A trial printed sheet or copy,for the purpose of checking. Following the progression of work,there are different types of proof:gally proof,page-up proof and press proof,Also called a Pull.

An abbreviation for author's alteration.It is commonly used in America to identify any alteration in text or illustrative matter which is not a printer's error as author's alteration usually charged as extra.Similar English term is Author's correction.

A standard series of symbols used by mproofreaderto denote errors and the  necessary corrections.

The design of a fount of type in which each characters were assingned a width,known as set,in accordance to its shape.For example, the set for the letter M is three times of the letter I.

The proper procedure for the accomplishment of computer internal communication; including the log-on,data file access,and its communication with other systems.As far as protocols for representating text are concerned, the main schemes are ASCII and EBCDIC.

Any device which is capable of receiving data in one form and outputting it in another,so establishing communication between systems employing different protocols.A media converter is a example of a sophisticated form of protocol converter.

An instrument for the accurate determination of relative humidity.It consists of a wet and dry bulb thermometer.

Material which is free from copright encumbrance and freely available to anyone who wishes to use it.

One who makes a business of publishing and marketing books,magazines or newspapers. per.

All the activities leading to the printing of a publication such as a book,magazine of newspaper,as well as those activities such as marketing and distributing it to the public.

A proof,See Proof.

Also referred to as pro-up menus.OPtions are revealed only when a menu type is accessed, usually by a pointing and clicking action with a mouse.Once the option has been selected the menu disappears leaving the screen free.

Part of a publication which can be removed  from the binding and used separately.

The mixture of fibre,water,bleaches and fillers from which paper is made.There are two main category of pulp,viz:Mechanical pulp and Chemical pulp.

A homogeneous board manufactured to its full thickness on the papermaking machine.When mixing pulp with pulp boards made of  different type of fibres,paper of different quality can be made.

A regular,significant abrupt change of short duration in the level of an electric voltage or current.

Card punched with a pattern of holes encoding data for storage and reading.

Device which punches registered holes in sets of films or plates for positioning purposes.See Pin register system.

Synonymous with Paper tape,Perforated tape,See paper tape.

Marks to be put into a piece of witing for clarity of meaning.They are:

Colour in its own natural form and containing no grey.

One of the three characteristics of colour.It is an objective expression to show if there is any grey in a colour.A 100%purity means the colour contains no grey.Also called Saturation.The subjective term for this characteristic is Chroma.

A list of items which is constructed and maintained so that each item stored bbecomes the first item of the list.The opposite of a pushup list.

A list of items which is constructed and maintained so that each additional item stored is placed at the end of the list.