By Pawan K. Bhardwaj
If you are getting ready for the recent CompTIA 2006 certification in A+, or the present community+ and safety+ certifications, you will discover this e-book important. It offers the entire info you want to prepare for those assessments, together with the 4 new A+ assessments -- the mandatory necessities examination and 3 non-obligatory checks that pertain for your quarter of specialization.
As with different O'Reilly Nutshell books for certification assessments, A+, community+ and safety + in a Nutshell follows a confirmed kind and method. It reports all the subject matters had to grasp each one examination in a remarkably concise structure, with required wisdom boiled all the way down to the center. rather than plowing via 500 to seven hundred pages to organize for every examination, this e-book covers every one in nearly a hundred and fifty pages. and as the pursuits for the 3 optional A+ tests are redundant, and the booklet covers them in a single section.
The assessments lined include:
- A+ necessities: Required for A+ 2006 certification
- EXAM 220-602:...
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Extra resources for A+, Network+, Security+ Exams in a Nutshell. A Desktop Quick Reference
As the processor technology grows in features and advanced capabilities, the space on the motherboard becomes the main limitation. The Staggered Pin Grid Array (SPGA) packaging solves this problem. SPGA uses arrays of pins, which form a diagonal square. Characteristics of processors The following paragraphs summarize some basic characteristics of processors: Hyper-threading Technology (HTT)HTT is the specialized form of simultaneous multi-threading (SMT) used in Intel's Pentium 4 microprocessors.
The size and packing of old CPUs used to be very large compared to the size and shape we see these days. Old CPUs also had limited capabilities and features. The two main manufacturers of microprocessor chips are Intel and AMD. Old processors came in a rectangular shape and with Dual inline package (DIP), with two rows of connection pins on each side. New processors come in Pin Grid Array (PGA) packaging, which is a square shape and has connection pins on all four sides. Some processors use a Single Edge Contact Cartridge (SECC) Form Factor.
Figure 2-2 shows some common expansion bus slots on the motherboard. Expansion bus slots Each type of expansion bus slot serves a particular function, as summarized in the following paragraphs: Peripheral Component Interconnect (PCI)PCI slots are available in most computers these days. These slots are used to connect PCI compatible cards. They are usually white and are about three inches long. Accelerated Graphics Port (AGP)AGP slots are used to connect video cards. The AGP port allows the video adapter to communicate directly with the processor.
A+, Network+, Security+ Exams in a Nutshell. A Desktop Quick Reference by Pawan K. Bhardwaj