Coding

STORAGE DEVICES This type of storage devices can gather information without loosing them over time like with volatile devices as Ram There are different types: OPTICAL:  Such as CD-ROM or DVD , they are cheap and portable , although they are fragile and have a s mall storage capacity , 700 mb in the case of the CD and 4.7 GB in the DVD. Usually people use the optical storage devices for films, music or for software however, now a days they are not popular. SOLID STATE:  A perfect example is the flash drive , extremely common in these times. Flash drives use technologies similar to the Ram Memory but not being volatile. They are small, fast and portable . In addition, they have a big storage capacity , up to 2 Tb. Although, not everything is positive, flash drives are fragile and easy to loose, as you need to carry it with you. In our society, flash drives have almost replaced totally the optical devices. MAGNETIC: Hard disks are ...

THE PROCESSOR The function of the processor The processor is a chip that controls all the computer instructions by interpreting them as  a binary code.  The control circuitry pulls data in via the various  ports, directs it along data buses,stores it in  the memories and performs the calculations Its roles Performing calculations: the calculations are made by components in the cpu using binary code. Data manipulation: The cpu can receive data from input devices, store the instructions and send data back to output devices Decision making Performance features Clock speed: Is the speed at which the microprocessor executes instructions  Cores: It is the processing unit.   For example, having two cores, multiply the processing power of the cpu by two.   Cache  Is a small and fast memory, situated close to the cpu to accelerate the processor performance by storing copies of the most fre...