Tag Archive for computer

Bad Caps

A few years ago a number of sub-standard electrolytic capacitors got into the supply chain.  These capacitors or caps for short are used on circuit boards like motherboards to smooth out ripples in power leads to on-board chips.  They look like a can turned on end and have two wires coming out the bottom which…

Early Computing at Princeton

All Princeton Alumni get the magazine known as the PAW for the Princeton Alumni Weekly.  It’s not really a weekly any more but the name stuck.  The April 4, 2012 issue had two interesting articles about early computing.  Alan Turing *38 (the asterisk or star indicates a graduate degree and an apostrophe means undergraduate degree…

RAM needs

RAM stands for Random Access Memory.  The RAM in your computer is where everything happens.  Programs reside on disk but, in the computer architecture proposed by John von Neumann and universally used in computers since, programs must be read into memory and can only be executed there.  The data also resides in RAM memory.  There…

Malware – Quick Definitions

Malware is a generic term for all types of software that the bad guys use to attack your computer for their nefarious purposes.  Some of these yo-yos are just pimply faced guys living in their mother’s basements trying to get creds with other hackers by bragging on their bulletin boards.  Others want to take over…

A Recent Event

Recently a customer came to me with a laptop running Vista.  Neither the keyboard nor the touchpad worked.  That was the simple part.  I plugged in an external USB keyboard and mouse, then, after they had been discovered and installed, I went to the Device Manager and removed the keyboard and touchpad.  After a reboot…