Informatics

Desktop vs. Laptop

Desktop vs. Laptop

VS.

Hello,

Today I'm going to give you some advantages and disadvantages about the Desktop and the Laptop.
Let's get started then.

Desktop:

- A desktop takes in a lot of space.

- A desktop is very large and is not portable, you can unplug it and take it with you but I do not recommend that.

+ A desktop doesn't get overheated easy, so it is faster.

+ You can easily modify a Desktop. You can replace the screen, keyboard and some other internal components.

Laptop:

- It gets overheated very fast if you don't have a good cooler or underground.

- If you wan't to replace some components you have to get it done by a professional IT'er.

+ A laptop is very small, you can place it anywhere you want.

+ It is portable, you can easily take it to your work, family, etc...

IF YOU GOT SOME MORE QUESTIONS ABOUT THIS, FEEL FREE TO ASK THEM.
I'M NOT PERFECT AND THIS BLOG ISN'T TOO BUT I'M OPEN FOR SOME CRITISISM.

Building or buying?

Building your own pc or buy a complete pc?

Hello,

I'm going to help you make the decision above.
Let's get started.

First of all I'll give you some pros of building your own pc:

- It is alot cheaper then buying a complete one.
- You know accectly what is inside of your pc.
- Your pc will be totally modified to your preferences, you will have your own perfect machine.
- In my opinion it is a lot of fun to assamble the pc.

There are some cons though:

- It takes time to assamble it, especially if you don't like assambling things.
- It takes time to find all the right components.
- If you have technical problems with a specific component you can't go to the shop and get it fixed, you have to send the component to the factory.
- You NEED to take advice from a professional if you are not good with computers.

My personal opinion:

I would prefer to build my own pc, I like pc's so I won't mind to assamble one.
It is alot better and cheaper too.

It's deffinately worth at try!

IF YOU GOT SOME MORE QUESTIONS ABOUT THIS, FEEL FREE TO ASK THEM.
I'M NOT PERFECT AND THIS BLOG ISN'T TOO BUT I'M OPEN FOR SOME CRITISISM.

The Processor

The Processor

Hello,

I'm going to tell you something more about the processor in your pc.
First of all, every pc has a processor. Otherwise your pc can't work correctly.

The function of your processor:

- Processing of all instructions based on logic calculations and desisions.
- Sending the results and assignments to the chipset (Read blog: The Chipset) and then send them to all the different pieces of your pc.
- Management of the memory

The processor can be placed different on the motherboard, in a socket or in a slot.

Two typical components of the CPU (processor) are the ALU and the CU.

The function of the ALU is to calculate and make all the decisions.
The function of the CU is going to take all the instructions out of the memory and then he decodes them and execute them

The processor has a cyclus of working:

- Prefetch: Taking the instructions out of the memory.
- Decode: Converting to a code wich the processor can read.
- Execute: Executing the instructions.

Most of the processors are produced by two very well known companies, Intel or AMD.
Intel is a very stable processor, you can not overclock (upgrade, make it better) it.
AMD processors can be overclocked very easy but you have to be a professional to do it. If you do it yourself be very carefull with it because if you do things wrong you can buy yourself a new processor.

IF YOU GOT SOME MORE QUESTIONS ABOUT THIS, FEEL FREE TO ASK THEM.
THESE ARE ONLY THE BASICS AND THERE IS ALOT MORE TO LEARN ABOUT.
I'M NOT PERFECT AND THIS BLOG ISN'T TOO BUT I'M OPEN FOR SOME CRITISISM.

The Memory

The Memory

Hello,

I'm going to tell you something more about the Memory in your pc.

The memory of a computer is a collective noun for the places where data is saved temporarily or permanent.

There are two kinds of memory, internal and external. The internal memory is being used by the processor for the data and instructions where the processor is working with.

The external memory is being used for the storage of userdata and userapplications.

There are a lot different ROM-memories:

These ones are mostly discs:

- ROM/MROM: The code can NOT be changed, it is permanent.

- PROM: With the help of a special program, this memory can be rewritten once.

- EPROM: The code on this memory can be rewritten and deleted.

- EEPROM: More flexible then the EPROM. Can be rewritten and deleted.

This is probably a USB-Stick or memory card (extern):

- FLASH-ROM: This kind of ROM can be rewritten with only one click.

The Cooling

The Cooling

Hello,

I'm going to tell you something more about the cooling in your pc and the different types of cooling.

Elektronic components in your pc are very sensible for temperature. They can melt very easy.
There are 2 main methods of cooling your pc. There are some others but I do not recommend them to you because they are very complex and expensive.

The first type is aircooling (Cheapest), this type is build with 2 parts: a coolblock and a ventilator.
The coolblock is mostly made of aluminium (cheaper) or copper (expensive cause of better conduction). In this coolblock there are different staves wich provide a bigger surface, this means better cooling.
The ventilator blows the hot air through the staves wich will remove the heat.

The second type of cooling is watercooling, it is based on distilled water. This type is build with 3 parts: a waterblock, a pump and a radiator. The waterblock is placed on the top of the processor (Read blog: The Processor). On this waterblock there are two connections, one to lead cold water to the block and another one to lead the hot water away.

This cooler is better then aircooling however this system is much more complex and not cheaper at all.

IF YOU GOT SOME MORE QUESTIONS ABOUT THIS, FEEL FREE TO ASK THEM.

THESE ARE ONLY THE BASICS AND THERE IS ALOT MORE TO LEARN ABOUT.

I'M NOT PERFECT AND THIS BLOG ISN'T TOO BUT I'M OPEN FOR SOME CRITISISM.

The Original Harddrive

The Original Hard Drive

Hello, I'm going to tell you something more about the harddrive.

A hard drive is a data storage device used for storing and retrieving digital information using rapidly rotating disks (platters) coated with magnetic material.

The harddrive is different from other permanent memories in three different ways: Bigger storage, faster and durability.

This is a picture with all the components:

You can connect a hard drive with these connection gates:

- SCSI

- SATA (Serial advanced technology attachment)

- SAS(Sereial attached SCSI)

You can connect external hard drives with these connection gates:

- USB

- Firewire-Gate

- eSATA

- NAS

Your hard drive's speed depends on these factors:

- The rotation speed

- The acces time

- The latency time

- The data acces time

IF YOU GOT SOME MORE QUESTIONS ABOUT THIS, FEEL FREE TO ASK THEM.
THESE ARE ONLY THE BASICS AND THERE IS ALOT MORE TO LEARN ABOUT.
I'M NOT PERFECT AND THIS BLOG ISN'T TOO BUT I'M OPEN FOR SOME CRITISISM.

The Hybrid Hard Drive

The Hybrid Hard Drive

Hello,

I'm going to tell you something more about the hybrid hard drive.

This is a variant of the original hard drive.

A difference between the original hard drive and the hybrid hard drive is that the platters of this hard drive are being placed in rest.

The data is not directly written on the platters but they are saved on a flashbuffer.

There are only 2 situations when the platters start spinning:

1. The buffer has almost reached his maximum capacity. The data needs to be transferred from the buffer to the hard drive. After the writing, the platters are being in put in rest again because the cache of the flashmemory is empty and ready to be used again.

2. The user needs some data from the hard drive and this data isn't saved on the buffer. The platters begin to spin so they can load the data from the buffer and then they go back to rest.

Some advantages of buying a hybrid hard drive:

- Lower energy consumption

- It needs less time to startup

- Less heat

- Less sound

- Higher reliability

zaterdag 4 oktober 2014