Вопрос № 223140 - Английский язык

Прочитайте текст
Optional peripheral devices are added to a computer system according to the specific needs of the system users. For example, computer systems that are used primarily for program development may have extra storage devices and a high-speed printing device. Computer systems used in a laboratory may have graphics display hardware, an oscilloscope device, and an analog-to-digital converter. Computer systems that provide (or use) information in conjunction with another kind of computer system usually have a magtape device, because magtane device is an industry-standard storage device.
Закончите предложение
Optional peripheral devices are added to a computer system according to _____________.

Прочитайте текст
Under MS-DOS 3.20 you can create and access names for many different types of devices - just as if they are physical disk drives installed in your system. The devices you can access as disks are:
- internal floppy-disk drives
- external floppy-disk drives
- additional drive identifiers for floppy-disk drives, defined by DRIVER.SYS
- hard-disk drives of many different sizes
- RAM disks created in the computer’s memory
- directories that  have  been given logical  drive names using SUBST
Ответьте на вопрос
Can you create and access names for all devices in MS-DOS 3.20 system?

Прочитайте текст
Computer keyboard is the set of typewriter-like keys that enables you to enter data into a computer. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. The keys on computer keyboards are often classified as follows:
alphanumeric keys - letters and numbers;
punctuation keys - comma, period, semicolon, and so on;
special keys - function keys, control keys, arrow keys, Caps Lock key, and so on.
Ответьте на вопрос
What are computer keyboards similar to?

Прочитайте текст
There is no standard computer keyboard, although many manufacturers imitate the keyboards of PCs. There are actually three different PC keyboards: the original PC keyboard, with 84 keys; the AT keyboard, also with 84 keys; and the enhanced keyboard, with 101 keys. The three differ somewhat in the placement of function keys, the Control key, the Return key, and the Shift keys.
In addition to these keys, IBM keyboards contain the following keys: Page Up, Page Down, Home, End, Insert, Pause, Num Lock, Scroll Lock, Break, Caps Lock, Print Screen.
Ответьте на вопрос
How many keys has enhanced keyboard?

Прочитайте текст
Hard disk drive is the mechanism that reads and writes data on a hard disk. Hard disk drive has many inflexible platters (discs) coated with magnetic material. Read/write heads can record computer data on these discs. A typical hard disk rotates at 3,600 revolutions per minute, and the read/write heads ride over the surface of the disk on a cushion of air 25 micron deep. Hard disk drives (HDDs) for PCs generally have seek times of about 12 milliseconds or less. Hard disk drives are sometimes called Winchester drives. Winchester is the name of one of the first popular hard disk drive technologies developed by IBM in 1973.
Ответьте на вопрос
How are hard disk drives sometimes called?

Прочитайте текст
Microprocessor is a silicon chip that contains a CPU. The terms microprocessor and CPU are used interchangeably. At the heart of all personal computers sits a microprocessor.
Microprocessors have basic characteristics:
Computational bandwidth: The number of bits processed in a single instruction.
Speed: Given in megahertz (MHz), the speed determines how many instructions per second the processor can execute.
Ответьте на вопрос
What is a microprocessor?