a. How can electronics be added to desktop computers?
b. What are expansion cards?
c. What is an electronic chip?
d. Where are computers on chips used?
e. What are smart cards for?
f. What devices are referred to as smart?
g. What can multimedia process?
h. What does multimedia enable computer systems to be used for?
user interface - пользовательский интерфейс; инструментарий пользователя, (может быть текстовым, графическим, речевым)
item - 1) элемент (данных) (data item); 2) пункт, позиция (например, списка)
menu ['menju:] - меню (предлагаемый системой или приложением набор возможных действий пользователя)
input device - устройство ввода; аппаратное устройство для ввода данных и/или команд в компьютер, чаще всего это клавиатура и мышь
Computer Programs
A set of instructions is known as a program. A computer program is a set of coded instructions that a computer can understand to solve a problem or produce a desired result.
Operating system helps all the programs to work together. Operating system provides an interface for the user. Some operating systems have graphical (user) interfaces that allow a computer user to select items from menus (lists of choices) and to start programs using input devices. It allows applications programs to communicate with the hardware.