Frenchman Basile Bouchon Correct Answer: (First method to store data) He devised a way to store the patterns of thread in a loom that previously were set
... [Show More] manually.
How date has been processed Correct Answer: Punch Cards --> magnetic tape --> magnetic disk --> cds / dvds --> ssds / hdds
Punchcard Correct Answer: A system whereby numbers could be represented by holes punched in specific locations on a card. Herman Hollerith created and patented the system. Data stored on cards or tape had to be accessed sequentially from the start to the end.
Magnetic Tape Correct Answer: Magnetic tape began to replace punch cards in the 1950s. Magnetic tape was more durable than punch cards and could contain relatively large amounts of data. Early IBM magnetic tapes had a storage capacity of 5 to 140 megabytes. Data stored on cards or tape had to be accessed sequentially from the start to the end.
Magnetic Disk Correct Answer: Magnetic disk storage started to be used in 1956 when IBM introduced the 305 RAMAC (Random Access Method of Accounting and Control). This unit could store five million bits of data (5 megabits or 5 MB). This was the first electronic storage that permitted random access to data. You could jump around to find the exact data you were looking for. Magnetic disk drives require power to spin the disk and time to accelerate the rotation to the necessary revolutions per second before it can be used. This "movement" generates heat which requires a fan to dissipate the heat further increasing the power needs, weight, and size of the device.
SSDs Correct Answer: Solid state storage is also known as flash storage. The first flash storage was introduced by Toshiba in 1989. SSDs have no moving parts and thus are ideal for portable devices like laptop PCs, cell phones and cameras that depend on batteries. No moving parts means the devices don't drain the batteries and don't generate heat. SSDs have proven to be more reliable than magnetic hard drives since they have no moving parts.
IoT Correct Answer: Internet of Things. The IoT is the combination of the current Internet with machines and devices of all types. These machines and devices include phones, cameras, TVs, refrigerators, washing machines, vehicles, and thousands of others.
Problems related to storing and accessing data tend to be caused by the following two factors Correct Answer: Companies today need to store large amounts of data.
An increasing number of people want access to the data.
Petabyte Correct Answer: A petabyte is 2 to the 50th power, or 1,125,899,906,842,624 bytes. However, petabytes are often estimated as 10 to the 15th power, or 1,000,000,000,000,000 bytes.
Terabyte Correct Answer: A terabyte is 2 to the 40th power, or 1,099,511,627,776 bytes. It can be estimated as 10 to the 12th power, or 1,000,000,000,000 bytes. [Show Less]