Bài giảng Computer - Chapter 01

Chapter Overview The Development of the Computer The Role of a Computer Service Professional 1The Abacus 2The Analytical Engine 3The First Electrically Driven Computer 4The Digital Electronic Computer 1939: Atanasoff-Berry Computer (ABC)1943: Colossus I1945: Electronic Numerical Integrator and Computer (ENIAC) 1960s–1970s: Golden era of the mainframe computer 5Milestones of Modern Computing 1971: first 4-bit multiprocessor (MP) 4004— 1 MHz1978: first 16-bit MP 8086 and coprocessor 80871981: first PC by IBM (MS-DOS)—4.7 MHz1986: first 32-bit computer—803861992: first Pentium—i5861999: processor speed exceeds 1 GHz 6The Role of a Computer Service Professional Technician: troubleshoot hardware and softwareScholar: continuously update skills and broaden knowledgeDiplomat: cultivate good customer service skills 7Chapter Summary The abacus was the first computing device.Charles Babbage conceived the first mechanical computer. The first electrical computer computed results of the 1890 United States census.The Atanasoff-Berry Computer (1939) was the first digital computer. Today’s computer service professional must be a technician, scholar, and diplomat. 8