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  • container
  • float

    float is a type in most software languages referencing an IEEE floating point number. These numbers are generally defined on 32 or 64 bits with three parts: a sign, an exponent and a mantissa. There is also a bias which is not saved in the number. The sign is 0 (positive) or 1 (negative). This means you have a representation of: +0.0 and -0.0. The exponent is about 1/6th the total size in bits. The bias is added/subtracted from the exponent. In the end, it is a signed power of 2 exponent (i.e. exercises a shift on the mantissa.) The mantissa forms the current number.

  • OS
  • reboot

    The action of restarting a computer is called reboot. This reloads the operating system and your different auto-start software.

    There are two types of reboots: a cold reboot and a warm reboot.

    The cold reboot is the one where you turn your computer all the way off and back on. It is considered to be the ultimate reboot which ensures that everything is alright.

    The warm reboot is when you just reboot your operating system. This means some of the hardware parts may not be fully reset as expected in a cold reboot. There are several reasons for this, at times the BIOS of your system does not give the correct signals to all the parts, and at times the signal doesn't propagate to all the parts as it should.

    This is why a warm reboot does not always work (i.e. think when you change a driver and the new driver is not able to properly reset the state of a board or chip... turning the computer all the way off and back on may resolve the problem.)

  • update