TC446

Binary, Bits, and Bytes

File Size

File size refers to the amount of memory or secondary storage required to hold the data that makes up a file.

Data Rate

Data rate refers to the amount of data that can be transferred from one location to another in a given amount of time.

To play 320x240, 16 bit color video at 30 frames per second with a 44.100 kHz, 16 bit, stereo sound, we must be able to transfer at least 4672 KB/sec. from our storage device (CD-ROM, Hard Drive, Internet) into the computer's memory. There are a number of additional transfer and processing steps that take place inside the computer to actually display the video on a monitor and play the sound through a speaker, but let's just focus on the transfer between the storage device and the computers memory because that usually turns out to be the largest bottleneck.

Basics of Compression

Andrew File System Retirement

Andrew File System, which hosts this address, will be ending service by January 1, 2021. Learn about the retirement process, managing your existing files, and alternative services at the Andrew File System Retirement Information Page.

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