The FORMAT command writes marks on the disk to indicate the beginning and end of tracks and sectors. There are two kinds of formatting: ‘low level’ and ‘conventional’. The former is done by the disk manufacturer and does wipe out any previous data on the disk. The latter (conventional formatting) does not wipe the disk clean; any data from before can still be recovered easily forensically. (more…)

This information should be of security interest because it can help render any previously stored information on a hard disk unreadable. There are different ‘flavors’ of FDISK and you should use the proper one for the operating system you have in your computer.

• DOS 6.22 FDISK cannot handle drives larger than 8.4 GB. (more…)

Computer security is the most frequent used word in the modern security challenging time. Security of computer is the part of technology which is used to secure computer, the information or the computer network. At the time period when a computer is connected with the other computer or with the other network, they remain at a common risk. The term computer network has come from the issue when the computer is connected with the internet. The reasons of this risk and the way of remedy should be known to you when you are probably in danger situation. (more…)

Computer must first run BIOS before it can boot to operating system and running your favorite software application. BIOS (Basic Input Output System) is procedural software that is programmed into a ROM (Read Only Memory). In the 80’s and 90’s, BIOS is sometimes referred as CMOS (Complementary Metal Oxide Semiconductor). (more…)