2-Mavzu. Kompyuterlarni tashkil qilishning raqamli mantiqiy asoslari

Information
Control device
b)
B tail
M central processing
Peripheral device
Information
Control device
d)
Software (driver)
Figure 3. Data exchange management
Hisoblash tizimlarida ma’lumotlarni uzatishni boshqarishning asosiy prinsiplari
Faol qurilma
Passiv qurilma
Ma’lumotlar
Yetakchi beruvchi
(Master)
Tobe ijrochi
(Target)
Protsessor (Pr.)
Tezkor xotira (TSQ)
Periferik qurilma
Periferik qurilma (PQ)
a)
Protsessor
Tezkor saqlash qurilmasi
Ma’lumotlar
Boshqarish qurilmasi
b)
Bo’yruq
Markaziy protsessor
Periferik qurilmasi
Ma’lumotlar
Boshqarish qurilmasi
d)
Dastur (drayver)
3-rasm. Ma’lumotlarni almashishni boshqarish

Between MP and PQ information transfer formed reach

Interface using reciprocal attitude to be all devices two type divided into : transmitter ( master , active device ), I / O process start and management , executors ( passive device ), they acceptance does ( exit , write ) or give ( enter , read ) and master orders does _

M information transmitter device source , acceptance seeker esa acceptance seeker is _ MP har always provider , TSQ si esa always performer . PQ both both will be . M information from the supplier to the executor transfer write operation , vice versa and - reading operation with formed are given . MP and PQ _ between transmission process information input-output deb is called

K input-output processes in doing processor loading minimization for management functions a how many devices distributed : processor , core input-output controllers ( channels ), PQ controllers and PQ management blocks .

MP va PQ o’rtasida ma’lumotlarni uzatishni tashkil etish

Interfeys yordamida o’zaro munosabatda bo’ladigan barcha qurilmalar ikki turga bo’linadi: beruvchi (master, faol qurilma), kiritish-chiqarish jarayonni boshlash va boshqarish, ijrochilar (passiv qurilma), ular qabul qiladi (chiqish, yozish) yoki berish (kirish, o’qish) va master buyurtmalarni bajaradi.