Computing Hardware


Tim Burners-Lee

Tim burners-lee was born on 8th June 1955. He is a computer scientist. He created the world wide web and he made the first communication between HTTP client and server through the internet on November 1989. He also received a knighthood from Queen Elizabeth II in 2004. He was given the award of "100 most important people of the 20th century" by The Time Magazine.
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World Wide Web Turns 25: Inteview with inventor Sir Tim Berners-Lee

The Four Generations Of Computers

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Inputs and Outputs

  1. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. The term can also be used as part of an action; to "perform I/O" is to perform aninput or output operation. I/O devices are used by a human (or other system) to communicate with a computer.


A drive is a medium that is capable of storing and reading information that is not easily removed like a disk. The picture is an example of different drives listed in Microsoft Windows My Computer.In the example shown on this page, drive A: is the floppy drive, C: is the hard disk drive, D: and E: partitions of the hard drive, and F: is the CD-ROM drive. Typically the CD-ROM drive is the last drive so in most situations the hard drive is the C: drive and a CD-ROM or other disc drive is the D: drive.

Types of computer drives

  • Bernoulli drive
  • Disc Drives:Blu-ray, CD-R, CD-ROM, CD-RW and DVD
  • Floppy disc drive
  • Hard drive
  • Local drive
  • LS120 drive aka SuperDisk
  • Network drive
  • RAM disc
  • SSD
  • Tape drive
  • Virtual drive
  • Zip drive


Early electronic computers were fitted with a panel of light bulbs where the state of each particular bulb would indicate the on/off state of a particular register bit inside the computer. This allowed the engineers operating the computer to monitor the internal state of the machine, so this panel of lights came to be known as the 'monitor'. As early monitors were only capable of displaying a very limited amount of information, and were very transient, they were rarely considered for programme output. Instead, a line printer was the primary output device, while the monitor was limited to keeping track of the programme's operation.

As technology developed it was realized that the output of a CRT display was more flexible than a panel of light bulbs and eventually, by giving control of what was displayed to the programme itself, the monitor itself became a powerful output device in its own right.

The first computer monitors used cathode ray tubes (CRTs). Prior to the advent of home computers in the late 1970s, it was common for a video display terminal (VDT) using a CRT to be physically integrated with a keyboard and other components of the system in a single large chassis. The display was monochrome and far less sharp and detailed than on a modern flat-panel monitor, necessitating the use of relatively large text and severely limiting the amount of information that could be displayed at one time. High-resolution CRT displays were developed for specialized military, industrial and scientific applications but they were far too costly for general use.

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CPU (pronounced as separate letters) is the abbreviation for central processing unit.

Sometimes referred to simply as the central processor, but more commonly called processor, the CPU is the brains of the computer where most calculations take place. In terms of computing power, the CPU is the most important element of a computer system.

The CPU itself is an internal component of the computer. Modern CPUs are small and square and contain multiple metallic connectors or pins on the underside. The CPU is inserted directly into a CPU socket, pin side down, on the motherboard.

Each motherboard will support only a specific type (or range) of CPU, so you must check the motherboard manufacturer's specifications before attempting to replace or upgrade a CPU in your computer. Modern CPUs also have an attached heat sink and small fan that go directly on top of the CPU to help dissipate heat.


RAM is an acronym for "random access memory." RAM is a form of computer memory storage. RAM technology allows for data storage in integrated circuits that can be stored and accessed at random, regardless of position or relevance to other dataROM is an acronym for "read only memory" and is a form of computer data storage. Data stored in ROM, as opposed to RAM, cannot be edited easily. The most popular version of ROM is the compact disc, or CD-ROM. Once a CD-ROM has data written to it, the data cannot be changed. A rewritable CD (CD-RW) technically is neither ROM nor RAM.


The motherboard serves to connect all of the parts of a computer together. The CPU, memory hard drives, optical drives, video card, sound card and other ports and expansion cards all connect to the motherboard directly or via cables.

The motherboard is the piece of computer hardware that can be thought of as the "back bone" of the PC.

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Raspberry Pi

Raspberry Pi changed things pretty drastically. And there are several key factors why:

  • Minimum user effort to get it working. Admit it – Raspberry Pi team made great job in preparing things to work Linux almost out of box. Just write pre-compiled image to flash and you are done.

  • Plug and play capability. You don’t need to mack around in order to get visual output or input. All you need is to plug monitor to HDMI port or use any TV with Video input and you are graded with video image. And it supports 1080p video.

  • Intrigue from first moment. Remember how Raspberry Pi was introduced first? The buzz was created way before the actual board appeared. This made people anxious to get and try. And it still feels that spirit of “Hard To Find Raspberry Pi” flows around. Probably it is from several retailers, but eBay never ran out of them.

Just Bought A Raspberry Pi? 11 Things You Need To Know

3D pprinter

D printing technology is quickly advancing and is soon expected to become one of the mainstream leading technologies in society.

Many people in different parts of the world, scientists and consumers alike, are embracing the technology because of its varied uses.

With more advancements being made every day, a lot of discoveries have been unveiled on many other applications of 3D printing that make it an extremely important technology for society. This and the fact that the price of 3D printers is gradually declining, has attracted a lot of attention across the world to this revolutionary technology.Before the era of 3D printing, patients who desperately needed organ transplants had to wait on long lists for their turn to come. This sometimes did not end so well to some patients, especially those whose condition was critical. With 3D printing being used to make many conventional organs required for transplants, there won’t be a need to wait on donors. Organs will be quickly fabricated when needed, hence a lot more lives will be saved.After the success of creating some organs and structures via 3D printing, scientists are now working on how to create artificial limbs using the technology. If successful, this will be another gigantic advancement of 3D printing in the magnetic field

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How has technology changed our lives?

Here are 7 examples of how technology has forever changed our lives.

1. Technology has killed the greeting card

We are no longer paying postage to send out birthday cards. An e-card, text, or email has that covered.

2. How we date

Online dating has been around for a while, and many people are using Google to get see if their date is a dud.

3. How we share

We are no longer using the traditional route of sharing information. Social networks now allow us to share pretty much anything, anywhere, anytime.

4. How we watch TV

Our TV experience has evolved. We are no longer prisoner to a TV set. We can now watch what we what, when we want, how we want.

5. How we communicate

Gone are the days of picking up the phone or heading over to someone’s house to chat. Smartphones and the internet have replaced traditional chats with virtual ones.

6. How we read

We no longer need to carry books if we don’t want to. Smartphones, tablets, and e-readers have made it easier for us to carry our books around without breaking our backs.

7. How we parent

Parenting has now expanded to the internet. We now have to teach our children digital etiquette and warn them about the dangers on the streets as well as online.

How has technology changed your life?

Evaluation to Latisha

I really liked your flyer because you used a lot of information and detail. I can tell most of it was written by you but I could tell some was copied and pasted.

But overall this is a good flyer and very creative so I would give you a .........................................................................................................................................................................................................................................................................................................................................................................................................................................................9.4527/10 only because some of it was not your own words but I like that you used a lot of colour.

Georgia xxxx