Digital Technology CCEA GCSE Unit1 Data

Sample rate is the number of audio sound samples captured every second, it is measured in ___?

1 byte is 2 nibbles. A nibble is 4 bits. How many nibbles are needed to store the word DIGITAL

A buffer is a ____ store for a downloaded part of the video, before it is watched?

Data portability is the ability to _____ data between computers or between software.

In lossy compression the size is reduced by removing some of the data, what is the other type?

Bitmap graphics are made up of pixels. Bitmap graphics become ______ when enlarged.

Which of these is not an audio file?

A character (letter, digit, symbol) is represented by one byte. How many bits in a byte?

Which of these is not a video format?

Which of these is data, rather than information?

Put in order...smallest to largest.

What process allows video to be viewed straight away without waiting for the full download?

The term 'bit' is short for...?

Data can be stored as numeric data. What can a real number have that an integer doesn't?

The greater the number of pixels used in an image the higher the _____?

Order these elements of an information system.

Data can be stored as Date/Time. Which of these is short time?

A pixel is the smallest unit of a digital image. A 2⁵ pixel could have how many colours?

Before a computer can process a sound it has to be converted using an ADC, what is ADC?

Vector based graphics are made from mathematical shapes & will not lose ______ when enlarged?

A bit is the smallest unit of computer storage and has only two values, which are...?

Which of these is used to transfer between database and spreadsheet applications?

Which of these is not an image format?