History of Educational Technology
RecoverySoft / September 22, 2018

There is no written evidence which can tell us exactly who has coined the phrase educational technology. Different educationists, scientists and philosophers at different time intervals have put forwarded different definitions of Educational Technology. Educational technology is a multifaceted and integrated process involving people, procedure, ideas, devices, and organization, where technology from different fields of science is borrowed as per the need and requirement of education for implementing, evaluating, and managing solutions to those problems involved in all aspects of human learning. Educational technology, broadly speaking, has passed through five stages. The first stage of educational technology is coupled with the use of aids like charts, maps, symbols, models, specimens and concrete materials. The term educational technology was used as synonyms to audio-visual aids. The second stage of educational technology is associated with the ‘electronic revolution’ with the introduction and establishment of sophisticated hardware and software. Use of various audio-visual aids like projector, magic lanterns, tape-recorder, radio and television brought a revolutionary change in the educational scenario. Accordingly, educational technology concept was taken in terms of these sophisticated instruments and equipments for effective presentation of instructional materials. The third stage of educational technology is linked with the development of mass…

The History Of Data Deduplication
RecoverySoft / September 17, 2018

Data deduplication has been around, at least in its most primitive form, since the 1970’s. It initially started because companies wanted to store large amount of customer contact information without using a large amount of storage space. One of the first ideas was to go through and remove duplicate data. For example, a company might have an address for shipping, and an address for billing to a given customer. In these cases, those identical addresses would be combined into one file. This was done by data entry clerks who would review the data line by line and get rid of duplicates. Of course, the amount of personnel needed to do this was extensive and it took a very long time. Sometimes, the data deduplication process would take months to complete. However, considering that most of this occurred on hard copy, it wasn’t a major problem. The big problems cam along when computer use became widespread in office environments. With computers in wide use and the explosion of the internet, the amount of data available exploded as well. Backup systems were created to ensure that companies would not lose all their data. As time went by, floppy discs and other external…

History of Educational Technology
RecoverySoft / September 16, 2018

There is no written evidence which can tell us exactly who has coined the phrase educational technology. Different educationists, scientists and philosophers at different time intervals have put forwarded different definitions of Educational Technology. Educational technology is a multifaceted and integrated process involving people, procedure, ideas, devices, and organization, where technology from different fields of science is borrowed as per the need and requirement of education for implementing, evaluating, and managing solutions to those problems involved in all aspects of human learning. Educational technology, broadly speaking, has passed through five stages. The first stage of educational technology is coupled with the use of aids like charts, maps, symbols, models, specimens and concrete materials. The term educational technology was used as synonyms to audio-visual aids. The second stage of educational technology is associated with the ‘electronic revolution’ with the introduction and establishment of sophisticated hardware and software. Use of various audio-visual aids like projector, magic lanterns, tape-recorder, radio and television brought a revolutionary change in the educational scenario. Accordingly, educational technology concept was taken in terms of these sophisticated instruments and equipments for effective presentation of instructional materials. The third stage of educational technology is linked with the development of mass…

History of Educational Technology
RecoverySoft / September 14, 2018

There is no written evidence which can tell us exactly who has coined the phrase educational technology. Different educationists, scientists and philosophers at different time intervals have put forwarded different definitions of Educational Technology. Educational technology is a multifaceted and integrated process involving people, procedure, ideas, devices, and organization, where technology from different fields of science is borrowed as per the need and requirement of education for implementing, evaluating, and managing solutions to those problems involved in all aspects of human learning. Educational technology, broadly speaking, has passed through five stages. The first stage of educational technology is coupled with the use of aids like charts, maps, symbols, models, specimens and concrete materials. The term educational technology was used as synonyms to audio-visual aids. The second stage of educational technology is associated with the ‘electronic revolution’ with the introduction and establishment of sophisticated hardware and software. Use of various audio-visual aids like projector, magic lanterns, tape-recorder, radio and television brought a revolutionary change in the educational scenario. Accordingly, educational technology concept was taken in terms of these sophisticated instruments and equipments for effective presentation of instructional materials. The third stage of educational technology is linked with the development of mass…

The History Of Data Deduplication
RecoverySoft / September 14, 2018

Data deduplication has been around, at least in its most primitive form, since the 1970’s. It initially started because companies wanted to store large amount of customer contact information without using a large amount of storage space. One of the first ideas was to go through and remove duplicate data. For example, a company might have an address for shipping, and an address for billing to a given customer. In these cases, those identical addresses would be combined into one file. This was done by data entry clerks who would review the data line by line and get rid of duplicates. Of course, the amount of personnel needed to do this was extensive and it took a very long time. Sometimes, the data deduplication process would take months to complete. However, considering that most of this occurred on hard copy, it wasn’t a major problem. The big problems cam along when computer use became widespread in office environments. With computers in wide use and the explosion of the internet, the amount of data available exploded as well. Backup systems were created to ensure that companies would not lose all their data. As time went by, floppy discs and other external…

