Threats to Computers & Communications Systems

Security issues go right to the heart of the workability of computer and communications systems. Here we discuss several threats to computers and communications systems.

Errors & Accidents

In general, errors and accidents in computer systems may be classified are below here:

·         Human Errors:

People can complicate the workings of a system are the following:

[1]    Humans often are not good at assessing their own information needs. For Example, many users will acquire a computer and communications system that either is not sophisticated enough or is far more complex than they need.

[2]    Human emotions affect performance. For example, one frustrating experience with a computer is enough to make some people abandon the whole system. But throwing your computer out the window is not going to get you any closer to learning how to use it better.

·         Procedural Errors:

Some spectacular computer failures have occurred because someone did not follow procedures. In 1999, the 125$ million Mars Climate Orbiter was fed data expressed in pounds, the English unit of force, instead of newtons, the metric unit (about 22% of a pound). As a result, the spacecraft flew to close to the surface of Mars and broke apart.

·         Software Errors:

We are forever hearing about “software glitches” or “software bugs”. A software bug is an error in a program that causes it not to work properly. One applicant, Yale University student Amit Sachdeva, found himself spending night after night logging on again and again. His routine: say awake until 2am when internet traffic slows down, plod through a few pages until an error message appeared, then watch as the system froze and crashed.

·         Electromechanical Problems:

Mechanical systems, for example, printers and electrical frameworks, for example, circuit sheets, don't generally work. They may defectively be built, get filthy or overheated, destroy, or ended up harmed in some other way. Power disappointments (brownouts and power outages) can close systems down. Power surges can likewise brownout hardware.

·         “Dirty Data” Problems:

When keyboarding a research paper, you undoubtedly make a few typing errors (which, hopefully, you clean up). SO do all the data-entry people around the world who feed a continual stream of raw data into computer systems. A lot of problems are caused by this kind of “dirty data”. Dirty Data is incomplete, outdated, or otherwise inaccurate data.  

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