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1980 – Seagate releases the first 5.25-inch hard drive, the ST-506; [37] it had a 5-megabyte capacity, weighed 5 pounds (2.3 kilograms), and cost US$1,500 [38] 1982 – HP 7935 404 megabyte, 7-platter hard drive for minicomputers, HP-IB bus, $27,000; 1983 – RO351/RO352 first 3 1 ⁄ 2 inch drive released with capacity of 10 megabytes [39]
Parallel ATA. Parallel ATA (PATA), originally AT Attachment, also known as Integrated Drive Electronics (IDE), is a standard interface designed for IBM PC -compatible computers. It was first developed by Western Digital and Compaq in 1986 for compatible hard drives and CD or DVD drives. The connection is used for storage devices such as hard ...
Parallel SCSI (formally, SCSI Parallel Interface, or SPI) is the earliest of the interface implementations in the SCSI family. SPI is a parallel bus; there is one set of electrical connections stretching from one end of the SCSI bus to the other. A SCSI device attaches to the bus but does not interrupt it. Both ends of the bus must be terminated.
List of interface bit rates. This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels. The distinction can be arbitrary between a computer bus, often closer in space, and larger ...
70 lb (32 kg) Dimensions. 24 in × 12.5 in × 6.5 in (61 cm × 32 cm × 17 cm) The Apollo Guidance Computer (AGC) was a digital computer produced for the Apollo program that was installed on board each Apollo command module (CM) and Apollo Lunar Module (LM). The AGC provided computation and electronic interfaces for guidance, navigation, and ...
A "personal computer" version of Windows is considered to be a version that end-users or OEMs can install on personal computers, including desktop computers, laptops, and workstations. The first five versions of Windows– Windows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 –were all based on MS-DOS, and were aimed at both ...
The first HDD [11] had an average seek time of about 600 ms. [12] and by the middle 1970s, HDDs were available with seek times of about 25 ms. [13]Some early PC drives used a stepper motor to move the heads, and as a result had seek times as slow as 80–120 ms, but this was quickly improved by voice coil type actuation in the 1980s, reducing seek times to around 20 ms.
Microsoft's Windows 8, Windows 10 and Windows 11, and Apple's macOS have options for this. [citation needed] On Android devices, there is a factory data reset [4] option in Settings that will appear to erase all of the device's data and reset all of its settings. This method is typically used when the device has a technical problem that cannot ...