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Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Algorithms may take advantage of visual perception and the statistical properties of image data to provide superior results compared with generic data compression methods which are used for other digital data.
It is possible to compress many types of digital data in a way that reduces the size of a computer file needed to store it, or the bandwidth needed to transmit it, with no loss of the full information contained in the original file.
JPEG XR [4] (JPEG extended range [5]) is an image compression standard for continuous tone photographic images, based on the HD Photo (formerly Windows Media Photo) specifications that Microsoft originally developed and patented. [6]
The PowerPC 7400 (code-named "Max") debuted in August 1999 and was the first processor to carry the "G4" moniker. The chip operates at speeds ranging from 350 to 500 MHz and contains 10.5 million transistors, manufactured using Motorola's 0.20 μm HiPerMOS6 process.
Mac is a family of personal computers designed and marketed by Apple since 1984. The name is short for Macintosh (its official name until 1999), a reference to a type of apple called McIntosh. The current product lineup includes the MacBook Air and MacBook Pro laptops, and the iMac, Mac Mini, Mac Studio, and Mac Pro desktops.
The highest-rated DDR2 modules in 2009 operate at 533 MHz (1066 MT/s), compared to the highest-rated DDR modules operating at 200 MHz (400 MT/s). At the same time, the CAS latency of 11.2 ns = 6 / (bus clock rate) for the best PC2-8500 modules is comparable to that of 10 ns = 4 / (bus clock rate) for the best PC-3200 modules.
The $1,500 model had 2 MB of memory and a 40 MB hard disk. The Classic features several improvements over the Macintosh Plus , which it replaced as Apple's low-end Mac computer: it is up to 25 percent faster than the Plus, [ 1 ] about as fast as the SE, [ 5 ] and includes an Apple SuperDrive 3.5" floppy disk drive as standard. [ 19 ]
The CPU could be replaced with a new CPU board containing up to 8 MB RAM, called XLerator 18. [5] The maximum upgraded RAM with conventional add-in RAM cards was up to 2 MB – quadruple the maximum capacity of earlier Macintosh computers. With modifications to the CPU board, the XL could accommodate up to 4 MB of RAM. [6]