Cambridge Professional English Infotech English for computer users Fourth Editiorf

handheld game /'handheld ,geim/ n A game played on portable gaming devices, such as the Sony PSP and the Nintendo DS. handheld scanner /'haendheld ,sksena/ n
A scanner that is moved by hand, ideal for capturing small pictures, logos and bar codes, hard disk/'ha:d .disk/ n See hard drive
hard drive /'ha:d ,draiv/ n A magnetic storage device that reads and writes data on metal disks (called platters) inside a sealed case. A hard drive is commonly known as a hard disk. Strictly speaking, drive refers to the entire unit, containing multiple platters, a read/write head and a motor, while hard disk refers to the storage medium itself.
hardware /'haidwea/ nThe physical units which make up a computer system. See software, hardware engineer/'huidwea end3i,ma/ n
Someone who designs and develops IT devices, header /'heda/ n Customized text printed in the top margin of a document.
help desk technician /'help ,desk
tek.mjbn/ n Someone who helps end users with their computer problems in person, by email or over the phone, hertz /h3:ts/ n A unit of frequency equal to one cycle per second, named after Heinrich Hertz, high-level language/,hai ,leval 'lasr)gwid3/ n A language in which each statement represents several machine code instructions, e.g. COBOL, Pascal or C.
home cinema /.haum 'sinama/ n A system that tries to reproduce the cinema experience in the home. It is also called home theatre and typically includes a large-screenTV, a hi-fi system with speakers for surround sound, and a DVD recorder.