Secondary Storage

Some examples of Magnetic Hard Disks are Samsung/Seagate 1TB 2.5 inch 5400RPM SATA II Hard Disk Drive      

There are three different type of Secondary Storage, Magnetic Hard Disks, which are the most common type of secondary storage, Optical Disks, for example CDs and DVDs, and Flash Memory, which is the electronically alterable Read Only Memory, which costs £49.99, Generic Hard Disk Drive 250GB SATA II which costs £25.99.

Binary Logic

 Binary Logic

 

Computer system use the BINARY arithmetic system which basically is a number system that uses only 0 and 1 to represent all numbers.

 

The digital computer uses an arrangement of tiny electronic switches (transistors) called LOGIC GATES connected together, which are used to manipulate the signals within the processor.

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