The History Of Data Deduplication
RecoverySoft / September 13, 2018

Data deduplication has been around, at least in its most primitive form, since the 1970’s. It initially started because companies wanted to store large amount of customer contact information without using a large amount of storage space. One of the first ideas was to go through and remove duplicate data. For example, a company might have an address for shipping, and an address for billing to a given customer. In these cases, those identical addresses would be combined into one file. This was done by data entry clerks who would review the data line by line and get rid of duplicates. Of course, the amount of personnel needed to do this was extensive and it took a very long time. Sometimes, the data deduplication process would take months to complete. However, considering that most of this occurred on hard copy, it wasn’t a major problem. The big problems cam along when computer use became widespread in office environments. With computers in wide use and the explosion of the internet, the amount of data available exploded as well. Backup systems were created to ensure that companies would not lose all their data. As time went by, floppy discs and other external…

Hard Drive History
RecoverySoft / September 11, 2018

The hard drive is an important part of modern day computing, because it allows for information to be stored and then accessed at a later point. However, the modern day drive has its roots in technology that was developed over 50 years ago. The first drive was developed in 1956 and resembled what would look like a modern day air conditioning unit. The units of yesterday had extremely small storage capacities yet took up 100 times as much room. As technology evolved, the capacities of hard drives increased while they took up less and less space. The Early Days The first idea of a unit to store and receive data was imagined in 1953 by engineers at IBM. They recognized the need of a piece of hardware that could have high capacity, rapid access to the data, and be cheap to construct. The first technologies considered were wire matrices, rod arrays and even drum arrays. However, the disk drive was finally settled on as the unit of choice because of its ease of construction and easy mechanics. The first drive was the IBM 305 RAMAC system which could store 4.4 megabytes at a cost of $160,000 in today’s money. 1950s-1970s…

History of the Computer – Cache Memory Part 1 of 2
RecoverySoft / September 11, 2018

We looked at the early digital computer memory, see History of the computer – Core Memory, and mentioned that the present standard RAM (Random Access Memory) is chip memory. This conforms with the commonly quoted application of Moore’s Law (Gordon Moore was one of the founders of Intel). It states that component density on integrated circuits, which can be paraphrased as performance per unit cost, doubles every 18 months. Early core memory had cycle times in microseconds, today we are talking in nanoseconds. You may be familiar with the term cache, as applied to PCs. It is one of the performance features mentioned when talking about the latest CPU, or Hard Disk. You can have L1 or L2 cache on the processor, and disk cache of various sizes. Some programs have cache too, also known as buffer, for example, when writing data to a CD burner. Early CD burner programs had ‘overruns’. The end result of these was a good supply of coasters! Mainframe systems have used cache for many years. The concept became popular in the 1970s as a way of speeding up memory access time. This was the time when core memory was being phased out and being…

The History Of Data Deduplication
RecoverySoft / September 6, 2018

Data deduplication has been around, at least in its most primitive form, since the 1970’s. It initially started because companies wanted to store large amount of customer contact information without using a large amount of storage space. One of the first ideas was to go through and remove duplicate data. For example, a company might have an address for shipping, and an address for billing to a given customer. In these cases, those identical addresses would be combined into one file. This was done by data entry clerks who would review the data line by line and get rid of duplicates. Of course, the amount of personnel needed to do this was extensive and it took a very long time. Sometimes, the data deduplication process would take months to complete. However, considering that most of this occurred on hard copy, it wasn’t a major problem. The big problems cam along when computer use became widespread in office environments. With computers in wide use and the explosion of the internet, the amount of data available exploded as well. Backup systems were created to ensure that companies would not lose all their data. As time went by, floppy discs and other external…

History of the Computer – Cache Memory Part 1 of 2
RecoverySoft / September 5, 2018

We looked at the early digital computer memory, see History of the computer – Core Memory, and mentioned that the present standard RAM (Random Access Memory) is chip memory. This conforms with the commonly quoted application of Moore’s Law (Gordon Moore was one of the founders of Intel). It states that component density on integrated circuits, which can be paraphrased as performance per unit cost, doubles every 18 months. Early core memory had cycle times in microseconds, today we are talking in nanoseconds. You may be familiar with the term cache, as applied to PCs. It is one of the performance features mentioned when talking about the latest CPU, or Hard Disk. You can have L1 or L2 cache on the processor, and disk cache of various sizes. Some programs have cache too, also known as buffer, for example, when writing data to a CD burner. Early CD burner programs had ‘overruns’. The end result of these was a good supply of coasters! Mainframe systems have used cache for many years. The concept became popular in the 1970s as a way of speeding up memory access time. This was the time when core memory was being phased out and being…