1953 – Born in San Francisco on the 26th of November.
1964 – Began working odd jobs from sweeping doctors’ offices to picking prunes at nearby orchards.
1975 – Belluzzo joined HP and worked in the accounting department at the Santa Rosa site.
1978 – He was promoted to accounting manager for the Disk Memory Division in Boise and then controller for the division.
1975 – He got an accounting degree from Golden Gate University.
1983-1984 – He assumed additional responsibility as controller for the former Information Products Group, and, he was named marketing manager for DMD.
1986 – He was named marketing manager for the former Peripherals Group.
1987-1988 – He was named operations manager for the former Boise Printer Operation when it was formed and became general manager of that operation when it became a division.
1991-1992 – Belluzzo was promoted to general manager of the Inkjet Products Group and was elected a vice president.
1993 – Belluzzo became general manager of the former Hardcopy Products Group and later that year was promoted to general manager of the Computer Products Organisation.
1995 – Belluzzo was elected a senior vice president. Later that year, he assumed management responsibility for the newly formed Computer Organisation and was elected an executive vice president.
– Belluzzo was elected to the board of directors of Proxima Corporation.
2001-2002 – President of Microsoft Corp.
– Chief operating officer of Microsoft Corp.