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History of digital cameras

Technology digital camera is directly related to and evolved from the same technology as the function to record the pictures on television. In 1951, the first video tape recorder (VTR) to take a picture of a television camera. Then convert that information into an electrical impulse (digital) and storing that information into the magnetic tape.

Bing Crosby laboratories (the research team funded by an engineer named Vrosby and led by John Mullin) made an early version of the VTR. In 1956, VTR technology was perfected (the VR1000 made by Charles P Ginsburg and the Ampex Corporation) and is commonly used by the television industry. Between television/video cameras and digital cameras that use CCD (Charged Couple Device) to adjust color and light intensity. During that time, the era digital camera has begun with a very rapidly.

In 1981, Sony introduced the first commercial electronic camera, called Mavica them images are recorded onto a mini disc and then put into a video reader connected to a monitor or television color. Although not yet able to say Mavica digital camera, it was actually a modification of a video camera that takes pictures spontaneously.

Since the mid-1970s, Kodak has a few discoveries about solid-state to change the image sensor that is light to digital images for use on a professional level and household consumers. In 188, Kodak scientists for the first time in the world to introduce megapixel sensor, which sensor is capable of recording 1,4 million pixels that can produce 5x7-inch digital photo print quality at that time. In 1987, Kodak released seven products for recording, storing, manipulating, electronic tranmission, and print something like the image of an object.

In `1990, Kodak developed a system of photo CDs, and suggested the first time in the world to establish digital color standards in the computer environment and computer peripherals. In 1991, Kodak released the first time for professionals, a system in shooting Digital Camera System (DCS), which target photo journalist. The camera is a Nikon F-# which is equipped with 1,3 Megapixels sensors.

The first digital camera for the consumer market that works with your home computer via USB (Unit Serial Bus) is a QuickTake 100 camera Aplle (February 17, 1994), the Kodak DC40 camera (28 March 1995), Casio qv-11 (with LCD monitor. late 1995), and the Sony Cyber-Shot Digital Still Camera (1996). However, kodak era with an aggressive marketing campaign to promote the DC40 and helped introduce the idea of digital photography to the public.

Kinko's and Microsoft's collaboration with Kodak Digital to create digital images using the software in various places of works and photo booth, which allowed customers to produce photo CDs. digital images, and then can add to their computer documents. IBM works with Internet-based Kodak make image exchange network.

Hewlett-Packard (HP) is the first company in terms of a color in their products are inkjet printer, so the coloring system to complement the printed images from a digital camera. So began the change digital camera with a new form. Digital cameras as conventional cameras, available model Point-And-Shot and digital single-lens reflex or Digital Single Lens Reflector (DSLR).

FlashDisk Transformer?

Until now, this small object is always in our pockets, it was the first history of the flashdisk, start from prototype to today's sophisticated. 

Explanation from new iPad

Through this video, the reader will clearly to be get as much information about the new technology Apples iPad. include the advantages and disadvantages of this Apple iPad for consumers to think twice before choosing the option to buy the new technology offered by the company Apple.

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History of Computers

1. The first computers generation

Named ENIAC ( Electronic Numeric Integration n Computer ), create by : Jhon Mauchly and Jhon Presper Eckert (Pensylvania). Usability : to provide for the United States armed forces, in terms of : to measure the ( bridge ) table and the range of missiles, from new weapons.

Specifications of the ENIAC :
- 1 computer machine 30 tons of built in a lab
- With as many as 18,000 vacuum tubes
- 140 Kw of electricity
- decimal operations
- consists of 20 ACC ( Accumulator )

2. Computer second generation

Proposed by Von Neumann ( consultant on the ENIAC ), updated specification becomes :
- Vacuum tubes to transistors
- IAS has a computer brand

This generation computer concepts become the basic model to the next computer.

3. The third computers generation

Amended as follows :
- Know as the microelectronics
- Digital lead
- Logic gates

First used by IBM and was found 360 IC, the changes which the clock speed to 1 Mega = 1,000,000 Op/sec.

4. The fourth computers generation

Amended as follows :
- Semiconductors memory appears
- Intel 8008 ( 1972 ) created the first 8-bit Microprocessor
- Intel raises 8080 ( 1974 ) 8 bits, which is faster than more insturction 8008
- Created in the form of LSI

5. The fifth computers generation

Undergoing change :
- Is raised VLSI Technology
- 1,000,000,000 Speed Op/sec
- 32 bit appears

Computer Memory

In general, a workspace memory (work area) of the computer processor. While the main memory in a computer is storage while where required by the processor that will operate a particular program or data.

Memory hierarchy in a system computer

A computer system has a variety of types of memory performance, capacity, and varying speeds in accordance with the level of the hierarchy. Memory which has the top hierarchy, has level of the highest speed, but has the capacity (storage capacity) at low.

In accordance with the level of the hierarchy, the memory in a computers can be distinguished as follows :

1. Register
   
2. Cache Memory (Static RAM)
3. Memori Utama (Dynamic RAM)
4. Memory Sekunder (On Bottom(Low Speed, High Capacity)