INTEL 8048
\ˈɪntɛl ˈe͡ɪt θˈa͡ʊzənd ən fˈɔːtiˈe͡ɪt], \ˈɪntɛl ˈeɪt θˈaʊzənd ən fˈɔːtiˈeɪt], \ˈɪ_n_t_ɛ_l ˈeɪ_t θ_ˈaʊ_z_ə_n_d ə_n f_ˈɔː_t_i__ˈeɪ_t]\
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The microcontroller used in IBM PC keyboards.The 8048 was inspired by, and similar to, the Fairchild F8microprocessor but, being a microcontroller, was designed forlow cost and small size. The 8048 has a modified Harvardarchitecture, with program ROM on chip and 64 to 256 bytesof RAM also on chip. I/O is mapped in its own addressspace.Though the 8048 was eventually replaced by the very popularbut bizarre Intel 8051 and Intel 8052, even in 2000 it isstill very popular due to its low cost, wide availability, anddevelopment tools.[Was it really __the_first__ microcontroller? Are the ROM andRAM both on-chip?]
By Denis Howe
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.