the CPU
ii) Register is used for storing the results that are produced by the system
iii ) MDR is the register of a computer ‘ s control unit that contains the data to be stored in the computer storage or the data after a fetch from the computer storage
i)Register are storage locations internal to the processor
While memory or Ram is located external to the CPU
ii)General memory can be addressed on byte boundaries while Registes may not be able to access all the bytes in a register
iii)Register are temporary storage in the CPU that hold the data processor is currently working on
While Main memory(RAM)hold the program instructions and the data the program required
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