2019 SS2 WEEK 9 TOPIC: FILE INSECURITY II

COMPUTER FILES VS. MANUAL FILES: Manual filing is the process of actually handling a physical piece of data. In the days before computers, a person made a folder of data and kept it in a filing cabinet, alphabetized or according to category. When the early computer came along, people converted the data into punched cards system that was readable to the computer. These looked like envelopes but were made of a light cardboard and were loaded into a punch card reader in a stack. The reader then entered the data into the computer, the cards were removed, and another pile put into the machine. ADVANTAGES OF COMPUTERIZED FILES 1. computers can form calculations quickly and efficiently 2. they use up less room 3. Data can be retrieved quickly and easily 4. Documents that lost can often be retrieved 5. Mistakes and changes made can be corrected or changed easily by using the back space or dele keys 6. Quicker to find things and sort things 7. Makes work easier 8. You can find work in seconds with a search tool, much quicker than rifling through folders by hand Limitation of computerized files 1. Computerized filling system is expensive to set up 2. Skilled labor with proficiency in computers is required 3. Not effective where there is irregular electric supply 4. A normal filling system cannot be destroyed by an accidental power loss. Also, hackers cannot access a normal filling system from another computer. This helps security issues