According to the SI system, a kilo =1000 of any quantity or that’s what we have learnt in school. Honouring this fact, 1 kilobyte = 1000 bytes. But our digital systems work on a binary scale. So according to it 1 kilobyte= 210 = 1024 bytes.
Microprocessor and microcontroller are the devices at the core upon which the whole embedded system resides. People generally get confused with these terms, using one in place of another. Though there are many similarities, both these devices are significantly different. A microprocessor is the heart of a Computer system. Whereas a microcontroller is the heart of an embedded system. Judging whether an IC is a microcontroller or microprocessor is difficult as both are available in many packages.