Active Vocabulary
Date: 2015-10-07; view: 458.
barcode [‘bɑ:kǝud] – øòðèõ-êîä input device[‘ɪnput dɪ'vaɪs]–óñòðîéñòâî ââîäà
barcode reader [‘rɪ:dǝ]–ñ÷èòûâàòåëü øòðèõ-êîäà RAID – ïàêåò äèñêîâ
CD-R – çàïèñûâàåìûé êîìïàêò-äèñê read/write head [‘ri:d raɪt hed] – ãîëîâêà
CD-ROM – êîìïàêò-äèñê òîëüêî äëÿ ÷òåíèÿ ÷òåíèÿ/çàïèñè
CD-RW – ïåðåçàïèñûâàåìûé êîìïàêò-äèñê scanner [‘skænǝ]–ñêàíèðóþùåå óñòðîéñòâî
crash [kræʃ] – âûõîäèòü èç ñòðîÿ sector - ñåêòîð
disk - äèñê storage device [‘stɔ:rɪʤ] - çàïîìèíàþùåå
DVD [‘vǝ:sǝtaɪl] – öèôðîâîé ñú¸ìíûé äèñê óñòðîéñòâî
format [‘fɔ:mǝt] - ôîðìàòèðîâàòü track [træk] - äîðîæêà
hard disk [hɑ:d] – æ¸ñòêèé äèñê
Text 2.5. Read the text and make a list of computer specifications.
When comparing computers, the power of the computer is important. This is mainly determined by the speed and capacity (size) of each part of the computer.
Speed is measured in hertz (Hz) i.e. cycles per second.
Capacity is measured in bytes (B) where 1 byte = 8 bits (binary digits) = 1 character.
When specifying a computer the following are normally quoted:
a the speed of the processor (MHz – megahertz, GHz – gigahertz)
b the capacity (size) of the memory (MB – megabytes)
c the capacity (size) of the magnetic storage devices e.g. hard disk (MB –megabytes, GB – gigabytes)
d the speed of the optical storage devices e.g. CD-ROM, DVD (given as a multiple of the speed of the first devices produced e.g. 24x = 24 times, 12x = 12 times)
e the display monitor size (measured in inches diagonally across the screen surface)
f the monitor image quality (resolution) given by the number of pixels (picture elements) that are used across and down the screen e.g. 800 x 600, or by the graphics standard used e.g. VGA (video graphics array), SVGA (super video graphics array)
g the graphics card memory size (MB – megabytes)
h the speed of the modem (measured in kbps – kilobits per second)
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