Meniu Referate
Romana
Romana1
Romana2
Istorie
Istorie1
Geografie
Geografie1
Diverse
Drept
Economie
Filozofie
Fizica
Informatica
Biologie
Chimie
Italiana
Spaniola
Germana
Franceza
Engleza
Marketing
Matematica
Medicina
Psihologie
Astronomie
Stiinte Politice
Proiecte

Computers

...consists of eight bits, for example the number one is 0000 0001, number to 0000 000100 and number three 00000 0011 in the binary code.This combination of eight bits is called one byte.Ho a large computer orks- to enter gain access to the system , a code passord is required , hich can be typed into the computer on the keyboard.- A command is keyed in and the data is entered into the computer from a keyboard , tape or floppy discdisk input- The microprocessor in the computer performs the logical analyses or the arithmetical calculations,- Data is stored in the computers memory system,- The result of the analyses and calculations output can be printed on paper by the printer, shon in the form of graphics on the monitor or VDU and can be stored on tapes , disks etc.A computer simply follos instructions. No computer can produced useful results if the information data put into the computer or programme is inferior or incomplete. In other ords, GIGO Garbage In Garbage Out.HackingA hacker ho ants to invade sophisticated data netorks illegally - calls up a programme,-breaks into a system by using other peoples passords,-may even delete a system by means of this kind of electronic infiltration a virus a destructive programme that can ipe out a computers data files may be planted deliberately.As a result , various antiviral programmes have been invented to detect and delete the viruses.General dangers- The linking of information from every source available may make it possible to from a complete and accurate picture of every citizen. People may thus become transparent.- Groing data banks constitute a threat to privacy. Total control over human beings is no longer inconceivable.- Misuse of data or data manipulation is possible data protection may become more and more difficult , even impossible, to guarantee and supervise. st!Hądmz5mHsHCJaJmHsH5mHsHmHsHa5 IistąGhha9czIa 1h ą!ia8i8NormalCJsHaJmHsHtHAiDefault Paragraph Font IaistąG9czI00000000000000000000000...
Download