Whether you’re answering emails, beating a deadline, or looking for even more freelance gigs, many professionals simply can’t imagine their career without a laptop. It has become the ultimate work gadget of the 21st century, which many laptops now powerful enough to be used like a PC. However, not all freelancers are the same—and as such, require different tools to get the job done.That being said, here are some of the best laptops for every kind of freelancer imaginable.Best CPU: Apple MacBook Pro (Image Credit: CNet)If you're in the tech field and often deal with multiple p...

The whole boot process of computer can be summarized in 4 phases.1. BIOSIn the 70's  read-only memory(ROM) was invented. The boot program is written into ROM, the first thing the computer does is to read and execute this program when it's powered on.The program in this chip is called "Basic Input/Output System" (BIOS).1.1 Power-On Self-TestThe BIOS will first check whether the computer hardware can fulfill the basic conditions for booting up, this process is called Power-On Self-Test, simplified as POST.If the hardware has problems, the mother board will produce different beeps and the bo...

The previous post described motherboards and the memory map in Intel computers to set the scene for the initial phases of boot. Booting is an involved, hacky, multi-stage affair – fun stuff. Here’s an outline of the process: An outline of the boot sequence Things start rolling when you press the power button on the computer (no! do tell!). Once the motherboard is powered up it initializes its own firmware – the chipset and other tidbits – and tries to get the CPU running. If things fail at this point (e.g., the CPU is busted or missing) then you will likely...

Computers are useless. They can only give you answers. â€“ PicassoMany people (including my mother-in-law) think that computers are becoming so smart that programmers will be no longer needed in the near future. Other people think that programmers are geniuses who constantly solve sophisticated math puzzles in front of their monitors. Even many programmers don’t have clear idea what they do.In this post I want to provide some explanation to uninformed people what programmers really do:Programmers are translators of human ideas into the language of computers.They are a link bet...