Digital Technology CCEA GCSE Unit1 Data

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

An analogue signal is a continuous varying signal that represents a ___ quantity?

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

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

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

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

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

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

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

Bit rate is the quantity of data processed in a given amount of time. It can be measured in?

Order these elements of an information system.

Put in order...smallest to largest.

Bit depth: bits used to store each sound sample. A 4 bit system would have ? possible sounds.

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

Which of these is not a video format?

Which of these is not an audio file?

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

Which of these is data, rather than information?

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

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

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

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

Which of these is not an image format?

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 _____?

Data can be a character, a single letter or digit from the character set ASCII. What is ASCII?

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