Normally the entire track is read or written in one shot, rather than sector-by-sector ; this made it possible to get rid of most of the inter-sector gaps that most floppy disk formats need to safely prevent the " bleeding " of a written sector into the previously-existing header of the next sector due to speed variations of the drive.

When dealing with large media files, the expansion or contraction of the INFO chunk during tag-editing can result in the following " data " section of the file having to be read and rewritten back to disk to accommodate the new header size.

The same stream could be saved to a data file on disk ( with 512 bytes of unused header space added ) as a PICT file.

The hashing algorithm determines a page number ( from which the physical disk address can be determined ), and the record is then stored on this page, or as near as possible to it, and is linked to the header record on that page using the CALC set.

* 50-pin header on mainboard to optional external 50 pin male IDC connector for external 8 " disk drives

GPT also provides redundancy, writing the GPT header and partition table both at the beginning and at the end of the disk.

The maximum angular diameter of any planetary disk as observed from the earth is about 1 minute of arc.

This is much smaller than the highest resolution of even the very large reflectors now under construction, and consequently the radio emission of different regions of the disk cannot be resolved.

The received radiation is compared with the radiation from a hypothetical black body which subtends the same solid angle as the visible disk of the planet.

The apparent black-body disk temperature is the temperature which must be assumed for the black body in order that the intensity of its radiation should equal that of the observed radiation.

The measured brightness temperature is a good approximation to the brightness temperature at the center of the lunar disk because of the narrow antenna beam and because the temperature distribution over the central portion of the moon's disk is nearly uniform.

Multiple anagramming is a technique used to solve some kinds of cryptograms, such as a permutation cipher, a transposition cipher, and the Jefferson disk.

Its purpose is to initialize the Amiga hardware and core components of AmigaOS and then attempt to boot from a bootable volume, such as a floppy disk or hard disk drive.

If the pencil with the angle u2 is that of the maximum aberration of all the pencils transmitted, then in a plane perpendicular to the axis at O ' 1 there is a circular disk of confusion of radius O ' 1R, and in a parallel plane at O ' 2 another one of radius O ' 2R2 ; between these two is situated the disk of least confusion.

Arcturus is thought to be an old disk star, and appears to be moving with a group of 52 other such stars, known as the Arcturus stream.

Unlike binary-addressed computer main memory, there is nothing in a disk drive that influences it to have a total capacity easily expressed using a power of 1024.

When the PC starts up, the first job for the BIOS is the power-on self-test, which initializes and identifies system devices such as the CPU, RAM, video display card, keyboard and mouse, hard disk drive, optical disc drive and other hardware.

If a DFS ROM is installed, will cause the computer to search for and load a file called on the floppy disk in drive 0.

However, an open disk is not compact, because a sequence of points can tend to the boundary without getting arbitrarily close to any point in the interior.

A common variant is the " business card " CD, a single with portions removed at the top and bottom making the disk resemble a business card.

This plastic pilot shaft guide tool is used to align the clutch disk as the spring-loaded pressure plate is installed.

Scribe V-shaped lines on the bar and rough out with either a hack saw or a cutting disk in a hand power tool.

To assemble jar, put paper pattern B for base in bottom of mold and clay disk B on top.

Place cylinder on a disk of clay slightly larger than cylinder.

Couperin also turns up along with some lesser-known contemporaries on a disk called Musique Francaise Du 18e Siecle ( BAM LD 060 ).

In fact, because of atmospheric refraction and because the sun appears as a disk and not a point, part of the midnight sun may be seen on the night of the northern summer solstice up to about 50 ′ () south of the Arctic Circle ; similarly, on the day of the northern winter solstice, part of the sun may be seen up to about 50 ′ north of the Arctic Circle.

Air felted to create the flat disk of the earth, which he said was table-like and behaved like a leaf floating on air.

Disks could be booted from via the standard " Shift + Break " key-combination, if the! BOOT file was present on the disk.

Per a News article on Page # 9 of the October 1984 issue of Acorn User, the Plus 3 was originally destined to have used the Intel 8272 disk controller, ( and not 8271, which were in short supply at the time ).

Applesoft II, which was made available on cassette and disk and in the ROM of the Apple II Plus and subsequent models, was released in 1978.

The " dual boot mode " BIOS actually discovered whether a TRS-DOS, or Aster CP / M disk was placed in the drive, and would, depending on the type of disk, reorganise the internal memory architecture of the system, to either be 100 % TRS-80 compatible or optimally support CP / M, with as much " workspace " as possible, and the 80x25 video mode.

This scene has been restored on the " directors cut bootleg edition " DVD and the double disk DVD, which also featured the cinematic version of the film.

The BIOS then locates boot loader software held on a peripheral device ( designated as a ' boot device '), such as a hard disk or a CD / DVD, and loads and executes that software, giving it control of the PC.

In past years, the Factbook was available on CD-ROM, microfiche, magnetic tape, and floppy disk.

In two dimensions, closed disks are compact since for any infinite number of points sampled from a disk, some subset of those points must get arbitrarily close either to a point within the disc, or to a point on the boundary.

Consequently, CDs are more likely to suffer damage on the label side of the disk.

Friction disk clutches generally are classified as push type or pull type depending on the location of the pressure plate fulcrum points.

Smaller data sets ease the strain on relatively expensive storage sub-systems such as non-volatile memory and hard disk, as well as write-once-read-many formats such as CD-ROM, DVD and Blu-ray Disc.

As implemented on the VIC-20 and Commodore 64, CBM DOS could transfer only about 300 bytes per second-compare the 300 baud data rate of the Commodore cassette storage system-which translated to about 20 minutes to copy one disk — 10 minutes of reading time, and 10 minutes of writing time.

The most common of these products were the Epyx FastLoad, the Final Cartridge, and the Action Replay plug-in cartridges, which all had machine code monitor and disk editor software on board as well.

Even though each 1541 had its own on board disk controller and disk operating system, it was not possible for a user to command two 1541 drives to copy a disk ( one drive reading and the other writing ) as with older dual drives like the 4040 and 8050 that were often found with the PET computer, and which the 1541 was backward compatible to ( it could read 4040 disks but not write to them since its internal Operating System was essentially the same ).